To see the other types of publications on this topic, follow the link: HIIT.
Journal articles on the topic 'HIIT'
Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles
Consult the top 50 journal articles for your research on the topic 'HIIT.'
Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.
You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.
Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.
1
Lu, Yining, Huw D. Wiltshire, Julien S. Baker, and Qiaojun Wang. "The Effects of Running Compared with Functional High-Intensity Interval Training on Body Composition and Aerobic Fitness in Female University Students." International Journal of Environmental Research and Public Health 18, no. 21 (October 28, 2021): 11312. http://dx.doi.org/10.3390/ijerph182111312.
Full textAbstract:
High-intensity interval running (HIIT-R) and high-intensity functional training (HIFT) are two forms of HIIT exercise that are commonly used. The purpose of this study was to determine the effects of HIFT on aerobic capacity and body composition when compared to HIIT-R in females. Twenty healthy, untrained female university students (age 20.5 ± 0.7 year) were randomly assigned to a 12-week HIIT-R or HIFT intervention. The HIIT-R group involved a 30 s maximal shuttle run with a 30 s recovery period, whereas the HIFT involved multiple functional exercises with a 2:1 work-active recovery ratio. Body composition, VO2max, and muscle performance were measured before and post intervention. As a result, HIIT-R and HIIT-F stimulated similar improvements in VO2max (17.1% ± 5.6% and 12.7% ± 6.7%, respectively, p > 0.05). Only the HIIT-F group revealed significant improvements in muscle performance (sit-ups, 16.5% ± 3.1%, standing broad jump 5.1% ± 2.2%, p < 0.05). Body fat percentage decreased (17.1% ± 7.4% and 12.6% ± 5.1%, respectively, p < 0.05) in both HIIT-R and HIIT-F with no between-group differences. We concluded that HIFT was equally effective in promoting body composition and aerobic fitness compared to HIIT-R. HIFT resulted in improved muscle performance, whereas the HIIT-R protocol demonstrated no gains.
2
Evangelista, Alexandre Lopes, Cauê Vazquez La Scala-Teixeira, Leandro Henrique Albuquerque Brandão, Alexandre Fernandes Machado, Danilo Sales Bocalini, Letícia Menezes Santos, and Marzo Edir Da Silva-Grigoletto. "Treinamento intervalado de alta intensidade: uma breve revisão sobre o conceito e diferentes aplicações." Revista Brasileira de Fisiologia do Exerc&iacute cio 20, no. 6 (February 1, 2022): 665–76. http://dx.doi.org/10.33233/rbfex.v20i6.4338.
Full textAbstract:
Introdução: Devido à sua característica altamente dinâmica e à eficiência do tempo gerado em relação a outros métodos de treinamento, o Treinamento Intervalo de Alta Intensidade (HIIT) tem se tornado uma estratégia utilizada em diferentes contextos. O HIIT é entendido como um método de treinamento que intercala períodos de esforço realizados em alta intensidade com períodos de recuperação ativa (quando uma atividade é realizada em baixa intensidade) ou passiva (quando nenhuma atividade é realizada). Partindo desse conceito que não discrimina tipos de exercícios, diferentes modelos de HIIT podem ser encontrados na literatura, como o HIIT clássico, Sprint Interval Training (SIT), HIIT com peso corporal, Treinamento Funcional de Alta Intensidade (HIFT), Treinamento em Circuito de Alta Intensidade (HICT), e Treinamento Resistido de Alta Intensidade (HIRT), ampliando as possibilidades de aplicação do HIIT para diferentes finalidades e públicos. Objetivo: a) revisitar, através de uma breve atualização, o conceito de HIIT e seus diferentes aspectos; b) apresentar, do ponto de vista científico, diferentes protocolos que podem ser aplicados com base no conceito de HIIT e seus efeitos. Conclusão: Com base no conceito exposto e nas variáveis de controle de intensidade HIIT, esta abordagem pode ser aplicada a diferentes modalidades de treinamento. Além disso, pode ser usado como uma estratégia para fornecer treinamento seguro e eficiente para diferentes populações.
3
Vaccari, Filippo, N. Giovanelli, and S. Lazzer. "High-intensity decreasing interval training (HIDIT) increases time above 90% $$\dot{V}$$O2peak." European Journal of Applied Physiology 120, no. 11 (August 11, 2020): 2397–405. http://dx.doi.org/10.1007/s00421-020-04463-w.
Full textAbstract:
Abstract Purpose Training near $$\dot{V}$$ V ˙ O2max is considered to be the most effective way to enhance $$\dot{V}$$ V ˙ O2max. High-intensity interval training (HIIT) is a well-known time-efficient training method for improving cardiorespiratory and metabolic function and $$\dot{V}$$ V ˙ O2max. While long HIIT bouts allow $$\dot{V}$$ V ˙ O2max to be achieved quickly, short HIIT bouts improve time to exhaustion (Tlim). The aim of this study was to evaluate the time spent above 90% $$\dot{V}$$ V ˙ O2peak (T > 90% $$\dot{V}$$ V ˙ O2peak) during three different HIIT protocols. Methods Twelve cyclists performed three HIIT sessions. Each protocol had the same work and recovery power and ratio of work·recovery−1. The protocols consisted of long-interval HIIT (LIHIIT, 3 min work—2 min recovery), short-interval HIIT (SIHIIT, 30 s work—20 s recovery), and high-intensity decreasing interval training (HIDIT, work from 3 min to 30 s and recovery from 2 min to 20 s). T > 90% $$\dot{V}$$ V ˙ O2peak, Tlim, blood lactate [La], and rate of perceived exertion (RPE) were measured at Tlim. Results T > 90% $$\dot{V}$$ V ˙ O2peak was greater in HIDIT (312 ± 207 s) than in SIHIIT (182 ± 225 s; P = 0.036) or LIHIIT (179 ± 145 s; P = 0.027). Tlim was not significantly different (P > 0.05) between HIDIT (798 ± 185 s), SIHIIT (714 ± 265 s), and LIHIIT (664 ± 282). At Tlim, no differences in [La] and RPE were found between protocols (P > 0.05). Conclusion HIDIT showed the highest T > 90% $$\dot{V}$$ V ˙ O2peak, suggesting that it may be a good strategy to increase time close to $$\dot{V}$$ V ˙ O2peak, despite similar Tlim, [La], and RPE at Tlim.
4
Pin-Barre, Caroline, Nicolas Hugues, Annabelle Constans, Eric Berton, Christophe Pellegrino, and Jérôme Laurin. "Effects of Different High-Intensity Interval Training Regimens on Endurance and Neuroplasticity After Cerebral Ischemia." Stroke 52, no. 3 (March 2021): 1109–14. http://dx.doi.org/10.1161/strokeaha.120.031873.
Full textAbstract:
Background and Purpose: The objective is to compare the effects of high-intensity interval training (HIIT) with long versus short intervals on endurance and motor performance. Their influence on neuroplasticity markers is assessed in the ipsilesional and contralesional cortex and hippocampus since their remodeling could improve functional recovery. Methods: Rats performed work-matched HIIT4 (long intervals: 4 minutes) or HIIT1 (short intervals: 1 minute) on treadmill for 2 weeks following transient middle cerebral artery occlusion. Forelimb grip strength evaluated motor function while incremental exercise tests measured the endurance performance. Key neuroplasticity markers were assessed by Western blot. Results: Both regimens were effective in enhancing both the speed associated with the lactate threshold and maximal speed at D8 and D15. Neuroplasticity markers were upregulated in the contralesional hemisphere after training contrary to the ipsilesional side. Grip strength completely recovered but is faster with HIIT4. Conclusions: HIIT with short and long intervals induced early aerobic fitness and grip strength improvements. Our findings revealed that neuroplasticity markers were upregulated in the contralesional cortex and hippocampus to promote functional recovery.
5
Feito, Yuri, Katie Heinrich, Scotty Butcher, and Walker Poston. "High-Intensity Functional Training (HIFT): Definition and Research Implications for Improved Fitness." Sports 6, no. 3 (August 7, 2018): 76. http://dx.doi.org/10.3390/sports6030076.
Full textAbstract:
High-intensity functional training (HIFT) is an exercise modality that emphasizes functional, multi-joint movements that can be modified to any fitness level and elicit greater muscle recruitment than more traditional exercise. As a relatively new training modality, HIFT is often compared to high-intensity interval training (HIIT), yet the two are distinct. HIIT exercise is characterized by relatively short bursts of repeated vigorous activity, interspersed by periods of rest or low-intensity exercise for recovery, while HIFT utilizes constantly varied functional exercises and various activity durations that may or may not incorporate rest. Over the last decade, studies evaluating the effectiveness of HIIT programs have documented improvements in metabolic and cardiorespiratory adaptations; however, less is known about the effects of HIFT. The purpose of this manuscript is to provide a working definition of HIFT and review the available literature regarding its use to improve metabolic and cardiorespiratory adaptations in strength and conditioning programs among various populations. Additionally, we aim to create a definition that is used in future publications to evaluate more effectively the future impact of this type of training on health and fitness outcomes.
6
Hajizadeh Maleki, Behzad, Bakhtyar Tartibian, and Mohammad Chehrazi. "The effects of three different exercise modalities on markers of male reproduction in healthy subjects: a randomized controlled trial." Reproduction 153, no. 2 (February 2017): 157–74. http://dx.doi.org/10.1530/rep-16-0318.
Full textAbstract:
The aim of this study was to investigate the effects of moderate-intensity continuous training (MICT), high-intensity continuous training (HICT) and high-intensity interval training (HIIT) on markers of male reproduction including seminal markers of oxidative stress and inflammation as well as semen quality and sperm DNA integrity in healthy human subjects. A total of 397 healthy male volunteers were screened and 280 were randomly assigned to one of the MICT (n = 70), HICT (n = 70), HIIT (n = 70) and non-exercise (NON-EX, n = 70) groups. Subjects had inflammatory markers (IL-1β, IL-6, IL-8 and TNF-α), oxidants (ROS, MDA and 8-isoprostane), antioxidants (SOD, catalase and TAC), semen parameters and sperm DNA damage measured at baseline (T1), the end of week 12 (T2), the end of week 24 (T3), and 7 (T4) and 30 days (T5) after training. Chronic MICT, HICT and HIIT attenuated seminal markers of oxidative stress and inflammation with different kinetics for the three types of exercise (P < 0.05), and these changes were correlated with favorable improvements in semen quality parameters and sperm DNA integrity (P < 0.05). MICT was superior to HICT and HIIT in the improvements of markers of male reproductive function (P < 0.05). In conclusion, different exercise modalities favorably affect markers of male reproduction with different kinetics, suggesting intensity-, duration- and type-dependent adaptations to exercise training in healthy human subjects.
7
Marterer, Natalie, Verena Menz, and Martin Burtscher. "Effekte eines hochintensiven Intervalltrainings in der Ebene und in ansteigendem Gelände hinsichtlich der physischen Leistungsfähigkeit." Sportverletzung · Sportschaden 32, no. 02 (April 5, 2018): 120–24. http://dx.doi.org/10.1055/a-0575-2965.
Full textAbstract:
Zusammenfassung Hintergrund Mit Zunahme hochintensiven Intervalltrainings (HIIT) im Breiten- und Leistungssport steigt das Verletzungs- und Überlastungsrisiko. Für die Effektivität eines HIITs in ansteigendem Gelände (bergauf) fehlen wissenschaftliche Evidenz und verlässliche Angaben für Intensität, Dauer und Steigungsgrad. Das Ziel dieser Untersuchung war es, die Belastungsverträglichkeit und Leistungsveränderungen (VO2max und 800 m-Laufzeit in der Ebene und bergauf) durch HIIT in der Ebene und in ansteigendem Gelände zu vergleichen. Probanden und Methoden An der Untersuchung nahmen insgesamt 17 gut trainierte SportstudentInnen (Ø VO2max von 53,7 ml/min/kg) teil, die randomisiert in die Gruppen Ebene (GE; n = 8) und Berg (GB; n = 9) eingeteilt wurden. Die Probanden beider Gruppen absolvierten innerhalb von 4 Wochen 14 HIIT-Einheiten in ansteigendem Gelände (GB) oder in der Ebene (GE). Jede HIIT-Einheit bestand aus 8 × 2 min-Läufen bei 90 – 95 % der maximalen Herzfrequenz (HFmax) bei einer Work/ Rest-Ratio von 1:1. Die Vor- und Nachtests (VT) bestanden aus einer Spirometrie auf dem Laufband und 800 m-Lauftests in der Ebene und in ansteigendem Gelände. Nach der Intervention haben alle ProbandInnen anhand der BORG-Skala das individuelle Belastungsempfinden beurteilt. Ergebnisse In der GE konnten 3 Probanden ihr Training aufgrund von Überlastungssymptomen nicht zu Ende bringen, in der GB 2 Probanden aus zeitlichen Gründen. Bei der Auswertung des Belastungsempfindens war eine Tendenz (p = 0,08; t = – 1,96) erkennbar, dass das Training in der Ebene als anstrengender empfunden wurde. Durch ein vierwöchiges HIIT hat sich die VO2max durchschnittlich um 5,2 % (p = 0,02; t = – 2,76), die 800 m-Zeit in der Ebene um 4,6 % (p = 0,01; t = 3,48) und die 800 m-Zeit in ansteigendem Gelände um 6,3 % (p = 0,02; t = 2,77) signifikant verbessert. Es konnte kein signifikanter Gruppeneffekt festgestellt werden. Diskussion und Schlussfolgerung Diese Untersuchung ist ein weiteres Beispiel dafür, dass sich die sportartspezifische Leistungsfähigkeit gut trainierter Athleten nach einem HIIT signifikant verbessert. Die Verbesserung der Laufleistungen unterscheidet sich nicht zwischen den Trainingsgruppen (Bergauf vs. Ebene). Bedeutsam ist die Beobachtung, dass Bergauf-HIITs tendenziell besser verträglich waren als HIITs in der Ebene.
8
Díaz-García, Jesús, Vicente Javier Clemente-Suárez, Juan Pedro Fuentes-García, and Santos Villafaina. "Combining HIIT Plus Cognitive Task Increased Mental Fatigue but Not Physical Workload in Tennis Players." Applied Sciences 13, no. 12 (June 12, 2023): 7046. http://dx.doi.org/10.3390/app13127046.
Full textAbstract:
Mental fatigue can significantly impair physical performance during sports practice. However, previous studies have not analyzed the impact of combining High-Intensity Interval Training (HIIT) with a cognitive task on physical performance. In this line, we developed the present research to investigate the specific aspects of mental and physical fatigue as well as the potential impact of combining HIIT with a cognitive task. Therefore, the objective of this study was to compare mental and physical fatigue indicators between single HIIT and an incongruent Stroop task added to the HIIT protocol. A cross-sectional study was conducted with 32 tennis players (25 men and 7 women, mean age = 21.40). Two HIIT sessions were performed: (1) one with the incongruent Stroop task presented during rests, and (2) another without the Stroop task during rests. Mental fatigue, mental load, and wellness were measured. Additionally, mean and maximum heart rate, mean and peak speed, and heart rate variability through RMSSD were recorded using a heart rate monitor. Mann-Whitney U tests and Wilcoxon tests were performed to explore differences between during-session loads and pre- and post-HIITs. The results showed that mixed HIIT with the incongruent Stroop task caused higher increases in mental fatigue (p = 0.04) and the ratio of perceived exertion (p = 0.001) from pre- to post-HIIT. However, no significant differences in external (speed) and internal (heart rate) factors were observed between the protocols. This suggests that subjective feelings of physical exertion increased significantly due to mental fatigue. However, it did not decrease the physical workload during HIIT for tennis players. Therefore, incorporating short periods of the incongruent Stroop task during HIIT could be used to develop tolerance to mental fatigue without a decrease in the workload.
9
Suárez-Iglesias, David, Alejandro Rodríguez-Fernández, Alejandro Vaquera, José Gerardo Villa-Vicente, and Jose A. Rodríguez-Marroyo. "Comparative Effects of Two High-Intensity Intermittent Training Programs on Sub-Elite Male Basketball Referees’ Fitness Levels." Sports 12, no. 2 (February 2, 2024): 51. http://dx.doi.org/10.3390/sports12020051.
Full textAbstract:
This study aimed to compare the effects of an 8-week short-term training program, comprising repeated sprints or running-based high-intensity intermittent training (HIIT), on the aerobic fitness and repeated sprint ability (RSA) performance of sub-elite basketball referees. Twenty male referees participated in supervised training sessions twice a week. They were randomly assigned to either the RSA-based group (RSAG) or the running-based HIIT group (HIITG). The RSAG conducted 3–4 sets of 8 × 20-m all-out sprints, while the HIITG performed 2–3 sets of 6 × 20-s runs at 90% of their maximal velocity achieved in the 30–15 intermittent fitness test (30–15IFT). Referees underwent a graded exercise test on a treadmill, the 30–15IFT, and an RSA test before and after the training program. Both groups showed significant improvement (~3%) in the fastest (22.6 ± 1.4 vs. 23.4 ± 1.7 and 22.0 ±1.9 vs. 22.4 ± 1.7 km·h−1 in RSAG and HIITG, respectively) and mean (21.5 ± 1.2 vs. 22.4 ± 1.4 and 21.3 ± 1.8 vs. 21.7 ± 1.6 km·h−1 in RSAG and HIITG, respectively) sprint velocity of the RSA test (p < 0.05). Moreover, positive changes (p < 0.05) were observed in the 30–15IFT maximal velocity (18.6 ± 1.1 vs. 19.3 ± 1.0 and 19.4 ± 0.9 vs. 20.5 ± 0.9 km·h−1 in RSAG and HIITG, respectively). In conclusion, an 8-week training intervention using either RSA or running-based HIIT led to similar improvements in referees’ RSA performance and specific aerobic fitness measures. These findings could assist in devising tailored training programs for basketball referees.
10
Arslan, Birgül. "Acute Effects of Two Different Concurrent Training Models on Physiological Parameters, Explosive Strenght and Balance Performance in Soccer Players." Turkish Journal of Sport and Exercise 26, no. 1 (January 19, 2024): 38–48. http://dx.doi.org/10.15314/tsed.1403759.
Full textAbstract:
In the study, the acute effects of two different concurrent training models including high intensity interval training (HIIT) and high intensity interval functional training (HIFT) plus strength training (S) on physiological indicators (lactate and heart rate) and performance (balance and explosive power) parameters were examined in soccer players. A total of 13 moderately active young soccer players (19.92; ±1.44 years) participated in the study. In the study, body composition measurements, heart rate, lactate, explosive strength measurement and balance testing were measured. Training models (S+HIIT-S+HIFT) were applied sequentially with a crossover design. The training sessions were conducted with a three-day interval. Parameters were analyzed with SPSS24 (SPSS Inc., Chicago, IL, USA). Repeated Measure Analysis of Variance (ANOVA) was used for repeated measures and Bonferroni Correction was used for pairwise comparisons. Significance level was accepted as p
11
Stavrinou, Pinelopi S., Gregory C. Bogdanis, Christoforos D. Giannaki, Gerasimos Terzis, and Marios Hadjicharalambous. "Effects of high-intensity interval training frequency on perceptual responses and future physical activity participation." Applied Physiology, Nutrition, and Metabolism 44, no. 9 (September 2019): 952–57. http://dx.doi.org/10.1139/apnm-2018-0707.
Full textAbstract:
The effectiveness of high-intensity interval training (HIIT) in inducing positive physiological adaptations is well documented. However, its impact on perceptual responses and on future physical activity (PA) engagement is less evaluated. The present study aimed to examine the effects of HIIT frequency on perceptual responses, health-related quality of life (HRQOL), and its influence in future PA participation. Thirty-five inactive adults were randomly assigned to a control (CON) and to 2 training groups that performed HIIT (10 × 60 s cycling, ∼83% peak power output) for 2 (HIIT-2) or 3 (HIIT-3) times per week for 8 weeks. Following the HIIT intervention, exercise enjoyment, HRQOL, and the intention to implement HIIT in the future were evaluated. Eight weeks after cessation of training, follow-up evaluations of HRQOL and PA were performed. Following the intervention, both training frequencies induced high levels of enjoyment (HIIT-2: 6.0 ± 1.1, HIIT-3: 6.0 ± 1.1, scale 1–7), improved HRQOL (HIIT-2: p = 0.040; HIIT-3: p = 0.024), and reported intention to implement HIIT in the future (HIIT-3: 100%, HIIT-2: 93% of participants). At follow-up, HIIT-3 participants reported higher completion of HIIT compared with HIIT-2 and CON (p < 0.05). Both training groups sustained improved HRQOL and increased vigorous and total PA (p < 0.05). This study showed that performing HIIT either 2 or 3 times per week is an enjoyable exercise modality that promotes a sustainable increase in habitual PA levels and improves HRQOL. Moreover, the higher training frequency resulted in greater HIIT completion in the 8-week period following the cessation of training.
12
Ballesta-García, Ismael, Ignacio Martínez-González-Moro, Jacobo Á. Rubio-Arias, and María Carrasco-Poyatos. "High-Intensity Interval Circuit Training Versus Moderate-Intensity Continuous Training on Functional Ability and Body Mass Index in Middle-Aged and Older Women: A Randomized Controlled Trial." International Journal of Environmental Research and Public Health 16, no. 21 (October 30, 2019): 4205. http://dx.doi.org/10.3390/ijerph16214205.
Full textAbstract:
The literature suggests that high-intensity interval training (HIIT) is more effective than moderate-intensity continuous training (MICT) to improve functional ability. However, there is no evidence on including HIIT in a circuit programme (HIICT). Our objective was to determine what type of training (HIICT or MICT) induces greater adaptations in the functional ability and body mass index of middle-aged and older women. The study used a quasi-experimental randomized controlled trial with 54 participants (age = 67.8 ± 6.2 years). Participants were randomly allocated to HIICT (n = 18), MICT (n = 18) or a non-exercise control group (CG; n = 18). The participants in the HIICT or MICT groups trained twice a week (1 h/session) for 18 weeks. Forty-one subjects were analysed (HIICT; n = 17, MICT; n = 12, CG; n = 12). Five subjects presented adverse events during the study. Strength, gait, cardiorespiratory fitness, balance and body mass index were measured. A significant training x group interaction was found in the arm curl test, where HIICT was statistically better than MICT and CG. Likewise, HIICT was statistically better than the CG in the BMI interaction. In lower limb strength, gait/dynamic balance and cardiorespiratory fitness, both HIICT and MICT were statistically better than the CG. In conclusion, HIICT generated better adaptations in upper limb strength than MICT. Likewise, HIICT generated better adaptations in body mass index than CG. Finally, both HIICT and MICT had a similar influence on strength, cardiorespiratory fitness and gait/dynamic balance.
13
Ballesta-García, Ismael, Ignacio Martínez-González-Moro, Domingo J. Ramos-Campo, and María Carrasco-Poyatos. "High-Intensity Interval Circuit Training Versus Moderate-Intensity Continuous Training on Cardiorespiratory Fitness in Middle-Aged and Older Women: A Randomized Controlled Trial." International Journal of Environmental Research and Public Health 17, no. 5 (March 10, 2020): 1805. http://dx.doi.org/10.3390/ijerph17051805.
Full textAbstract:
High-intensity interval training (HIIT) has similar or better effects than moderate-intensity continuous training (MICT) in increasing peak oxygen consumption (VO2max), however, it has not been studied when HIIT is applied in a circuit (HIICT). The aim of this study was to compare the effects of a HIICT versus MICT on VO2max estimated (VO2max-ES), heart rate (HR) and blood pressure (BP) of middle-aged and older women. A quasi-experimental randomized controlled trial was used. Fifty-four women (67.8 ± 6.2 years) were randomized to either HIICT (n = 18), MICT (n = 18) or non-exercise control group (CG; n = 18) for 18 weeks. Participants in HIICT and MICT trained two days/week (one hour/session). Forty-one participants were assessed (HIICT; n = 17, MICT; n = 12, CG; n = 12). Five adverse events were reported. Cardiorespiratory fitness, HR and BP were measured. The tests were performed before and after the exercise intervention programs. VO2max-ES showed significant training x group interaction, in which HIICT and MICT were statistically superior to CG. Moreover, HIICT and MICT were statistically better than CG in the diastolic blood pressure after exercise (DBPex) interaction. For the systolic blood pressure after exercise (SBPex), HIICT was statistically better than CG. In conclusion, both HIICT and MICT generated adaptations in VO2max-ES and DBPex. Furthermore, only HIICT generated positive effects on the SBPex. Therefore, both training methods can be considered for use in exercise programs involving middle-aged and older women.
14
Buckley, Stephanie, Kelly Knapp, Amy Lackie, Colin Lewry, Karla Horvey, Chad Benko, Jason Trinh, and Scotty Butcher. "Multimodal high-intensity interval training increases muscle function and metabolic performance in females." Applied Physiology, Nutrition, and Metabolism 40, no. 11 (November 2015): 1157–62. http://dx.doi.org/10.1139/apnm-2015-0238.
Full textAbstract:
High-intensity interval training (HIIT) is a time-efficient method of improving aerobic and anaerobic power and capacity. In most individuals, however, HIIT using modalities such as cycling, running, and rowing does not typically result in increased muscle strength, power, or endurance. The purpose of this study is to compare the physiological outcomes of traditional HIIT using rowing (Row-HIIT) with a novel multimodal HIIT (MM-HIIT) circuit incorporating multiple modalities, including strength exercises, within an interval. Twenty-eight recreationally active women (age 24.7 ± 5.4 years) completed 6 weeks of either Row-HIIT or MM-HIIT and were tested on multiple fitness parameters. MM-HIIT and Row-HIIT resulted in similar improvements (p < 0.05 for post hoc pre- vs. post-training increases for each group) in maximal aerobic power (7% vs. 5%), anaerobic threshold (13% vs. 12%), respiratory compensation threshold (7% vs. 5%), anaerobic power (15% vs. 12%), and anaerobic capacity (18% vs. 14%). The MM-HIIT group had significant (p < 0.01 for all) increases in squat (39%), press (27%), and deadlift (18%) strength, broad jump distance (6%), and squat endurance (280%), whereas the Row-HIIT group had no increase in any muscle performance variable (p values 0.33–0.90). Post-training, 1-repetition maximum (1RM) squat (64.2 ± 13.6 vs. 45.8 ± 16.2 kg, p = 0.02), 1RM press (33.2 ± 3.8 vs. 26.0 ± 9.6 kg, p = 0.01), and squat endurance (23.9 ± 12.3 vs. 10.2 ± 5.6 reps, p < 0.01) were greater in the MM-HIIT group than in the Row-HIIT group. MM-HIIT resulted in similar aerobic and anaerobic adaptations but greater muscle performance increases than Row-HIIT in recreationally active women.
15
Youssef, Layale, Jordan Granet, Vincent Marcangeli, Maude Dulac, Guy Hajj-Boutros, Olivier Reynaud, Fanny Buckinx, et al. "Clinical and Biological Adaptations in Obese Older Adults Following 12-Weeks of High-Intensity Interval Training or Moderate-Intensity Continuous Training." Healthcare 10, no. 7 (July 20, 2022): 1346. http://dx.doi.org/10.3390/healthcare10071346.
Full textAbstract:
Sarcopenia and obesity are considered a double health burden. Therefore, the implementation of effective strategies is needed to improve the quality of life of older obese individuals. The aim of this study was to compare the impact of high-intensity interval training (HIIT) and moderate-intensity continuous training (MICT) on functional capacities, muscle function, body composition and blood biomarkers in obese older adults. Adipose tissue gene expression and markers of muscle mitochondrial content and quality control involved in exercise adaptations were also investigated. Sixty-eight participants performed either HIIT (n = 34) on an elliptical trainer or MICT (n = 34) on a treadmill, three times per week for 12 weeks. HIIT produced significantly higher benefits on some physical parameters (six-minute walking test (HIIT: +12.4% vs. MICT: +5.2%); step test (HIIT: +17.02% vs. MICT: +5.9%); ten-repetition chair test (HIIT: −17.04% vs. MICT: −4.7%)). Although both HIIT and MICT led to an improvement in lower limb power (HIIT: +25.2% vs. MICT: +20.4%), only MICT led to higher improvement in lower limb muscle strength (HIIT: +4.3% vs. MICT: +23.2%). HIIT was more beneficial for increasing total lean body mass (HIIT: +1.58% vs. MICT: −0.81%), while MICT was more effective for decreasing relative gynoid fat mass (HIIT: −1.09% vs. MICT: −4.20%). Regarding adipose tissue gene expression, a significant change was observed for cell death-inducing DFFA (DNA fragmentation factor-alpha)-like effector A (CIDEA) in the HIIT group (A.U; HIIT at T0: 32.10 ± 39.37 vs. HIIT at T12: 48.2 ± 59.2). Mitochondrial transcription factor A (TFAM) content, a marker of mitochondrial biogenesis, increased significantly following HIIT (+36.2%) and MICT (+57.2%). A significant increase was observed in the HIIT group for Translocase of Outer Membrane 20 (TOM20; +54.1%; marker of mitochondrial content), Mitofusin-2 (MFN2; +71.6%; marker of mitochondrial fusion) and Parkin RBR E3 Ubiquitin Protein Ligase (PARKIN; +42.3%; marker of mitophagy). Overall, our results indicate that even though MICT (walking on treadmill) and HIIT (on an elliptical) are effective intervention strategies in obese older adults, HIIT appears to have slightly more beneficial effects. More specifically, HIIT led to higher improvements than MICT on functional capacities, lean mass and skeletal muscle markers of mitochondrial content, fusion, and mitophagy. Thus, MICT but also HIIT (time-efficient training) could be recommended as exercise modalities for obese older adults to maintain or improve mobility, health and quality of life.
16
Stavrinou, Pinelopi, Gregory Bogdanis, Christoforos Giannaki, Gerasimos Terzis, and Marios Hadjicharalambous. "High-intensity Interval Training Frequency: Cardiometabolic Effects and Quality of Life." International Journal of Sports Medicine 39, no. 03 (February 2018): 210–17. http://dx.doi.org/10.1055/s-0043-125074.
Full textAbstract:
AbstractThe effects of high intensity interval training (HIIT) frequency on cardiometabolic health and quality of life were examined in 35 healthy inactive adults (age: 31.7±2.6 yrs, VO2peak: 32.7±7.4 ml·kg−1 ·min−1). Participants were randomly assigned to a control (CON) and two training groups, which performed 10×60-s cycling at ~83% of peak power, two (HIIT-2) or three times per week (HIIT-3) for eight weeks. Compared with CON, both training regimes resulted in similar improvements in VO2peak (HIIT-2: 10.8%, p=0.048, HIIT-3: 13.6%, p=0.017), waist circumference (HIIT-2: -1.4 cm, p=0.048, HIIT-3: -2.4 cm, p=0.028), thigh cross-sectional area (HIIT-2: 11.4 cm2, p=0.001, HIIT-3: 9.3 cm2, p=0.001) and the physical health component of quality of life (HIIT-2: 8.4, p=0.001, HIIT-3: 12.2, p=0.001). However, HIIT-3 conferred additional health-related benefits by reducing total body and trunk fat percentage (p<0.05, compared with CON), total cholesterol and low-density lipoprotein-cholesterol (p<0.02, compared with CON) and by improving the mental component of quality of life (p=0.045, compared with CON). In conclusion, performing HIIT only twice per week is effective in promoting cardiometabolic health-related adaptations and quality of life in inactive adults. However, higher HIIT frequency is required for an effect on fat deposits, cholesterol and mental component of well-being.
17
Neves, Letícia Nascimento Santos, Victor Hugo Gasparini-Neto, Richard Diego Leite, and Luciana Carletti. "Acute Cardiopulmonary Response of High-Intensity Interval Training with Elastic Resistance vs. High-Intensity Interval Training on a Treadmill in Healthy Adults." International Journal of Environmental Research and Public Health 20, no. 12 (June 6, 2023): 6061. http://dx.doi.org/10.3390/ijerph20126061.
Full textAbstract:
This study aims to describe and compare cardiopulmonary and subjective responses during high-intensity interval training with elastic resistance (EL-HIIT) and traditional high-intensity interval training (HIIT) sessions. Twenty-two healthy adults (27.6 ± 4.4 years) performed an EL-HIIT and a HIIT protocol consisting of 10 × 1 min at ~85% V·O2max prescribed by cardiopulmonary-specific tests. Pulmonary parameters, heart rate (HR), blood lactate, and rate of perceived exertion (RPE) were measured during exercise. Paired t-test and Cohen’s d effect size were used to compare peak and average values. Two-way repeated measures ANOVA and mixed model with Bonferroni’s post hoc test were used to compare each bout during the session. The EL-HIIT session showed higher peak and average values of HR, ventilation (V·E), relative and absolute oxygen uptake (V·O2), carbon dioxide production (V·CO2), and RPE than HIIT (p < 0.05). The effect size (ES) comparing HIIT and EL-HIIT was large for HR, V·E, and lactate (≥0.8) in peak values. Comparing each bout between HIIT and EL-HIIT, no difference was found in peak values (p > 0.05) during the session (excluding baseline, warm-up, and recovery). EL-HIIT presented a more pronounced cardiopulmonary and subjective response than HIIT.
18
Faelli, Emanuela, Marco Panascì, Vittoria Ferrando, Roberto Codella, Ambra Bisio, and Piero Ruggeri. "High-Intensity Interval Training for Rowing: Acute Responses in National-Level Adolescent Males." International Journal of Environmental Research and Public Health 19, no. 13 (July 2, 2022): 8132. http://dx.doi.org/10.3390/ijerph19138132.
Full textAbstract:
Background: This study investigated the acute effects of two high-intensity interval training (HIIT) programs on physiological responses and internal workload. Methods: Ten national-level adolescent male rowers (age: 15.7 ± 0.2 years; maximal oxygen uptake (VO2max): 60.11 ± 1.91 mL∙kg−1∙min−1) performed two HIIT testing sessions: short (S-HIIT) and long (L-HIIT). In S-HIIT, the rowers performed 25 reps of 30 s at 100% power at VO2max (Pmax) interspersed with 30 s at P@20% Pmax; whereas in L-HIIT, the rowers executed 4 × 4 min at P@90% Pmax interspersed with 3 min of active recovery (P@30% Pmax). Results: The acute physiological responses and internal workload were evaluated. The significance level was set at p < 0.05. Oxygen uptake (VO2) (p < 0.05), time spent per session at ~90% VO2max (p < 0.01), total VO2 consumed (p < 0.01), total distance (p < 0.001), the rating of perceived exertion, blood lactate concentration and heart rate (always p < 0.0001) were significantly higher in L-HIIT than in S-HIIT. However, peak power output was significantly lower in L-HIIT compared to S-HIIT (p < 0.0001). Conclusion: In adolescent rowers, both HIIT tests stimulated aerobic and anaerobic systems. The L-HIIT test was associated with acute cardiorespiratory and metabolic responses, as well as higher perceptions of effort than the S-HIIT test. In adolescent rowers, HIIT emerges as an asset and could be introduced into a traditional in-season, moderate-intensity and endurance-based rowing program once a week.
19
Gómez, Elena Muñoz, Hady Atef, Shereen Hamed Elsayed, Hoda M. Zakaria, Miguel Pérez Navarro, and Elena Marqués Sulé. "Effects of high-intensity interval training with an eccentric hamstring exercise program in futsal players: A randomized controlled trial." Medicine 102, no. 31 (August 4, 2023): e34626. http://dx.doi.org/10.1097/md.0000000000034626.
Full textAbstract:
Background: Physiotherapy protocols based on high-intensity interval training (HIIT) or eccentric hamstring exercises like Nordic Curl (NC) have been scarcely studied in futsal players. The objective of this study was to compare the effectiveness of a HIIT combined with an NC exercise program versus a HIIT-only program in futsal players. Methods: Twenty-one futsal players were divided into (1) HIIT + NC group (n = 11, mean age = 21.55 [4.25]); and (2) HIIT group (n = 10, mean age = 20.90 [1.29]). The HIIT + NC group performed a HIIT circuit combined with 3 sets of 10 NC repetitions for 4 weeks, while the HIIT group performed the same protocol without NC exercise. Body mass index, intermittent work performance, vertical jump performance without and with arms, isometric strength of quadriceps and hamstrings, and the isometric hamstrings/quadriceps (H/Q) ratio, were assessed before and after the interventions. Results: The HIIT + NC group and the HIIT group showed a significant improvement in intermittent work performance after the intervention (P = .04 and P = .01, respectively). Also, both groups showed a trend of increasing quadriceps and hamstring isometric strength, although no significant changes were found (P > .05). In addition, neither the HIIT + NC protocol nor the HIIT protocol was sufficient to yield changes in body mass index nor to improve the vertical jump performance (P > .05). Conclusion: Both an isolated HIIT protocol and HIIT in combination with NC exercise improved intermittent work performance in futsal players. The present study’s findings may guide futsal players’ physical preparation and injury prevention programs.
20
Reljic, Dejan, Nilas Zieseniss, Hans J. Herrmann, Markus F. Neurath, and Yurdagül Zopf. "Protein Supplementation Does Not Maximize Adaptations to Low-Volume High-Intensity Interval Training in Sedentary, Healthy Adults: A Placebo-Controlled Double-Blind Randomized Study." Nutrients 14, no. 19 (September 20, 2022): 3883. http://dx.doi.org/10.3390/nu14193883.
Full textAbstract:
There is ample evidence that specific nutritional strategies can enhance adaptions to resistance and endurance training. However, it is still unclear whether post-session protein supplementation may increase the effects of low-volume high-intensity interval training (LOW-HIIT). We examined the impact of LOW-HIIT combined with protein vs. placebo supplementation on cardiometabolic health indices in sedentary healthy individuals. Forty-seven participants (31.1 ± 8.0 yrs) performed cycle ergometer LOW-HIIT (5–10x1 min at 80–95% maximum heart rate) for eight weeks and randomly received double-blinded 40 g of whey protein (PRO-HIIT, N = 24) or an isocaloric placebo (maltodextrin, PLA-HIIT, N = 23) after each session. The maximum oxygen uptake (VO2max, primary outcome) and several secondary cardiometabolic outcomes were determined pre-/post-intervention. VO2max increased in PRO-HIIT (+2.8 mL/kg/min, p = 0.003) and PLA-HIIT (+3.5 mL/kg/min, p < 0.001). Systolic and diastolic blood pressure decreased in PRO-HIIT (−7/3 mmHg, p < 0.05) and PLA-HIIT (−8/5 mmHg, p < 0.001). Gamma glutamyl transferase (−2 U/L, p = 0.003) decreased in PRO-HIIT and alanine aminotransferase (−3 U/L, p = 0.014) in PLA-HIIT. There were no significant between-group differences in any of the outcome changes. In conclusion, LOW-HIIT improved VO2max and other cardiometabolic markers irrespective of the supplementation condition. Post-session protein supplementation does not seem to provide any additional benefit to LOW-HIIT in improving cardiometabolic health in sedentary healthy individuals.
21
Evangelista, Alexandre Lopes, Mario Luis Biffi Pozzi, Leticia Menezes Santos, Bruna Massaroto Barros, Cleison Rodrigues de Souza, Victor Machado Reis, and Danilo Sales Bocalini. "ENERGY EXPENDITURE IN HIIT WHOLE BODY ASSOCIATED WITH ELECTROMYOSTIMULATION." Revista Brasileira de Medicina do Esporte 27, no. 6 (December 2021): 568–72. http://dx.doi.org/10.1590/1517-8692202127062021_0003.
Full textAbstract:
ABSTRACT Introduction: The use of whole body electromyostimulation (WB-EMS) has been shown to be an efficient method for inducing significant improvements in muscle strength and performance outcomes. Hypothetically, WB-EMS had been considered an enhancer of energy expenditure in the session, but this remains unclear. Objective: In view of the lack of information, this study aims to evaluate the energy expenditure of WB-EMS associated with whole body High-Intensity Interval Training (HIIT). Methods: Fourteen male participants were submitted into two randomized exercise sessions: HIIT (whole body weight exercises without WB-EMS) and HIIT+WB-EMS (whole body weight exercises associated with WB-EMS). For both exercise conditions, the subjects performed whole body HIIT according to the following protocol: 3 minutes of warm-up followed by 4 exercises (30 seconds of stimulus) organized in 2 blocks, with 3 sets in each exercise, a rest period of 15 seconds between sets, and 180 seconds between blocks. The following exercises were performed: jumping jacks, squat and thrusts, burpees, and spider plank. Results: Significant differences were found in the absolute VO2 (HIIT:2.18±0.34, HIIT+WB-EMS:2.32±0.36 L.min−1) and relative VO2 (HIIT:26.30±3.77, HIIT+WB-EMS:28.02± 3.74 ml.kg.min−1), MET (HIIT:7.51±1.07, HIIT+WB-EMS:8.00±1.07), lactate concentration (HIIT:11.59±2.16, HIIT+WB-EMS: 12.64±1.99 mmol.L−1) and total energy expenditure (HIIT: 249.6± 45.04 Kcal, HIIT+ WB-EMS: 268.9±40.67 Kcal; 7.46 ± 5.31%). Conclusion: Our data indicate that the use of WB-EMS associated with HIIT generated a slightly higher metabolic demand than that of the control. However, the absolute differences do not allow us to indicate the superiority of WB-EMS, and future trials should be designed to determine the long-term effects.
22
Bagherinia, Maryam, Bahram Abedi, and Hosein Fatolahi. "The effect of eight weeks of high-intensity interval training on the expression of mir-126, EMAP-II, and levels of TGF-β in the heart tissue of young rats with type 2 diabetes." Journal of Shahrekord University of Medical Sciences 26, no. 1 (December 23, 2023): 20–24. http://dx.doi.org/10.34172/jsums.845.
Full textAbstract:
Background and aims: Diabetes affects some cardiac angiogenic and antiangiogenic markers. Thus, the aim of this study was to investigate the effect of eight weeks of high-intensity interval training (HIIT) on mir-126, endothelial monocyte-activating polypeptide II (EMAP-II), and transforming growth factor beta (TGF-β) in young rats with type 2 diabetes (T2D). Methods: The statistical population of this experimental study included young rats (8 weeks old) with T2D. In this research, 24 young rats (8 weeks old) were divided into healthy+HIIT, diabetic+HIIT, and healthy control groups. The enzyme-linked immunosorbent assay method was used to measure TGF-β and the real-time polymerase chain reaction for mir-126 and EMAP-II. A one-way analysis of variance and the least significant difference post hoc test were used to compare the two groups. Results: The results showed diabetes+HIIT and healthy+HIIT had more mir-126 compared to healthy control (P=0.001). Healthy+HIIT, in comparison to diabetes+HIIT, had higher mir-126 expression (P=0.001). In addition, diabetes+HIIT, compared to the healthy control, had a higher EMAP-II expression (P=0.006). On the other hand, healthy+HIIT had lower EMAP-II in comparison to healthy control (P=0.001). Healthy+HIIT had a lower EMAP-II compared to diabetes+HIIT (P=0.001). Diabetes+HIIT, in comparison to the healthy control, had higher TGF-β levels (P=0.005). However, healthy+HIIT, compared to healthy control, had a lower expression of TGF-β (P=0.001). Finally, the healthy+HIIT groups, compared to the diabetes+HIIT group, had a lower TGF-β expression (P=0.001). Conclusion: Interval exercise could increase angiogenesis in diabetic samples through the increase of mir-126 and the reduction of TGF-β1 and EMAP-II.
23
Ahmadabadi, Fereshteh, Marziyeh Saghebjoo, Chun-Jung Huang, Iman Saffari, and Mahmoud Zardast. "The effects of high-intensity interval training and saffron aqueous extract supplementation on alterations of body weight and apoptotic indices in skeletal muscle of 4T1 breast cancer-bearing mice with cachexia." Applied Physiology, Nutrition, and Metabolism 45, no. 5 (May 2020): 555–63. http://dx.doi.org/10.1139/apnm-2019-0352.
Full textAbstract:
Exercise training and antioxidant supplementation may improve unintentional weight loss and programmed cell death associated with cancer cachexia. The aim of this study was to examine the alterations of body weight and apoptotic indices in skeletal muscle of 4T1 breast cancer-bearing mice with cachexia following 4 weeks of high-intensity interval training (HIIT) and saffron aqueous extract (SAE) supplementation. Female BALB/c mice following induction of breast cancer were divided into (i) controls, (ii) HIIT, (iii) SAE, (iv) HIIT+SAE, and (v) sham groups. Mice were euthanized and gastrocnemius muscle was collected after intervention. The control group elicited a significant weight reduction during third and fourth weeks of tumor injection, while other treatments such as HIIT and SAE, but not HIIT+SAE, showed that they counteracted this adverse event. Furthermore, HIIT and SAE treatments (not HIIT+SAE) demonstrated reduced caspase-3 and Bax levels compared with the control group. The level of Bcl-2 was elevated following both HIIT and SAE treatments compared with the control group. Finally, the ratio of Bcl-2 to Bax was significantly higher in both HIIT and SAE groups, but was lower in HIIT+SAE group compared with sham group. It is likely that either HIIT or SAE intervention alone (not HIIT+SAE) represents a readily applicable approach in the regulation of muscle wasting and apoptosis in cancer cachexia. Novelty HIIT is associated with a reduced risk of cancer-related muscle wasting. SAE enhances the improvement of muscle loss and apoptotic indices. Combination of HIIT and SAE does not improve cancer-related loss of muscle mass and mediate apoptotic activation.
24
Du, Litao, Xianliang Zhang, Ke Chen, Xiaoyu Ren, Si Chen, and Qiang He. "Effect of High-Intensity Interval Training on Physical Health in Coronary Artery Disease Patients: A Meta-Analysis of Randomized Controlled Trials." Journal of Cardiovascular Development and Disease 8, no. 11 (November 18, 2021): 158. http://dx.doi.org/10.3390/jcdd8110158.
Full textAbstract:
The effects of exercise-based cardiac rehabilitation (CR) on physical health in coronary artery disease (CAD) patients has long been established, while the optimal exercise mode remains to be determined. This meta-analysis compared the efficacy of high-intensity interval training (HIIT) versus moderate-intensity continuous training (MICT) in CAD patients. Databases were searched up to December 2020. Twenty-five studies with 1272 participants were analyzed. The results showed that both HIIT and MICT induced significant VO2peak improvement with a 4.52 mL/kg/min (p < 0.01) and 2.36 mL/kg/min (p < 0.01), respectively. Additionally, a larger improvement of VO2peak (1.92 mL/kg/min, p < 0.01) was observed in HIIT over MICT. HIIT with medium and long intervals, higher work/rest ratio induced larger VO2peak improvement than the compared subgroup. Interestingly, non-isocaloric exercise protocols induced larger VO2peak improvement compared with isocaloric protocols. In addition, both HIIT and MICT significantly increased anaerobic threshold and peak power with HIIT superior to MICT. No significant different changes were observed in blood pressure after HIIT or MICT intervention, however when HIIT was compared with MICT, MICT seems superior to HIIT in reducing systolic blood pressure (−3.61 mmHg, p < 0.01) and diastolic blood pressure (−2.37 mmHg, p < 0.01). Although, HIIT and MICT induced significant improvement of most other parameters, like HRrest, HRpeak, left ventricular ejection fraction (LVEF), quality of life (QoL), no significant differences were noted between groups. This meta-analysis suggested that HIIT is superior to MICT in increasing VO2peak, anaerobic threshold, peak power in CAD patients. Additionally, the efficacy of HIIT over MICT in improving VO2peaks was influenced by HIIT intervals, work/rest ratio and total caloric consumption. Both HIIT and MICT did not significantly influence resting BP, however, MICT seemed to be more effective in reducing BP than HIIT. HIIT and MICT equally significantly influenced HRrest, HRpeak, HRR1min, OUES, LVEF%, QoL.
25
García-Suárez, Patricia Concepción, Ermilo Canton-Martínez, Iván Rentería, Barbara Moura Antunes, Juan Pablo Machado-Parra, Jorge Alberto Aburto-Corona, Luis Mario Gómez-Miranda, and Alberto Jiménez-Maldonado. "Remote, Whole-Body Interval Training Improves Muscular Endurance and Cardiac Autonomic Control in Young Adults." International Journal of Environmental Research and Public Health 19, no. 21 (October 26, 2022): 13897. http://dx.doi.org/10.3390/ijerph192113897.
Full textAbstract:
High-intensity interval training (HIIT) is an exercise modality acknowledged to maintain physical fitness with more engagement in an active lifestyle compared with other traditional exercise models. Nevertheless, its effects on cardiac control and physical performance in an online-guided setting are not yet clarified. The present work assessed physical fitness and heart rate variability (HRV) before and after an online, home-based HIIT program in college-age students while pandemic lockdowns were in effect. Twenty university students (age: 21.9 ± 2.4 years.) that were solely enrolled in online classes were distributed into three groups: control—CON-(n = 6), 14 min of HIIT—HIIT-14-(n = 8), and 21 min of HIIT—HIIT-21-(n = 6). A maximal push-up test was employed to assess muscular endurance and performance, and resting HRV signals were collected with wireless heart rate monitors and were processed in Kubios HRV Std. (Kubios Oy, Finland). There was an increase in total push-up capacity compared to CON (p < 0.05 HIIT-21 vs. CON; p < 0.001 HIIT-14 vs. CON) after 8 weeks. A significant interaction was observed in high-frequency and low-frequency spectra ratios after the HIIT-21 intervention (p < 0.05). The current work demonstrated that either short- or mid-volume online, whole-body HIIT improves muscle strength, whereas mid-volume HIIT (HIIT-21) was the only intervention that developed a sympathovagal adaptation. This study showed promising results on muscular endurance and cardiac autonomic modulation through whole-body HIIT practice at home.
26
Fleming, Abby R., Nic Martinez, Larry H. Collins, Candi D. Ashley, Maureen Chiodini, Brian J. Waddell, and Marcus W. Kilpatrick. "Psychological Responses to High-Intensity Interval Training: A Comparison of Graded Walking and Ungraded Running at Equivalent Metabolic Loads." Journal of Sport and Exercise Psychology 42, no. 1 (February 1, 2020): 70–81. http://dx.doi.org/10.1123/jsep.2019-0200.
Full textAbstract:
High-intensity interval training (HIIT) is highly beneficial for health and fitness and is well tolerated. Treadmill-based HIIT normally includes running interspersed with walking. The purpose of this study was to compare ungraded running and graded walking HIIT on perceived exertion, affective valence, and enjoyment. Thirty-four active, healthy adults completed maximal testing and two 20-min HIIT trials alternating between 85% of VO2peak and a comfortable walking speed. Affective valence, enjoyment, and perceived exertion, both overall (ratings of perceived exertion [RPE]-O) and legs only (RPE-L), were measured. RPE-O and affective valence were similar between HIIT trials (p > .05), RPE-L was higher for walk HIIT (p < .05), and enjoyment was higher for run HIIT (p < .05). Findings indicate that both walk and run HIIT produce exertion, affective, and enjoyment responses that are positive and possibly supportive of exercise behavior. Walk HIIT may be desirable for individuals who are unable or do not want to run.
27
Hooshmand Moghadam, Babak, Fateme Golestani, Reza Bagheri, Neda Cheraghloo, Mozhgan Eskandari, Alexei Wong, Michael Nordvall, Katsuhiko Suzuki, and Parisa Pournemati. "The Effects of High-Intensity Interval Training vs. Moderate-Intensity Continuous Training on Inflammatory Markers, Body Composition, and Physical Fitness in Overweight/Obese Survivors of Breast Cancer: A Randomized Controlled Clinical Trial." Cancers 13, no. 17 (August 30, 2021): 4386. http://dx.doi.org/10.3390/cancers13174386.
Full textAbstract:
Background: Chronic inflammation associated with breast cancer (BC) poses a major challenge in care management and may be ameliorated by physical activity. This randomized controlled trial assessed the effects of a 12-week high-intensity interval training (HIIT) and moderate-intensity continuous training (MICT) on inflammatory markers, body composition, and physical fitness in BC survivors (BCS). Methods: Forty BCS (age = 57 ± 1 years; body mass [BM] = 74.8 ± 1.5 kg; VO2peak = 20.8 ± 2.1 mL·kg−1·min−1) were randomly assigned to three groups: HIIT (n = 15), MICT (n = 15), or control (CON; n = 15). The intervention groups (HIIT and MICT) performed their respective exercise protocols on a cycle ergometer 3 days/week for 12 weeks while the CON group maintained their current lifestyle. Baseline and post-intervention assessments included body composition (BM, fat mass (FM), lean mass (LM)), physical fitness (VO2peak, lower body strength (LBS), upper body strength (UBS)), and serum concentrations of tumor necrosis factor-alpha (TNF-α), interleukin-6 (IL-6), interleukin-8 (IL-8), interleukin-10 (IL-10), leptin, and adiponectin. Results: Both intervention groups significantly (p < 0.05) decreased BM (HIIT = −1.8 kg, MICT = −0.91 kg), FM (HIIT = −0.81 kg, MICT = −0.18 kg), TNF-α (HIIT = −1.84 pg/mL, MICT = −0.99 pg/mL), IL-6 (HIIT = −0.71 pg/mL, MICT = −0.36 pg/mL), leptin (HIIT = −0.35 pg/mL, MICT = −0.16 pg/mL) and increased VO2peak (HIIT = 0.95 mL·kg−1·min−1, MICT = 0.67 mL·kg−1·min−1), LBS (HIIT = 2.84 kg, MICT = 1.53 kg), UBS (HIIT = 0.53 kg, MICT = 0.53 kg), IL-10 (HIIT = 0.63 pg/mL, MICT = 0.38 pg/mL), and adiponectin (HIIT = 0.23 ng/mL, MICT = 0.1 ng/mL) compared to baseline. The changes in BM, FM, TNF-α, leptin, and LBS were significantly greater in HIIT compared to all other groups. Conclusions: Our findings indicate that compared to the often-recommended MICT, HIIT may be a more beneficial exercise therapy for the improvement of inflammation, body composition and LBS in BCS; and consequently, merits long-term study
28
Rengers, Timothy A., Samantha C. Orr, Charles R. C. Marks, Tamara Hew-Butler, Myung D. Choi, Scotty J. Butcher, Dorin Drignei, and Elise C. Brown. "Effects of High-Intensity Interval Training Protocols on Liver Enzymes and Wellness in Women." Journal of Sports Medicine 2021 (April 30, 2021): 1–10. http://dx.doi.org/10.1155/2021/5554597.
Full textAbstract:
Background. Single-modality, high-intensity interval training (HIIT) using traditional cardiorespiratory exercise selection has been found to provide similar and sometimes superior cardiometabolic effects compared with moderate-intensity continuous training. However, little is known regarding the cardiometabolic and psychosocial effects of HIIT using resistance training modalities. Therefore, this study aims to compare the effects of HIIT using rowing (R-HIIT) and multimodal HIIT (MM-HIIT) using resistance training on liver enzymes, cardiometabolic risk factors, and psychosocial outcomes. Method. Recreationally active females with a body mass index <30 kg/m2 (N = 16, 23.0 ± 5.9 years) were randomized into a MM-HIIT or R-HIIT group and completed a 12-week HIIT intervention (ClinicalTrials.gov registration number: https://clinicaltrials.gov/ct2/show/NCT03093441) using principles of social cognitive theory (SCT). Participants completed pre- and postintervention measurements on anthropometrics, resting heart rate, blood pressure, blood measures (lipids, liver enzymes, and glucose), exercise self-efficacy, and perceived wellness. Analysis of covariance was used to examine differences in postintervention measures between groups after controlling for baseline values, waist circumference, and waist-to-height ratio. Results. R-HIIT group had significantly decreased alanine aminotransferase (mean difference = 13.16, P = 0.013 , effect size (ES) = 0.44, confidence interval (CI) = 3.40 to 22.92) and aspartate aminotransferase (mean difference = 10.79, P = 0.024 , ES = 0.38, CI = 1.67 to 19.90) levels compared with the M-HIIT group, and the whole group had improved wellness scores (14.72 ± 2.6 to 16.89 ± 2.76, P = 0.002 ). Conclusion. R-HIIT may be an effective preventative method for improving liver health in females without obesity. When using principles of SCT, HIIT may enhance overall well-being.
29
Zeng, Zhen, Patrick Jendricke, Christoph Centner, Helen Storck, Albert Gollhofer, and Daniel König. "Acute Effects of Oatmeal on Exercise-Induced Reactive Oxygen Species Production Following High-Intensity Interval Training in Women: A Randomized Controlled Trial." Antioxidants 10, no. 1 (December 22, 2020): 3. http://dx.doi.org/10.3390/antiox10010003.
Full textAbstract:
High-intensity interval training (HIIT) has been demonstrated to increase the generation of reactive oxygen species (ROS). Therefore, strategies to mitigate excessive ROS productions could be useful to reduce the negative consequences of oxidative damage for health, as well as for physical, performances. The aim of this study was to investigate the acute effects of pre-exercise oatmeal consumption on exercise-induced ROS generation in young, healthy women. Thirty-four participants were randomly allocated in one of two groups: oatmeal prior to HIIT (oatmeal; n = 17) or HIIT alone (control; n = 17). Blood samples were obtained at pre-meal, pre-HIIT, immediately post-HIIT, and 15 min after HIIT. Electron paramagnetic resonance (EPR) spectroscopy was used to analyze the concentrations of ROS in the capillary blood. In addition, the blood glucose and blood lactate levels were measured. Immediately post-HIIT, the ROS generation in the oatmeal group was significantly lower in contrast to the control group (p < 0.05). A significant interaction effect of time × meal (p < 0.05; η2 = 0.234) was detected from the pre-meal to 15 post-HIIT for ROS production. Moreover, significant differences in the blood glucose levels were observed between the groups at pre-HIIT and immediately post-HIIT (p < 0.05). In conclusion, the consumption of oatmeal before HIIT may mitigate exercise-induced ROS production.
30
Martin-Smith, Rhona, Ashley Cox, Duncan S. Buchan, Julien S. Baker, Fergal Grace, and Nicholas Sculthorpe. "High Intensity Interval Training (HIIT) Improves Cardiorespiratory Fitness (CRF) in Healthy, Overweight and Obese Adolescents: A Systematic Review and Meta-Analysis of Controlled Studies." International Journal of Environmental Research and Public Health 17, no. 8 (April 24, 2020): 2955. http://dx.doi.org/10.3390/ijerph17082955.
Full textAbstract:
Background: High Intensity Interval Training (HIIT) is a sustainable and effective method for improving Cardiorespiratory Fitness (CRF) in adolescents. HIIT is proven to produce equal or greater improvements in CRF when compared to moderate intensity continuous exercise (MICE) in adolescents. Methods: The studies included were considered eligible if: (1) Participants were adolescents (11–18 years old); (2) Examined changes in CRF measured either directly or indirectly; (3) Included a non-exercising control group or MICE comparison group; (4) Participants were matched at enrolment; (5) Reported HIIT protocol information; (6) Provided HIIT intensity. A meta-analysis was conducted to determine the effect of HIIT on CRF. Meta-regression and moderator analyses were performed out to quantitatively examine moderators of protocol design on CRF improvements. Results: HIIT displays a moderate effect to improve CRF (g = 0.86, 95% CI 0.518–1.106, p < 0.001). Neither study duration (weeks), nor total or weekly accumulated HIIT volume (min) displayed any significant moderation effect on pooled improvement on CRF (p > 0.05). Conclusions: HIIT is an effective method to improve CRF in adolescents, irrespective of body composition. Notably, meta regression analysis identified that prolonged high volume HIIT programs are similarly effective to short term low volume HIIT programs. This becomes of particular interest for those involved in school curricula, where short HIIT exercise may provide a pragmatic adjunct to the health benefits of Physical Education (PE) lessons.
31
Kadkhoda, Zeynab, Rambod Khajeie, Ameneh Barjaste Yazdi, Akbar Safipor Afshar, and Mehdi Zarei. "Effect of Eight Weeks of High-Intensity Interval Training Along With Purslane Consumption on Lipid Profile of Rats with Non-alcoholic Fatty Liver Disease." Complementary Medicine Journal 12, no. 3 (October 1, 2022): 270–83. http://dx.doi.org/10.32598/cmja.12.3.1172.1.
Full textAbstract:
Objective Having physical activity and proper nutrition are very important for preventing Non-Alcoholic Fatty Liver Disease (NAFLD). The present study aims to investigate the effect of eight weeks of high-intensity interval training (HIIT) along with purslane (Portulaca Oleracea) supplementation on the lipid profile of rats with NAFLD Methods In this experimental study, 25 male Wistar rats randomly divided into five groups: healthy control, NAFLD control, supplement, HIIT, and HIIT + supplement. To induce NAFLD, rats received a high-fat diet for 12 weeks. The HIIT was performed for eight weeks, five sessions per week. Plasma levels of High-Density Lipoprotein (HDL), Low-Density Lipoprotein (LDL), Triglyceride (TG) and Total Cholesterol (TC) were measured. One-way ANOVA and Tukey’s post-hoc test were used to analyze the data. Results Plasma level of TG in the HIIT + supplement group were significantly lower than in the NAFLD control group (P=0.035). The TC level in the supplement (P=0.013) and HIIT +supplement (P=0.001) groups was significantly lower than in the NAFLD control group. The HDL level in the HIIT + supplement group was significantly higher compared to healthy control (P=0.021), NAFLD control (P=0.001), HIIT (P=0.006) and supplement (P=0.018) groups. The LDL level in the HIIT (P=0.01), supplement (P=0.001) and HIIT + supplement (P=0.001) groups was significantly lower than in the NAFLD control group. Conclusion It seems that HIIT combined with purslane supplementation can have better effect compared to HIIT and purslane supplementation alone; therefore, this method can be used as a complementary therapy in people with NAFLD.
32
Silva, Lucas Raphael Bento, Paulo Roberto Viana Gentil, Thomas Beltrame, Marco Antônio Basso Filho, Fagner Medeiros Alves, Maria Sebastiana Silva, Gustavo Rodrigues Pedrino, Rodrigo Ramirez-Campillo, Victor Coswig, and Ana Cristina Silva Rebelo. "Exponential model for analysis of heart rate responses and autonomic cardiac modulation during different intensities of physical exercise." Royal Society Open Science 6, no. 10 (October 2019): 190639. http://dx.doi.org/10.1098/rsos.190639.
Full textAbstract:
The aim of this study was to compare the heart rate (HR) dynamics and variability before and after high-intensity interval training (HIIT) and moderate-intensity continuous training (MICT) protocols with workloads based on treadmill workload at which maximal oxygen uptake was achieved ( WL V ˙ O 2 max ) . Ten participants performed cardiopulmonary exercise testing (CPET) to obtain oxygen uptake ( WL V ˙ O 2 max ) . All training protocols were performed on a treadmill, with 0% grade, and had similar total distance. The MICT was composed by 21 min at 70% of WL V ˙ O 2 max . The first HIIT protocol (HIIT-30 : 30) was composed by 29 repetitions of 30 s at 100% of s V ˙ O 2 max and the second HIIT protocol (HIIT-4 : 3) was composed by three repetitions of 4 min at 90% of WL V ˙ O 2 max . Before, during and after each training protocol, HR dynamics and variability (HRV) were analysed by standard kinetics and linear (time and frequency domains). The repeated measures analysis of variance indicated that the HR dynamics, which characterizes the speed of HR during the rest to exercise transition, was statistically ( p < 0.05) slower during MICT in comparison to both HIIT protocols. The HRV analysis, which characterizes the cardiac autonomic modulation during the exercise recovery, was statistically higher in HIIT-4 : 3 in comparison to MICT and HIIT-30 : 30 protocols ( p < 0.005 and p = 0.012, respectively), suggesting that the HIIT-4 : 3 induced higher sympathetic and lower parasympathetic modulation during exercise in comparison to the other training protocols. In conclusion, HIIT-4 : 3 demonstrated post-exercise sympathetic hyperactivity and a higher HRpeak, while the HIIT-30 : 30 and MICT resulted in better HRV and HR in the exercise-recovery transition. The cardiac autonomic balance increased in HIIT-30 : 30 while HIIT-4 : 3 induced sympathetic hyperactivity and cardiac overload.
33
Westmacott, Ailsa, Nilihan E. M. Sanal-Hayes, Marie McLaughlin, Jacqueline L. Mair, and Lawrence D. Hayes. "High-Intensity Interval Training (HIIT) in Hypoxia Improves Maximal Aerobic Capacity More Than HIIT in Normoxia: A Systematic Review, Meta-Analysis, and Meta-Regression." International Journal of Environmental Research and Public Health 19, no. 21 (November 1, 2022): 14261. http://dx.doi.org/10.3390/ijerph192114261.
Full textAbstract:
The present study aimed to determine the effect of high intensity interval training (HIIT) in hypoxia on maximal oxygen uptake (VO2max) compared with HIIT in normoxia with a Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA)-accordant meta-analysis and meta-regression. Studies which measured VO2max following a minimum of 2 weeks intervention featuring HIIT in hypoxia versus HIIT in normoxia were included. From 119 originally identified titles, nine studies were included (n = 194 participants). Meta-analysis was conducted on change in (∆) VO2max using standardised mean difference (SMD) and a random effects model. Meta-regression examined the relationship between the extent of environmental hypoxia (fractional inspired oxygen [FiO2]) and ∆VO2max and intervention duration and ∆VO2max. The overall SMD for ∆VO2max following HIIT in hypoxia was 1.14 (95% CI = 0.56–1.72; p < 0.001). Meta-regressions identified no significant relationship between FiO2 (coefficient estimate = 0.074, p = 0.852) or intervention duration (coefficient estimate = 0.071, p = 0.423) and ∆VO2max. In conclusion, HIIT in hypoxia improved VO2max compared to HIIT in normoxia. Neither extent of hypoxia, nor training duration modified this effect, however the range in FiO2 was small, which limits interpretation of this meta-regression. Moreover, training duration is not the only training variable known to influence ∆VO2max, and does not appropriately capture total training stress or load. This meta-analysis provides pooled evidence that HIIT in hypoxia may be more efficacious at improving VO2max than HIIT in normoxia. The application of these data suggest adding a hypoxic stimuli to a period of HIIT may be more effective at improving VO2max than HIIT alone. Therefore, coaches and athletes with access to altitude (either natural or simulated) should consider implementing HIIT in hypoxia, rather than HIIT in normoxia where possible, assuming no negative side effects.
34
Reljic, Dejan, Fabienne Frenk, Hans Joachim Herrmann, Markus Friedrich Neurath, and Yurdagül Zopf. "Maximum Heart Rate- and Lactate Threshold-Based Low-Volume High-Intensity Interval Training Prescriptions Provide Similar Health Benefits in Metabolic Syndrome Patients." Healthcare 11, no. 5 (February 28, 2023): 711. http://dx.doi.org/10.3390/healthcare11050711.
Full textAbstract:
Exercise is an integral part of metabolic syndrome (MetS) treatment. Recently, low-volume high-intensity interval training (LOW-HIIT) has emerged as a time-efficient approach to improving cardiometabolic health. Intensity prescriptions for LOW-HIIT are typically based on maximum heart rate (HRmax) percentages. However, HRmax determination requires maximal effort during exercise testing, which may not always be feasible/safe for MetS patients. This trial compared the effects of a 12-week LOW-HIIT program based on: (a) HRmax (HIIT-HR), or (b) submaximal lactate threshold (HIIT-LT), on cardiometabolic health and quality of life (QoL) in MetS patients. Seventy-five patients were randomized to HIIT-HR (5 × 1 min at 80–95% HRmax), HIIT-LT (5 × 1 min at 95–105% LT) groups, both performed twice weekly on cycle ergometers, or a control group (CON). All patients received nutritional weight loss consultation. All groups reduced their body weight (HIIT-HR: −3.9 kg, p < 0.001; HTT-LT: −5.6 kg, p < 0.001; CON: −2.6 kg, p = 0.003). The HIIT-HR and HIIT-LT groups similarly, improved their maximal oxygen uptake (+3.6 and +3.7 mL/kg/min, p < 0.001), glycohemoglobin (−0.2%, p = 0.005, and −0.3%, p < 0.001), homeostasis model assessment index (−1.3 units, p = 0.005, and −1.0 units, p = 0.014), MetS z-score (−1.9 and −2.5 units, p < 0.001) and QoL (+10 points, p = 0.029, and +11 points, p = 0.002), while the CON did not experience changes in these variables. We conclude that HIIT-LT is a viable alternative to HIIT-HR for patients who are not able/willing to undergo maximal exercise testing.
35
Plissonneau, Claire, Frederic Capel, Benoit Chassaing, Marine Dupuit, Florie Maillard, Ivan Wawrzyniak, Lydie Combaret, et al. "High-Intensity Interval Training and α-Linolenic Acid Supplementation Improve DHA Conversion and Increase the Abundance of Gut Mucosa-Associated Oscillospira Bacteria." Nutrients 13, no. 3 (February 27, 2021): 788. http://dx.doi.org/10.3390/nu13030788.
Full textAbstract:
Obesity, a major public health problem, is the consequence of an excess of body fat and biological alterations in the adipose tissue. Our aim was to determine whether high-intensity interval training (HIIT) and/or α-linolenic acid supplementation (to equilibrate the n-6/n-3 polyunsaturated fatty acids (PUFA) ratio) might prevent obesity disorders, particularly by modulating the mucosa-associated microbiota. Wistar rats received a low fat diet (LFD; control) or high fat diet (HFD) for 16 weeks to induce obesity. Then, animals in the HFD group were divided in four groups: HFD (control), HFD + linseed oil (LO), HFD + HIIT, HFD + HIIT + LO. In the HIIT groups, rats ran on a treadmill, 4 days.week−1. Erythrocyte n-3 PUFA content, body composition, inflammation, and intestinal mucosa-associated microbiota composition were assessed after 12 weeks. LO supplementation enhanced α-linolenic acid (ALA) to docosahexaenoic acid (DHA) conversion in erythrocytes, and HIIT potentiated this conversion. Compared with HFD, HIIT limited weight gain, fat mass accumulation, and adipocyte size, whereas LO reduced systemic inflammation. HIIT had the main effect on gut microbiota β-diversity, but the HIIT + LO association significantly increased Oscillospira relative abundance. In our conditions, HIIT had a major effect on body fat mass, whereas HIIT + LO improved ALA conversion to DHA and increased the abundance of Oscillospira bacteria in the microbiota.
36
Pradana, Muhammad Redy Arif, Gadis Meinar Sari, Bambang Purwanto, Maharani Fatima Gandasari, Rakhmat Nur Hidayat, Slamet Raharjo, and Muhammad Muhammad. "Effects of Adding Brown Sugar In Young Coconut Water Post High-Intensity Interval Training on Plasma Osmolarity, Oxygen Saturation, and Pulse Rate." Retos 57 (June 24, 2024): 509–16. http://dx.doi.org/10.47197/retos.v57.103758.
Full textAbstract:
This study analyzes the effect of adding brown sugar to young coconut water post-High Intensity Interval Training (HIIT) on plasma osmolarity, oxygen saturation, and pulse rate. Utilizing a pre and post-test control group design, the experiment involved 20 male subjects aged 19-22 with a normal body mass index. The participants were divided into three groups: (K1) receiving mineral water, (K2) receiving young coconut water, and (K3) receiving young coconut water with added brown sugar. Each subject underwent a 30-minute ergo cycle HIIT session. Blood samples were collected at three intervals: before exercise, immediately after, and an hour post-rehydration. The results indicated plasma osmolarity levels showed no significant change from Pre-HIIT (0.939) to Post-HIIT (0.780). However, Post-Rehydration, an increase was observed across the three groups (p=0.004). Pulse rate measurements revealed no significant difference from Pre-HIIT (0.788) to Post-HIIT (0.411), but Post-Rehydration, a significant decrease was noted between the groups (p=0.034). Oxygen saturation levels remained consistent Pre-HIIT (0.902), Post-HIIT (0.602), and 1-hour post-HIIT (0.611) within the third group. In conclusion, adding brown sugar to young coconut water post-HIIT resulted in higher plasma osmolarity, did not affect oxygen saturation levels, and contributed to a lower pulse rate. Keyword: Plasma osmolarity; oxygen saturation; pulse rate; brown sugar; young coconut water
37
Ramadani, Faisal Arozi, and Widiyanto Widiyanto. "Latihan interval dan HIIT untuk meningkatkan performa dan keseimbangan atlet balap sepeda mountainbike downhill." Jurnal Pedagogi Olahraga dan Kesehatan 4, no. 1 (August 3, 2023): 30–39. http://dx.doi.org/10.21831/jpok.v4i1.19263.
Full textAbstract:
Penelitian ini bertujuan untuk mengetahui: (1) pengaruh latihan interval dan HIIT (2) pengaruh latihan HIIT, dan (3) perbedaan pengaruh latihan antara interval dan HIIT terhadap performance anaerobik dan keseimbangan pada atlet balap sepeda downhill mountainbike Yogyakarta. Penelitian ini adalah eksperimen, dengan desain Two Groups Pretest- Posttest Design. Sampel penelitian ini 12 atlet yang ditentukan dengan teknik total sampling. Instrumen untuk mengukur performance anaerobik adalah RAST (Running-based Anaerobic Sprint Test) dan untuk mengukur keseimbangan adalah strock stand. Teknik analisis data yang digunakan adalah uji-t pada taraf signifikan α = 0,05. Hasil penelitian adalah sebagai berikut. (1) Ada pengaruh latihan interval terhadap kemampuan anaerobik power dan keseimbangan pada atlet balap downhill mountainbike Yogyakarta. (2) Ada pengaruh latihan HIIT terhadap kemampuan performance anaerobik dan keseimbangan pada atlet balap downhill mountainbike di Yogyakarta. (3) Tidak terdapat perbedaan antara latihan interval dan HIIT terdadap performance anaerobik dan keseimbangan pada atlet balap downhill mountainbike Yogyakarta. Pengaruh latihan HIIT terhadap peningkatan performance anaerobik lebih lebih baik dilihat dari mean pretest latihan interval sebesar 419 dan keseimbangan sebesar 69,33 dan pretest mean kelompok latihan HIIT 56,8333 dan keseimbangan sebesar 62,76167 dan posttest nilai mean kelompok latihan interval 445,1667 keseimbangan sebesar 76,63167 dan mean kelompok HIIT sebesar sebesar 602 dan keseimbangan 76,285 dengan nilai signifikansi mean antara kelompok interval dan HIIT sebesar 147,8333. Interval training and HIIT to improve performance and balance in downhill mountain bike cyclists Abstract: This study aims to determine: (1) the effect of interval training and HIIT, (2) the effect of HIIT training, and (3) the difference in the effect of training between interval and HIIT on anaerobic performance and balance in Yogyakarta downhill mountain bike racing athletes. This research is an experiment with a Two Groups Pretest- Posttest Design. The sample of this study was 12 athletes determined by total sampling technique. The instrument to measure anaerobic performance is RAST (Running-based Anaerobic Sprint Test) and to measure balance is struck stand. The data analysis technique used is the t-test at a significant level α = 0.05. The results of the study are as follows. (1) There is an effect of interval training on anaerobic power and balance in Yogyakarta downhill mountain bike racing athletes. (2) There is an effect of HIIT training on anaerobic performance ability and balance in downhill mountain bike racing athletes in Yogyakarta. (3) There is no difference between interval training and HIIT on anaerobic performance and balance in Yogyakarta downhill mountain bike racing athletes. The effect of HIIT training on improving anaerobic performance is better, as seen from the pretest mean of interval training of 419 and balance of 69.33 and pretest mean of HIIT training group of 56.8333 and balance of 62.76167 and posttest mean value of interval training group of 445.1667 balance of 76.63167 and mean of HIIT group of 602 and balance of 76.285 with significance value of mean between interval and HIIT group of 147.8333.
38
Borycka, Aleksandra, Barbara Jędrzejewska, Maria Kotulska, Paulina Laskus, Martyna Lichman, Zuzanna Lubczyńska, Zofia Potocka, Jakub Przeradzki, Katarzyna Rząd, and Magda Szyca. "A Systematic Review of the Influence of High-Intensity Interval Training on Body Composition and Synthesizing Evidence from Scientific Literature." Journal of Education, Health and Sport 27, no. 1 (May 9, 2023): 76–86. http://dx.doi.org/10.12775/jehs.2023.27.01.008.
Full textAbstract:
INTRODUCTION AND OBJECTIVE
High-intensity interval training (HIIT) involves performing a series of intense exercises interspersed with periods of passive or active rest. HIIT provides changes in body composition and physical fitness. The aim of this study is to determine the impact of HIIT on changes in body composition and compare the results of HIIT with moderate-intensity continuous training (MICT) and resistance training (RT).
REVIEW METHODS
The PubMed and Google Scholar databases were searched for studies examining the impact of HIIT on changes in body composition. Articles published up to 31.03.2023 were included, with a particular focus on the most recent publications.
STATE OF KNOWLEDGE
The classification of HIIT considers the intensity, duration and number of bouts during training session, as well as the length of the intervention period. Body composition describes qualitive and quantitative elements in the human body. Improving body composition benefits health and enables better training results. HIIT promotes weight loss, reduces BMI and decreases the content of adipose tissue, including visceral fat. HIIT is equally or more effective than MICT in burning fat tissue. Resistance exercises added to HIIT protocols have a favorable effect on changes in body composition.
SUMMARY
The assessment of HIIT effects on changes in body composition is complicated due to various interpretations of its definition. Further analyses are needed to systematize knowledge of the benefits of different HIIT protocols. Research optimizing them for reducing adipose tissue based on age, gender, body mass and presence of metabolic disorders are necessary.
39
Guo, Yifan, Qilong Zhang, Dan Yang, Peijie Chen, and Weihua Xiao. "HIIT Promotes M2 Macrophage Polarization and Sympathetic Nerve Density to Induce Adipose Tissue Browning in T2DM Mice." Biomolecules 14, no. 3 (February 20, 2024): 246. http://dx.doi.org/10.3390/biom14030246.
Full textAbstract:
Browning of white adipose tissue (WAT) is a focus of research in type 2 diabetes mellitus (T2DM) and metabolism, which may be a potential molecular mechanism for high-intensity interval training (HIIT) to improve T2DM. In this study, male C57BL/6J wild-type mice were subjected to an 8-week HIIT regimen following T2DM induction through a high-fat diet (HFD) combined with streptozotocin (STZ) injection. We found that HIIT improved glucose metabolism, body weight, and fat mass in T2DM mice. HIIT also decreased adipocyte size and induced browning of WAT. Our data revealed a decrease in TNFα and an increase in IL-10 with HIIT, although the expression of chemokines MCP-1 and CXCL14 was increased. We observed increased pan-macrophage infiltration induced by HIIT, along with a simultaneous decrease in the expression of M1 macrophage markers (iNOS and CD11c) and an increase in M2 macrophage markers (Arg1 and CD206), suggesting that HIIT promotes M2 macrophage polarization. Additionally, HIIT upregulated the expression of Slit3 and neurotrophic factors (BDNF and NGF). The expression of the sympathetic marker tyrosine hydroxylase (TH) and the nerve growth marker GAP43 was also increased, demonstrating the promotion of sympathetic nerve growth and density by HIIT. Notably, we observed macrophages co-localizing with TH, and HIIT induced the accumulation of M2 macrophages around sympathetic nerves, suggesting a potential association between M2 macrophages and increased density of sympathetic nerves. In conclusion, HIIT induces adipose tissue browning and improves glucose metabolism in T2DM mice by enhancing M2 macrophage polarization and promoting sympathetic nerve growth and density.
40
Xue, Yang, Xiongce Lv, and Zhong Ge. "POWER SUPPLY CHARACTERISTICS OF BASKETBALL PLAYERS AT DIFFERENT TRAINING INTENSITIES." Revista Brasileira de Medicina do Esporte 29 (2023). http://dx.doi.org/10.1590/1517-8692202329012022_0338.
Full textAbstract:
ABSTRACT Introduction: In competitive basketball sports, athletes must repeatedly perform movements of maximum intensity quickly, followed by rest. A training mode called high-intensity interval training (HIIT) has the same characteristics. Objective: Explore basketball players’ energy supply characteristics and training changes under different exercise intensities. Methods: The effects of different recovery methods in the intermittent period on exercise capacity and aerobic metabolic energy supply of young male basketball players during high-intensity intermittent interval training (HIIT) were presented. Results: Increased aerobic energy production during HIIT was closely related to the acceleration of kinetics. However, although the time to exhaustion, a parameter characterizing exercise capacity, increased by 3.5% and 4.6%, respectively, in the HIITa group compared to HIITs and HIITp, there was no significant difference. After analyzing each group for the 30s, a gradual increase in strength was noticed. Conclusion: The use of HIIT as training is an important way to improve the physical performance of athletes. Level of evidence II; Therapeutic studies - investigation of treatment outcomes.
41
Akmali, Azadeh, and Marziyeh Saghebjoo. "High-intensity interval training with long duration intervals is more effective than short duration intervals for improving glycolytic capacity in the rats’ gastrocnemius muscle." Hormone Molecular Biology and Clinical Investigation, October 19, 2019. http://dx.doi.org/10.1515/hmbci-2019-0035.
Full textAbstract:
Abstract Background There is little data regarding the ability of high-intensity interval training (HIIT) to increase of glycolytic capacity and intramuscular metabolic adaptations. The goal of this study was to evaluate the effects of HIIT (8 weeks, 5 times/week) with short (HIIT1 min: 16 × 1 min work and active recovery at 80–95% and 50–60% VO2max, respectively) and long (HIIT4 min: 4 × 4 min work and active recovery at 80–95% and 50–60% VO2max, respectively) duration intervals and 4 weeks detraining on the levels of phosphofructokinase (PFK), glycogen synthase 1 (GYS1), monocarboxylate transporter 4 (MCT4) and lactate dehydrogenase (LDH) activity in the rats’ gastrocnemius muscle. Materials and methods Fifty-four male Wistar rats were assigned into three groups, including HIIT1 min, HIIT4 min and control (Ctrl). After 48 h of the last training session and after 4 weeks of detraining, the rats were sacrificed, and the gastrocnemius muscles were isolated. Results The PFK levels in the HIIT4 min group was significantly higher than in the HIIT1 min and Ctrl groups, and after the detraining period in the HIIT4 minDT group significantly decreased compared to the HIIT4 min group. The LDH activity in the HIIT4 min and HIIT1 min groups were significantly higher than the Ctrl group and the increasing trend in the HIIT4 min group was more than the HIIT1 min group. There was no significant change in LDH activity after detraining compared to training. No significant changes were observed in the level of GYS1 and MCT4 after HIIT. Conclusions Eight weeks of HIIT with long duration intervals induced more improvements in intramuscular glycolytic capacity than a short duration. After short-term detraining, some of these adaptations have remained.
42
Dun, Yaoshan, Shane M. Hammer, Joshua R. Smith, Mary C. MacGillivray, Benjamin S. Simmons, Ray W. Squires, Suixin Liu, and Thomas P. Olson. "Cardiorespiratory Responses During High-Intensity Interval Training Prescribed by Rating of Perceived Exertion in Patients After Myocardial Infarction Enrolled in Early Outpatient Cardiac Rehabilitation." Frontiers in Cardiovascular Medicine 8 (January 5, 2022). http://dx.doi.org/10.3389/fcvm.2021.772815.
Full textAbstract:
Objective: We aimed to determine the cardiorespiratory responses during, and adaptations to, high-intensity interval training (HIIT) prescribed using ratings of perceived exertion (RPE) in patients after myocardial infarction (MI) during early outpatient cardiac rehabilitation (CR).Methods: We prospectively recruited 29 MI patients after percutaneous coronary intervention who began CR within 2 weeks after hospital discharge. Eleven patients (seven men; four women; age: 61 ± 11 yrs) who completed ≥24 supervised HIIT sessions with metabolic gas exchange measured during HIIT once weekly for 8 weeks and performed pre- and post- CR cardiopulmonary exercise tests were included in the study. Each HIIT session consisted of 5–8 high-intensity intervals [HIIs, 1-min RPE 14–17 (Borg 6–20 scale)] and low-intensity intervals (LIIs, 4-min RPE < 12). Metabolic gas exchange, heart rate (HR), and blood pressure during HIIT were measured.Results: The mean oxygen uptake (V˙O2) during HIIs across 88 sessions of HIITs [91 (14)% of V˙O2peak, median (interquartile range, IQR)] was significantly higher than the lower limit of target V˙O2 zone (75% of V˙O2peak) recommended for the HII (p < 0.001). Exercise intensity during RPE-prescribed HIITs, determined as %V˙O2peak, was highly repeatable with intra-class correlations of 0.95 (95% CI 0.86– 0.99, p < 0.001). For cardiorespiratory adaptations from the first to the last session of HIIT, treadmill speed, treadmill grade, treadmill power, V˙O2HII, %V˙O2peak, and VE during HIIs were increased (all p < 0.05), while no difference was found for HR, %HRpeak and systolic blood pressure (all p > 0.05). V˙O2peak increased by an average of 9% from pre-CR to post-CR. No adverse events occurred.Conclusion: Our results demonstrate that HIIT can be effectively prescribed using RPE in MI patients during early outpatient CR. Participation in RPE-prescribed HIIT increases exercise workload and V˙O2 during exercise training without increased perception of effort or excessive increases in heart rate or blood pressure.
43
Ghasemnian, Aghaali, Mozhgan Usefpour, Ahmad Rahmani, and Zeinab Iddehloei. "Comparing the Effect of Two Methods of High-Intensity Interval Training (HIIT) and High-Intensity Continuous Training (HICT) on Damage and Antioxidant Indices of Liver in Male Wistar Rats." Journal of Archives in Military Medicine 8, no. 1 (September 14, 2020). http://dx.doi.org/10.5812/jamm.100409.
Full textAbstract:
Background: Nowadays, one of the widely used training methods is high-intensity interval training (HIIT). In addition, researchers have stated that long-term, high-intensity training is associated with the production of free radicals in the body. Free radicals also damage liver cells, resulting in increased liver enzymes. Objectives: The objective of this study was to investigate the effect of HIIT, compared to high-intensity continuous training (HICT), on damage and antioxidant indices of the liver in male Wistar rats. Methods: Twenty-two adult male rats were randomly divided into three groups of control (n = 6), HIIT (n = 8), and HICT (n = 8). Training protocols included HIIT and HICT on a treadmill for eight weeks (five days in a week). Standard water and food were provided for rats ad libitum. Forty-eight hours after the last training session, blood and tissue samples were collected, and serum enzymes were measured by the methods recommended by the International Federation of Clinical Chemistry and Laboratory Medicine (IFCC) method. The level of enzyme activity of superoxide dismutase in the liver tissue was measured by Randox Commercial Kit (Cat. No. SD 126). One-way analysis of variance (ANOVA) and Tukey’s post hoc tests were used to analyze the data. Results: The results showed that eight weeks of HIIT and HICT had no effect on the alanine aminotransferase (ALT) level (P = 0.14), but eight weeks of HIIT significantly decreased the serum aspartate aminotransferase (AST) level compared to the control group (P = 0.04). The level of liver superoxide dismutase (SOD) enzyme activity significantly increased in the HIIT and HICT groups compared to the control group (P = 0.001). HICT also led to a significant increase in the SOD level compared to HIIT (P = 0.03). Conclusions: The research results suggested that eight weeks of HIIT led to a significant reduction in serum AST levels, and HIIT had a lower effect on the increased SOD activity in liver tissue compared to HICT. It might be stated that HIIT is safer than HICT, and it has fewer destructive effects on liver tissue.
44
Ghasemnian, Aghaali, Mozhgan Usefpour, Ahmad Rahmani, and Zeinab Iddehloei. "Comparing the Effect of Two Methods of High-Intensity Interval Training (HIIT) and High-Intensity Continuous Training (HICT) on Damage and Antioxidant Indices of Liver in Male Wistar Rats." Journal of Archives in Military Medicine 8, no. 1 (September 14, 2020). http://dx.doi.org/10.5812/jhealthscope.100409.
Full textAbstract:
Background: Nowadays, one of the widely used training methods is high-intensity interval training (HIIT). In addition, researchers have stated that long-term, high-intensity training is associated with the production of free radicals in the body. Free radicals also damage liver cells, resulting in increased liver enzymes. Objectives: The objective of this study was to investigate the effect of HIIT, compared to high-intensity continuous training (HICT), on damage and antioxidant indices of the liver in male Wistar rats. Methods: Twenty-two adult male rats were randomly divided into three groups of control (n = 6), HIIT (n = 8), and HICT (n = 8). Training protocols included HIIT and HICT on a treadmill for eight weeks (five days in a week). Standard water and food were provided for rats ad libitum. Forty-eight hours after the last training session, blood and tissue samples were collected, and serum enzymes were measured by the methods recommended by the International Federation of Clinical Chemistry and Laboratory Medicine (IFCC) method. The level of enzyme activity of superoxide dismutase in the liver tissue was measured by Randox Commercial Kit (Cat. No. SD 126). One-way analysis of variance (ANOVA) and Tukey’s post hoc tests were used to analyze the data. Results: The results showed that eight weeks of HIIT and HICT had no effect on the alanine aminotransferase (ALT) level (P = 0.14), but eight weeks of HIIT significantly decreased the serum aspartate aminotransferase (AST) level compared to the control group (P = 0.04). The level of liver superoxide dismutase (SOD) enzyme activity significantly increased in the HIIT and HICT groups compared to the control group (P = 0.001). HICT also led to a significant increase in the SOD level compared to HIIT (P = 0.03). Conclusions: The research results suggested that eight weeks of HIIT led to a significant reduction in serum AST levels, and HIIT had a lower effect on the increased SOD activity in liver tissue compared to HICT. It might be stated that HIIT is safer than HICT, and it has fewer destructive effects on liver tissue.
45
Billany, Roseanne E., Alice C. Smith, Ganisha M. Hutchinson, Matthew P. M. Graham-Brown, Daniel G. D. Nixon, and Nicolette C. Bishop. "Feasibility and acceptability of high-intensity interval training and moderate-intensity continuous training in kidney transplant recipients: the PACE-KD study." Pilot and Feasibility Studies 8, no. 1 (May 21, 2022). http://dx.doi.org/10.1186/s40814-022-01067-3.
Full textAbstract:
Abstract Background Kidney transplant recipients (KTRs) exhibit unique elevated inflammation, impaired immune function, and increased cardiovascular risk. Although exercise reduces cardiovascular risk, there is limited research on this population, particularly surrounding novel high-intensity interval training (HIIT). The purpose of this pilot study was to determine the feasibility and acceptability of HIIT in KTRs. Methods Twenty KTRs (male 14; eGFR 58±19 mL/min/1.73 m2; age 49±11 years) were randomised and completed one of three trials: HIIT A (4-, 2-, and 1-min intervals; 80–90% watts at V̇O2peak), HIITB (4×4 min intervals; 80–90% V̇O2peak) or MICT (~40 min; 50–60% V̇O2peak) for 24 supervised sessions on a stationary bike (approx. 3x/week over 8 weeks) and followed up for 3 months. Feasibility was assessed by recruitment, retention, and intervention acceptability and adherence. Results Twenty participants completed the intervention, and 8 of whom achieved the required intensity based on power output (HIIT A, 0/6 [0%]; HIITB, 3/8 [38%]; MICT, 5/6 [83%]). Participants completed 92% of the 24 sessions with 105 cancelled and rescheduled sessions and an average of 10 weeks to complete the intervention. Pre-intervention versus post-intervention V̇O2peak (mL/kg-1/min-1) was 24.28±4.91 versus 27.06±4.82 in HIITA, 24.65±7.67 versus 27.48±8.23 in HIIT B, and 29.33±9.04 versus 33.05±9.90 in MICT. No adverse events were reported. Conclusions This is the first study to report the feasibility of HIIT in KTRs. Although participants struggled to achieve the required intensity (power), this study highlights the potential that exercise has to reduce cardiovascular risk in KTRs. HIIT and MICT performed on a cycle, with some modification, could be considered safe and feasible in KTRs. Larger scale trials are required to assess the efficacy of HIIT in KTRs and in particular identify the most appropriate intensities, recovery periods, and session duration. Some flexibility in delivery, such as incorporating home-based sessions, may need to be considered to improve recruitment and retention. Trial registration ISRCTN, ISRCTN17122775. Registered on 30 January 2017.
46
Murawska-Ciałowicz, Eugenia, Gilmara Gomes de Assis, Filipe Manuel Clemente, Yuri Feito, Petr Stastny, Jolanta Zuwała-Jagiełło, Bartosz Bibrowicz, and Paweł Wolański. "Effect of four different forms of high intensity training on BDNF response to Wingate and Graded Exercise Test." Scientific Reports 11, no. 1 (April 21, 2021). http://dx.doi.org/10.1038/s41598-021-88069-y.
Full textAbstract:
AbstractThis study examined the effects of a nine-week intervention of four different high-intensity training modalities [high-intensity functional training (HIFT), high-intensity interval training (HIIT), high-intensity power training (HIPT), and high-intensity endurance training (HIET)] on the resting concentration of brain-derived neurotropic factor (BDNF). In addition, we evaluated the BDNF responses to Graded Exercise Test (GXT) and Wingate Anaerobic Test (WAnT) in men. Thirty-five healthy individuals with body mass index 25.55 ± 2.35 kg/m2 voluntarily participated in this study and were randomly assigned into four training groups. During nine-weeks they completed three exercise sessions per week for one-hour. BDNF was analyzed before and after a GXT and WAnT in two stages: (stage 0—before training and stage 9—after nine weeks of training). At stage 0, an increase in BDNF concentration was observed in HIFT (33%; p < 0.05), HIPT (36%; p < 0.05) and HIIT (38%; p < 0.05) after GXT. Even though HIET showed an increase in BDNF (10%) this was not statistically significant (p > 0.05). At stage 9, higher BDNF levels after GXT were seen only for the HIFT (30%; p < 0.05) and HIIT (18%; p < 0.05) groups. Reduction in BDNF levels were noted after the WAnT in stage 0 for HIFT (− 47%; p < 0.01), HIPT (− 49%; p < 0.001), HIET (− 18%; p < 0.05)], with no changes in the HIIT group (− 2%). At stage 9, BDNF was also reduced after WAnT, although these changes were lower compared to stage 0. The reduced level of BDNF was noted in the HIFT (− 28%; p < 0.05), and HIPT (− 19%;p < 0.05) groups. Additionally, all groups saw an improvement in VO2max (8%; p < 0.001), while BDNF was also correlated with lactate and minute ventilation and selected WAnT parameters. Our research has shown that resting values of BDNF after nine weeks of different forms of high-intensity training (HIT) have not changed or were reduced. Resting BDNF measured at 3th (before GXT at stage 9) and 6th day after long lasting HITs (before WAnT at stage 9) did not differed (before GXT), but in comparison to the resting value before WAnT at the baseline state, was lower in three groups. It appears that BDNF levels after one bout of exercise is depended on duration time, intensity and type of test/exercise.
47
Mang, Zachary A., Jason R. Beam, Eric D. Vigil, and Adam H. Martinez. "A Description of Exercise Programs Implemented During a Firefighter Training Academy." Journal of Occupational & Environmental Medicine, December 18, 2023. http://dx.doi.org/10.1097/jom.0000000000003030.
Full textAbstract:
Abstract Objective Thoroughly describe exercise programs that were performed during a firefighter training academy, including their effects on body composition and physical fitness. Methods Fourteen recruits performed exercise programs during a 24-week training academy and several components of their body composition and physical fitness were measured. Moreover, their heart rate (HR) and session rating of perceived exertion (sRPE) were recorded during and after every training session, respectively. Results Fat-free mass, subcutaneous fat in the abdomen, cardiovascular fitness, flexibility, lower-body power, and muscular endurance significantly improved during the study, p ≤ 0.05. The highest HR and sRPE responses were observed during aerobic training (AT) sessions. The average HR responses relative to maximum HR were similar during AT, high-intensity circuit training (HICT), multi-modal high-intensity interval training (MM-HIIT), and high-intensity functional training (HIFT); however, the sRPEs during HICT and MM-HIIT were significantly lower than AT. Conclusions Several effective exercise programs can be implemented during firefighter training academies.
48
Billany, Roseanne E., Alice Smith, Ganisha Hutchinson, Daniel Nixon, and Nicolette Bishop. "P1722HIGH INTENSITY INTERVAL TRAINING AND MODERATE INTENSITY CONTINUOUS TRAINING IN RENAL TRANSPLANT RECIPIENTS: THE PACE-KD STUDY." Nephrology Dialysis Transplantation 35, Supplement_3 (June 1, 2020). http://dx.doi.org/10.1093/ndt/gfaa142.p1722.
Full textAbstract:
Abstract Background and Aims Cardiovascular disease (CVD) is a major cause of morbidity and mortality in renal transplant recipients (RTRs). General CVD risk scores underestimate the risk in RTRs who also exhibit elevated inflammation and impaired immune function. Exercise has a positive impact on these unique factors and there is growing consensus on the need for formal and specific exercise guidelines in RTRs. Despite this, there is limited rigorous research in this population, particularly surrounding novel high intensity interval training (HIIT) versus moderate intensity continuous training (MICT). Method 24 RTRs (male 17; eGFR 55 ml/min/1.73 m2 [26-90]; age 48 years [27-76]) were randomised to: HIITA (n=8; 4, 2 and 1 min intervals; 80-90% of watts at peak oxygen uptake (V̇O2 peak)), HIITB (n=8, 4 × 4 min intervals; 80-90% V̇O2 peak) or MICT (n=8, ∼35.5 min; 50-60% V̇O2 peak) for 24 supervised sessions on a stationary bike (approx. 3x/week over 8 weeks). Assessments of cardiorespiratory fitness, body composition (weight and body fat %), and physical function (sit-to-stand 60 (STS60), gait speed, and calf strength) were conducted pre and post-intervention. Data were analysed using ANCOVA and paired samples t-tests. Results Twenty participants completed the intervention, 8 of whom reached the required intensity (HIITA 0/6 [0%], HIITB 3/8 [38%], MICT 5/6 [83%]). Although participants completed 92% (average) of the 24 sessions, there were 105 cancelled/rearranged sessions (illness 68, other commitments 33, investigator illness 4) and an average duration of 10 weeks to complete the intervention. There were significant post-training improvements in V̇O2 peak (ml/kg/min)(See Table 1: HIITA, p=0.007; HIITB, p=0.025; MICT, p=0.012) and in peak power output (wattpeak)(HIITA, p=0.001; HIITB, p=0.005; MICT, p=0.002) for all groups. There was a significant post-training reduction in systolic and diastolic blood pressure (SBP and DBP, respectively) in MICT (p<0.001) and a significant reduction in DBP in HIITB (p<0.001). There were no significant changes in body composition. Gait speed improved in MICT (p=0043) and STS60 performance improved in HIITA (p=0.012). After controlling for baseline values, there were no significant between group differences for any post-training variables. Conclusion Enhanced cardiorespiratory fitness has been widely reported to correlate with a reduced risk of CVD and mortality. These early feasibility results, whilst acknowledging some baseline variations, show promising effects of both HIIT and MICT on the cardiorespiratory fitness of RTRs. Results also show promising reductions in blood pressure, a leading risk factor for CVD. Although fewer RTRs met the required intensity for the HIIT protocols than MICT, there were no serious adverse events or detrimental results reported. There were a large number of sessions cancelled due to illness; potentially attributable to immunosuppressive agents. We would recommend further large-scale trials of different HIIT protocols potentially with shorter intervals and less intense recovery periods in order to facilitate the achievement of the required intensity. Overall, these results further support the call for specific exercise guidance in this population in order to supplement current post-transplantation clinical advice.
49
Munoz Gomez, E., N. Sempere-Rubio, J. Blesa, P. Iglesias, L. Mico, J. Sanchez-Torrijos, V. Girbes, et al. "Multidisciplinary program based in physiotherapy and nutrition in coronary artery disease patients: randomized controlled trial." European Journal of Cardiovascular Nursing 20, Supplement_1 (July 1, 2021). http://dx.doi.org/10.1093/eurjcn/zvab060.078.
Full textAbstract:
Abstract Funding Acknowledgements Type of funding sources: None. Introduction. The interventions on eating habits and exercise in physiotherapy programs are usually recommended in coronary artery disease (CAD), since they are beneficial to improve physical and nutritional status of patient. Despite this, scarce studies are focused on combined protocols based on high intensity interval training (HIIT) and dietary education in CAD patients with percutaneous coronary intervention (PCI). Purpose The main goal of this study was to compare the effectiveness of a multidisciplinary program based in HIIT, with a program based in dietary education and HIIT (DEHIIT), on eating habits in CAD patients with PCI. Methods. A prospective, randomized controlled trial with blinded outcome assessment was developed. The study was developed at a University research laboratory. 44 participants diagnosed with CAD, aged between 40 and 72 years, were randomly allocated to two treatment groups: HIIT group (HIITG, n = 22) and dietary intervention and HIIT group (DEHIITG, n = 22). The assessment consisted of applying a Food Frequency Questionnaires (FFQ) at baseline and post-intervention. DEHIITG performed a 3-month dietary intervention program combined with 24 HIIT sessions at 85-95% of peak heart rate, whilst HIITG performed a 3-month HIIT sessions at 85-95% of peak heart rate. This study did not receive any funding. No conflict of interest is declared. Results. At the end of the program, when comparing between groups, statistically significant changes were noted. DEHIITG consumed more olive oil (p = 0.021), chicken or turkey (p = 0.039), stir-fried with vegetables (p = 0.033), vegetables (p = 0.003), fish and seafood (p = 0.039), and quantity of commercial juices (p = 0.042), sweets and snacks (p = 0.033). HIITG showed more improvements than DEHIITG in soups and creams consumption (p = 0.042). No adverse events were reported. Conclusions. A dietary intervention with HIIT protocol yields better benefits than only HIIT on eating habits in CAD patients with PCI. Thus, our combined program could be considered a suitable treatment option among these patients.
50
Faraji, Esrafil, Kamal Azizbeigi, Khalid Mohamadzadeh Salamat, and Zaher Etemad. "Quercetin Supplementation has no Synergetic Effect with High-Intensity Interval Training in Ameliorate Lipid Profile in Male Diabetic Rats." Asian Journal of Sports Medicine 15, no. 1 (January 3, 2024). http://dx.doi.org/10.5812/asjsm-136864.
Full textAbstract:
Background: In diabetic patients, lipid profile (LP) management is crucial. Quercetin (QUE), as an antioxidant supplement, has received a great deal of attention in improving the LP. Objectives: The current study aimed to investigate the simultaneous effect of high-intensity interval training (HIIT) and QUE on LP in male diabetic rats. Methods: Fifty Wistar male rats were randomly assigned to healthy control (HC; n = 10), diabetic control (DC; n = 10), high-intensity interval training (HIIT; n = 10), quercetin supplement (QS; n = 10), high-intensity interval training and quercetin (HIIQ; n = 10). QUE was given (20 mg/kg/d) to the animals daily for six weeks. HIIT has performed five sessions per week for six weeks in 8-10 sets with 85 - 65% of the maximum oxygen consumption (VO2max) on the treadmill. Blood samples were taken directly from the animal’s heart 48 hours after the last training session, and high-density lipoprotein (HDL-C), low-density lipoproteins (LDL-C), triglycerides (TG) cholesterol (CHOL), and fasting blood glucose (FBS) were measured in the serum. To analyze the data, two-way analysis of variance (ANOVA) and Tukey's post hoc test were used. Results: There was no significant difference between HIIQ with HIIT, QS in LDH-C and LDL-C (P > 0.05). Also, no significant difference was seen between HIIT, QS, and HIIQ in TG concentration after intervention (P > 0.05). CHOL was significantly lower in HIIT than QS (P = 0.001), while there was no significant difference between the HIIQ with QS (P > 0.05). Also, there was no significant difference between QS and HIIQ in FBS (P > 0.05). Conclusions: It seems that high-intensity interval training and quercetin alone can be effective in improving lipid profile. However, quercetin does not have a synergetic effect with high-intensity interval training in ameliorating lipid profile in diabetic male rats.