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1

Rhee, Jane, Sang-Hyun Kwon, Dong-Won Yook et Jung-Taek Shin. « The Development and Application of Positive Psychological Intervention Program for a College Ice Hockey Team ». Korean Journal of Sport Science 32, no 4 (31 décembre 2021) : 613–27. http://dx.doi.org/10.24985/kjss.2021.32.4.613.

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PURPOSE This study aimed to develop a positive psychological intervention program for a college ice hockey team and test its effects based on application to the team.METHODS The demands of 78 college ice hockey players were asked through open questionnaires. Collected results underwent integrated analysis to develop the desired program through the participants who were also observers of the team. The objectives of the program were established, and an appropriate program was developed based on the analyzed data, expert opinion, and precedent research. The developed program was applied to 26 players of a college ice hockey team to verify its effects. Tasks included writing experience reports and in-depth interviews. The Happiness Measures 1, Strength Knowledge, and Team Interaction Questionnaires were also administered. Collected qualitative data were categorized to follow inductive analysis procedures, while paired t-tests were performed for quantitative data using SPSS 25.0.RESULTS To improve the application of the program in real situations and maintain credibility and validity, the program was developed based on analyses of individual and team demands, methods of the participant as an observer, expert opinion, and other considerations. Statistically meaningful differences in positive psychological mind, happiness, recognition and utilization of strengths, team interactions, team cohesion, and so on were found using paired t-tests comparing data before and after the developed positive psychological intervention program.CONCLUSIONS Providing opportunities to recognize individual and team strengths and have valuable experiences for each player could enhance interactions between teammates and create a favorable team environment.
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Kurochkina, I. P., L. A. Mamatova, E. B. Shuvalova et N. A. Malysheva. « On the Issue of Analyzing and Optimizing the Salary Budget of Professional Hockey Clubs ». Statistics and Economics 19, no 1 (3 mars 2022) : 53–61. http://dx.doi.org/10.21686/2500-3925-2022-1-53-61.

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The purpose of the study. The aim of the study is to use the methods of correlation-regression analysis as a tool to determine the fair share of a professional hockey player’s salary in the total salary budget of a hockey club. In modern conditions of functioning of professional hockey clubs, in which the total costs of the players’ salaries are strictly regulated by the “salary cap”, the availability of a tool that allows an objective assessment of the player’s contribution to the overall team result can increase the effectiveness of management decisions. In this paper, a regression model is proposed that allows us to determine the impact of individual characteristics of players, using the example of team defensemen, on the share of their wages in the salary cap.Materials and methods. To select a multiple regression model, the statistical indicators of the defensemen of the National Hockey League in the 2018-2019 season were analyzed. At the substantive stage to design a model, a list of those statistical indicators was determined that, in our opinion, allow us to conclude above that a particular player is useful for the team, and also meet the requirements for factors to be included in the multiple linear regression model (quantitative assessment, close relationship with the result, lack of multicollinearity). In order to obtain the highest quality regression model, a posteriori approach was used in the selection of factors that should be included in the final version of the regression model. As a result of the step-by-step selection of factors, the factors were excluded from the model, t-statistics’ values of which made it possible to draw a conclusion on their statistical insignificance.Results. As a result, a statistically significant model was obtained that describes the dependence of the share of wages in the salary cap of the 2018-2019 season. Comparing the salary shares predicted using the obtained model and their actual values, it was possible to determine the most overrated and underestimated defensemen of the National Hockey League in the 2018-2019 season.Conclusion. The proposed regression model is an example of how econometric methods combined with hockey statistics allow us to quantify the pricing patterns of a professional hockey player’s contract. In our opinion, the obtained model of multiple linear regression is an affordable tool that allows us to give an adequate assessment of the value of a professional hockey player’s contract and help in solving one of the most urgent tasks in sports management – the formation of a competitive team in the presence of a salary cap.
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Mehamad, Mohd Fahme Zamzam Bin, Borhannuddin Bin Abdullah et Shamsulariffin Samsuddin. « Differences in Gross Motor Development among Early School Children : Comparison on Team and Individual Sports ». ACPES Journal of Physical Education, Sport, and Health (AJPESH) 1, no 1 (15 juin 2021) : 22–30. http://dx.doi.org/10.15294/ajpesh.v1i1.46297.

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This study aimed to determine the level of gross motor development of children aged eight to ten years involved in individual (I) and team (T) sports by using the Tests of Gross Motor Development-2 (TGMD-2) method. This study is an ex-post factor involving 360 children in their early schooling stages (M = 180, F = 180). The study involved 2 types of sports: individually (Athletics = 60, Badminton = 60, Taekwondo = 60) and team (Handball = 60, Hockey = 60, Basketball = 60). Descriptive analysis has shown the level of performance for individual sports AEL (M = 8.24, SD = 1.02, DR = Average), AEM (M = 7.16, SD = 0.92, DR = Below Average) and GMDQ (M = 87.87, SD = 5.4, DR = Below Average). For team sports, the age equivalence levels of AEL (M = 8.05, SD = 1.23, DR = Average), AEM (M = 7.84, SD = 1.07, DR = Below Average) and GMDQ (M = 90.02, SD = 6.57, DR = Below Average). There was a significant difference for individual and team sports on the AEL score t (358) = 1.64, p = 0.00. While there was no significant difference for individual and team sports on the AEM score t (358) =-6.45, p = 0.27 and GMDQ t (358) =-3.39, p = 0.06. MANOVA analysis showed that there were significant differences for AEL, AEM and GMDQ scores for athletics, badminton, taekwondo, handball, hockey, and basketball with [F (15,972.12) = 11.82, p <0.001, eta squared = 0.14]. Individual sport types had an AEL age delay of -1.27 years and an AEM of -2.15 years in contrast to team sports with an AEL age delay of -1.25 years and an AEM of only -1.37 years. ANCOVA analysis showed that gender and age could influence the level of gross motor development of individual and team sports. Implementing the gross motor development test provides knowledge and information to teachers and coaches to know athletes’ gross motor acquisition. Teachers and coaches could also design a training program to help athletes strengthen their gross motor development and improve their athletic performance.
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Murti, Vishav, et Esar Ahmad. « Aerobic Training on the Physical Fitness and Technical Variables of Male Ice Hockey Players ». Journal of Research in Vocational Education 6, no 6 (30 juin 2024) : 26–30. http://dx.doi.org/10.53469/jrve.2024.6(06).06.

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Hockey attained greater level of popularity all over the World and played on sand, natural grass and artificial turf ground. The modem game of hockey demands that each member of the team be able to play in all positions. The purpose of the study was to find out the effect of aerobic training on physical fitness and skill variables of men hockey players. The selected physical fitness and skill variables were hitting and dribbling, To achieve this purpose total (N=30) subjects selected from Faculty of General Adapted Physical Education and Yoga, Ramakrishna Mission Vivekananda Educational and Research Institute, Coimbatore. The subjects are selected by purposive sampling method. The subjects are equally divided into two groups namely group - I (n - 15) Aerobic training with Skill Training group and group –II (n - 15) acted as control group. Their age ranged between 18 to 25 years. The physical fitness variable cardio respiratory endurance was measured with 12 minutes run/walk test and skill variables namely dribbling was tested with SAI Hockey Skill Test. The training periods consists a total of eight weeks, which includes training for 5 days a week from evening 5 to 6 pm. The collected data were treated with paired ‘t’ test. The results of the study shows that aerobic training play a significant role in improving physical fitness variables namely cardio respiratory endurance and skill performance variables namely hitting and dribbling of college men hockey players.
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Cejudo, Antonio, Víctor Jesús Moreno-Alcaraz, Riccardo Izzo, Francisco Javier Robles-Palazón, Pilar Sainz de Baranda et Fernando Santonja-Medina. « Flexibility in Spanish Elite Inline Hockey Players : Profile, Sex, Tightness and Asymmetry ». International Journal of Environmental Research and Public Health 17, no 9 (9 mai 2020) : 3295. http://dx.doi.org/10.3390/ijerph17093295.

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Limited ranges of motion (ROM) have been considered as a relevant risk factor for team sports injuries. The main purposes of the current study were to describe the lower extremity ROM profile, muscular tightness and asymmetries in elite inline hockey players and to examine sex-related differences. Twenty professional inline hockey players from 2 Spanish National Teams (male and female) were measured of passive hip extension [HE], hip adduction with hip flexed 90° [HAD-HF], hip flexion with the knee flexed [HF-KF] and extended [HF-KE], hip abduction with the hip neutral [HAB] and hip flexed 90° [HAB-HF], hip external [HER] and internal [HIR] rotation, knee flexion [KF], ankle dorsiflexion with the knee flexed [ADF-KF] and extended [ADF-KE] ROMs of the dominant and non-dominant leg ROMs were taken. A paired t-test was carried out to assess asymmetries. ROM values were classified as “normal versus tightness”, and “normal versus asymmetry” according to the proposed reference values. The effect size for each variable was analyzed. Male team exhibited asymmetry in HF-KF (133.2° dominant vs. 129.8° non-dominant; p = 0.042; d = 0.7243 [moderate effect sizes]) and female team in ADF-KF (38.8° dominant vs. 41.0 non-dominant; p = 0.001; d = 0.6 [moderate effect sizes]) and HAB ROM (41.2° dominant vs. 38.8 non-dominant; p = 0.005; d = 1.1767 [moderate effect sizes]). Male players reported asymmetry in HAD-HF (n = 5), HER (n = 4) and HE (n = 3), whereas female players presented asymmetries in HER (n = 4), HE (n = 3) and KF (n = 2). Overall, 20–100% of all participants showed limited KF, HF_KE, HIR, HE, ADF_KF, HAD-HF, HF-KF, ADF_KE, HTR and HER ROM. The results of this study reinforce the requirement of prescribing exercises aimed at improving hip, knee and ankle ROM within everyday inline hockey practices. In addition, as some asymmetries were found, unilateral flexibility training should be considered where appropriate.
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Popkin, Charles A., Thomas A. Fortney, Ajay S. Padaki, Andrew J. Rogers, David P. Trofa, T. Sean Lynch, Markku Tuominen et Michael J. Stuart. « Injuries to Ice Hockey Referees and Linesmen : A Survey of International Ice Hockey Federation Officials ». Orthopaedic Journal of Sports Medicine 10, no 9 (1 septembre 2022) : 232596712211175. http://dx.doi.org/10.1177/23259671221117504.

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Background: Ice hockey referees and linesmen are at risk for musculoskeletal injuries because of the lack of protective equipment and contact with players, sticks, pucks, the ice surface and boards. Purpose: To quantify and analyze injuries reported by officials of the International Ice Hockey Federation (IIHF). Study Design: Descriptive epidemiology study. Methods: A 61-question survey tool was designed by an interdisciplinary team to evaluate musculoskeletal injuries experienced by ice hockey officials. This survey was administered to 600 active IIHF referees and linesmen. Only completed survey responses were included in the statistical analysis. Continuous variables were analyzed using unpaired t-tests, while categorical data were assessed utilizing chi-square tests. Results: Of the 600 surveys administered, 264 surveys were completed by officials from 45 countries (44% response rate). Of the respondents, 72% were male, and 28% were female, with a mean age of 31.1 ± 5.8 years. Officiating experience averaged 11.4 ± 6.0 years (6.3 ± 4.5 years with the IIHF). A total of 295 injuries were reported by 55% of the officials. Injuries occurred more frequently during games compared with training, and officials who worked year-round had more total injuries than those who took time off ( P = .03). The most common injuries involved the wrist and hand (n = 64 [22%]), head and face (n = 58 [20%]), and the knee (n = 47 [16%]). Wrist and hand trauma included 23 fractures. Knee and shoulder injuries were most likely to require surgery compared with other body areas ( P < .001); 30 officials underwent surgery because of an acute knee injury (10%). Injury prevention activities were effective at reducing injuries ( P = .04). Conclusion: Most ice hockey officials experienced musculoskeletal injuries during their career. The risk of trauma to the wrist and hand can possibly be reduced via equipment modifications including protective gloves. A greater emphasis should be placed on injury prevention programs and time away from officiating competitions.
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Eys, Mark A., James Hardy, Albert V. Carron et Mark R. Beauchamp. « The Relationship between Task Cohesion and Competitive State Anxiety ». Journal of Sport and Exercise Psychology 25, no 1 (mars 2003) : 66–76. http://dx.doi.org/10.1123/jsep.25.1.66.

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The general purpose of the present study was to determine if perceptions of team cohesion are related to the interpretation athletes attach to their precompetition anxiety. Specifically examined was the association between athlete perceptions of task cohesiveness (Individual Attractions to the Group– Task, ATG-T, and Group Integration–Task, GI-T) and the degree to which perceptions of the intensity of precompetition anxiety symptoms (cognitive and somatic) were viewed as facilitative versus debilitative. Participants were athletes (N = 392) from the sports of soccer, rugby, and field hockey. Each athlete completed the Group Environment Questionnaire (Carron, Widmeyer, & Brawley, 1985) after a practice session. A directionally modified version of the Competitive State Anxiety Inventory-2 (Martens, Burton, Vealey, Bump, & Smith, 1990) was completed just prior to a competition. Results showed that athletes who perceived their cognitive anxiety as facilitative had higher perceptions of both ATG-T and GI-T, χ2 (2, N = 260) = 8.96, p < .05, than athletes who perceived their cognitive anxiety as debilitative. Also, athletes who perceived their somatic anxiety as facilitative had higher perceptions of GI-T, χ2 (2, N = 249) = 5.85, p < .05.
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Malik, Dr Ishwar Singh, et Dr Meenu. « Study of Achievement Motivation of Sportsperson in Relation to their Pessimistic Attitudes ». International Journal for Research in Applied Science and Engineering Technology 10, no 3 (31 mars 2022) : 2072–74. http://dx.doi.org/10.22214/ijraset.2022.41051.

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Abstract:The study's goal was to look at sportspeople's achievement motivation in relation to their pessimistic attitudes. A total of 100 male athletes from various team sports were purposefully chosen to be the study's subjects. The individuals' ages ranged fro m 17 to 30, with the average age being 21 (+SD) years. Handball (20), Wushu (20), Cricket (20), Baseball (20), and Hockey (20) athletes with at least All India InterUniversity level participation in their respective sports disciplines were the subjects. To assess the attitude of Inter Varsity Sports person from different sports Pessimistic Attitude Scale (Parashar, 1998) was used. The collected data was analysed by computing Descriptive statistics, Independent t-test followed by Pearson’s Product moment correlation. The level of significance was set at 0.05 levels. Descriptive statistics, Independent ttest, and Pearson's Product Moment Correlation were used to analyse the collected data. The significance threshold was set at 0.05. Keywords: Achievement motivation, sports, participation.
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Wulandari, Fifit Yeti. « PROFIL HEART RATE RECOVERY SETELAH EXERCISE MAXIMAL ATLET PELAJAR SIDOARJO PADA CABANG OLAHRAGA DINAMIS ». JSES : Journal of Sport and Exercise Science 5, no 2 (30 septembre 2022) : 66–71. http://dx.doi.org/10.26740/jses.v5n2.p66-71.

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The main objective of this study was to determine the profile of Heart Rate Recovery (HRR) after conducting Exercise Maximal (EM) using speed tests, namely sprints, quantitative research methods while the research sample was 86 male student athletes consisting of 5 athletic athletes, 17 volleyball athletes, 22 hockey athletes, 15 roller skating athletes, 15 beach volleyball athletes and 3 court tennis athletes. the first data collection participants performed a sprint speed test of 30m. Furthermore, HRR is measured using the Polar type H10 tool using the Polar Team monitor system. Furthermore, HRR is recorded at minutes 1,2,3,4, and 5 shortly after doing maximum exercise. Furthermore, by using the paired t-test and friedman's test to see the significance of the difference in values every minute. Furthermore, to get a poor heart rate recovery profile, a calculation of ΔHRR with a maximum heart rate (HR) is carried out. the results showed a significant difference in HRR values of 1, 2, and 3 χ2F (2) = 170.02, p<0.001 using friedman's test. significant differences were also found in hrr values 4 and 5 using paired sample t-test HRR 4 (Mean=104.07, SD=8.838) and HRR 5 (Mean=95.35, SD=7.232) under conditions; t(85)=15.618, p=0.000. furthermore, in order for the difference in HRR to be meaningful, further tests were carried out by looking for Δ HRR1,2,3,4, and 5 with HRmaximal and obtained the values of ΔHRR 1 19.18±6.6, then in order Δ HRR 2: 29.45±7.10, Δ HRR 3: 38.06±6.88, Δ HRR 4:43.72±5.54, and ΔHRR 5:48.44±4.67. In this study, it can be proven that the HRR profile in student athletes can be used as an indicator of athletes' readiness to receive and participate in training programs.
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Wiggins, Anthony J., Obiajulu Agha, Agustin Diaz, Kristofer J. Jones, Brian T. Feeley et Nirav K. Pandya. « Current Perceptions of Diversity Among Head Team Physicians and Head Athletic Trainers : Results Across US Professional Sports Leagues ». Orthopaedic Journal of Sports Medicine 9, no 10 (1 octobre 2021) : 232596712110472. http://dx.doi.org/10.1177/23259671211047271.

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Background: Discrepancies in race, ethnicity, and sex among health care providers and their patients have been shown to affect the patient-provider relationship as well as the quality of care. Currently, minority and female representation among orthopaedic surgeons remains low. Given the large proportion of minority athletes and their degree of public visibility, professional sports serves as an important arena within which to analyze the diversity of health care providers. Purpose: To describe and evaluate the current level of diversity of head team physicians (HTPs) and head athletic trainers (ATCs), primarily in terms of race and sex, within men’s professional sports leagues in the United States. Study Design: Cross-sectional study. Methods: Five major US professional sports leagues were evaluated: National Basketball Association, National Football League, National Hockey League, Major League Soccer, and Major League Baseball. Publicly available data were collected to identify the HTPs and head ATCs for each team within these leagues. Two independent observers analyzed photographs and names of these individuals to determine his or her perceived race and sex, with disagreements being resolved by a third independent observer. Other physician data collected included graduate degree(s), specialty, and number of years in practice. Kappa coefficients (κ) were employed to evaluate interobserver reliability. Chi-square, Fisher exact, and t tests were used for statistical comparisons across leagues. Results: The κ values for perceived race were 0.85 for HTPs and 0.89 for head ATCs, representing near-perfect interobserver agreement. Minorities comprised 15.5% of HTPs and 20.7% of ATCs ( P = .24). Women comprised 3.9% of HTPs and 1.3% of head ATCs ( P = .017). The majority of HTPs were orthopaedic surgeons with medical doctorates. Female HTPs had significantly fewer years in practice compared with male HTPs (15.0 ± 4.9 vs 23.1 ± 9.6; P = .04). Conclusion: The lead physicians and athletic training providers for men’s professional sports teams demonstrated low rates of minority and female representation, denoting a highly visible area for discussing the role of increased diversity in health care.
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Wilson, Jasmin, Obiajulu Agha, Anthony J. Wiggins, Agustin Diaz, Kristofer J. Jones, Brian T. Feeley, Nirav K. Pandya et Stephanie E. Wong. « Gender and Racial Diversity Among the Head Medical and Athletic Training Staff of Women’s Professional Sports Leagues ». Orthopaedic Journal of Sports Medicine 11, no 2 (1 février 2023) : 232596712211504. http://dx.doi.org/10.1177/23259671221150447.

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Background: Despite increased awareness for promoting diversity, orthopaedics remains one of the least diverse specialties. Studying health care providers in women’s professional sports provides a unique opportunity to analyze gender and racial diversity. Hypotheses: There would be low female and minority representation across the various women’s professional sports leagues. There would be an increased number of female head certified athletic trainers (ATCs) when compared with head team physicians (HTPs). Study Design: Cross-sectional study. Methods: We evaluated the perceived race and sex of designated HTPs and ATCs in the Women’s National Basketball Association, National Women’s Soccer League, and National Women’s Hockey League. Type of doctorate degree, specialty, and years in practice were also collected. Kappa (κ) coefficient measurements were used to determine interobserver agreement on race. Categorical and continuous variables were analyzed using chi-square and t tests, respectively. Results: There were significantly more female ATCs than female HTPs (74.1% vs 37.5%; P = .01). Minority representation between HTPs and ATCs was not significantly different (20.8% vs 40.7%; P = .13). Black HTPs (12.5%) and Black ATCs (22.2%) composed the largest proportion among the minority groups. There was high interobserver agreement of perceived race across HTPs (κ = 1.0) and ATCs (κ = 0.95). Conclusion: Although there were more female ATCs than HTPs in women’s professional sports leagues, both cohorts lack perceived racial diversity. These data suggest an opportunity for diversification in medical and training staff of women’s professional sports.
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Kleitsch, Brianna, et Pamela Hodges Kulinna. « Tracking Student Outcomes Through Instructional Choices in Physical Education ». Physical Educator 79, no 5 (12 septembre 2022) : 491–513. http://dx.doi.org/10.18666/tpe-2022-v79-i5-11294.

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This study used self-determination theory to provide a better understanding of learner motivation in a physical education program. Students participated in a sports unit with choice in activities, equipment, partners, and competition as opposed to a traditional teacher-led activity unit. The objective was to determine differences in motivation and perceptions of physical education in grade school children. An alternating treatment design was used in which students experienced both a teacher-led unit and a student choice–driven sports unit. Fifty fifth-grade students from a suburban school in the Western United States participated in this study. Students were assessed through a number of parameters: physical activity enjoyment, situational motivation, fourth- and fifth-grade student attitudes toward physical education, pedometer readings, and interviews. This study used t tests and repeated-measures analyses of variance to explore differences based on condition (i.e., choices and/or teacher led) and gender, as well as common comparisons (i.e., trustworthiness measures) for the interview data. Students displayed significantly higher enjoyment ratings when they had the choice condition second (from the alternating treatment design), immediately before posttests, and boys rated enjoyment of physical education significantly higher than did girls. In another measure, the group with choices of the hockey unit was predominantly more active in the sport than those participating in the teacher-led activity. The interview themes elicited the following responses: (a) students expressed a desire for instructional choices, but not in team selections; (b) students loved sports, but they also wanted more fitness; and (c) students identified and valued instructional choices. The findings suggest that competence plays a critical role in physical education, and when students can choose the level of competition and play in small group games, they feel more competent, play more, and have higher enjoyment ratings within the physical education program.
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Beltrami, Fernando G., Linus Hanselmann et Christina M. Spengler. « Effects of combined interventions to optimize recovery during high-intensity exercises in trained individuals ». Current Issues in Sport Science (CISS) 8, no 2 (14 février 2023) : 021. http://dx.doi.org/10.36950/2023.2ciss021.

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Background Team sports such as ice hockey offer the opportunity of recovery breaks between high-intensity work intervals. Strategies aiming to mitigate fatigue during intermittent physical activity are seldom investigated in combination, although several different mechanisms of action exist, which might be cumulative and therefore beneficial for athletes. This study examined the effects of seven combined recovery interventions (enhanced recovery package, ERP) on exercise capacity during intermittent high-intensity cycling. Methods Sixteen trained men (age: 24.8 ± 3.4 y; maximal power output: 5.0 ± 0.5 W・kg-1) completed a repeated sprint exercise (RSE) protocol consisting of six 30-s cycling sprints with 3-min breaks between each sprint. The first sprint was always performed at a similar load, while sprints 2-6 were performed with the ergometer in cadence dependent mode (0.075 kg・kg-1). During the breaks, the ERP, Placebo, or Control protocols were applied, all on different days. The ERP condition combined 1) 3-min ice gel packs to the neck; 2, 3) 5-s mouth rinsing of a 10% carbohydrate and caffeine (6 mg・kg-1), 4) ingestion of 50 ml of a 6% carbohydrate solution, 5, 6) 30 s of all-out hyperventilation while breathing 100% O2 (hyperoxia); and finally, 7) potentiation maneuvers via performance of 3 half-squats at 75% of one maximal repetition. The placebo intervention masked the interventions except for the ice packs and potentiation maneuvers. Participants were told they were performing a simplified version with only the known beneficial interventions. Power output, heart rate, blood lactate concentration, rate of perceived exertion and gas exchange were compared between the ERP and Placebo conditions. Results Mean power output (W) was significantly higher for the ERP condition compared to Placebo (570 ± 74 W vs. 560 ± 71 W, t(15) = 4.603, P < 0.001, 95% CI diff = 5 – 14 W, dz = 1.15). The rate of power decrement over sprints 2-6 was very similar between trials (ERP -14.2 W per sprint, 95% CI = -21.6 – -6.8 W; Placebo -17.4 W per sprint, 95% CI = -24.7 – -10.2 W per sprint, P = 0.407). Mean heart rate was higher (3 ± 4 bpm, P = 0.012) for the ERP compared to the Placebo condition, as was breathing frequency (2.4 ± 4.0 breaths・min-1, P = 0.028) and respiratory exchange ratio (0.12 ± 0.06, P < 0.001). Oxygen uptake was 80 ± 109 ml・min-1 (P = 0.013) lower for ERP. No differences were found with regards to the rate of perceived exertion or blood lactate concentration. Conclusion ERP optimized recovery when applied during the breaks of a high-intensity repeated sprint exercise and shows a small but consistent increase in mean power output. It is possible that the ERP prevented a loss of aerobic efficiency. A top-down approach when tailoring packages for individual athletes might overcome the issue of small improvements that are difficult to detect when strategies are tested in isolation.
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Saunders, John. « Editorial ». International Sports Studies 43, no 2 (15 décembre 2021) : 1–4. http://dx.doi.org/10.30819/iss.43-2.01.

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That was the year that was! 2021 seemingly arrived just yesterday and now we are shortly to bid it farewell. I hailed its predecessor as heralding the hope for a new clarity of vision – the start of a new decade which promised much. However, I have become reminded that perfect 20/20 vision in the present may not necessarily lead to reliable predictions for the future. Further I have immediately been taken back to my undergraduate days and the unforgettable words of the great poet T. S Eliot in his poem Burnt Norton – the first of the four Quartets Time present and time past Are both perhaps present in time future, And time future contained in time past. If all time is eternally present All time is unredeemable. What might have been is an abstraction Remaining a perpetual possibility Only in a world of speculation. What might have been and what has been Point to one end, which is always present They are words that seem to ring particularly true not only to anyone contemplating their remorselessly advancing years and reflecting on a career nearing completion, but they also seem particularly apposite for the experiences of the last two years. The pandemic started by destroying our expectations and predictions for what lay ahead. It ensured that our best laid plans for our immediate futures would remain unfulfilled and thus unredeemable. Subsequently during the year, we were left to speculate as to our future pathways - not only with regard to our professional activities, but also concerning our personal and family relationships – with a whole world of separation between ourselves and those of our kith and kin domiciled in distant lands. Though for some it may have been no more than a regional border! Such forced isolation caused many of us to think backwards as well, reflecting on our past trajectories and recalling both mistakes and successes alike. Yet for many it became a time to substitute the incessant demands of work and its associated travel and busy-ness with former and forgotten pleasures. Leisurely walks with friends and family, the rediscovering of rhythms and tempos unimpeded by the daily demands of our diaries and other extraneous demands on our time that had required us to respond immediately and forgo the immediate needs of the surroundings and people closest to us. Above all, with the future in limbo and the past re-emerging in our minds, it reinforced the realisation that the present is what we really have, and it contains what is most important. For a time, the incessant chatter and noise of the media retained our attention, just as it had dominated our attention at the end of 2019. Yet, somehow during the year, the hype and frenzied reporting seems to have diminished in impact. This was nowhere more evident than in the responses to COP26 – the 26th United Nations Climate Change Conference in Glasgow, UK. Items in the press came thick and fast leading up to the event: predictions of planetary doom; political conflicts were highlighted as world leaders met or didn’t meet on the conference stage; appearances by the celebrities of the world; demonstrations aplenty. All of this breathless activity faded imperceptibly out of our consciousness as the serious (but more boring?) negotiations between nations started to take place, with much of the brilliance of the limelight now exhausted. The anticlimactic conclusion was judged by Boris Johnson, the chair and among the most optimistic of politicians, as achieving a 6 out of 10. Several positive outcomes were identified such as: commitments to end deforestation; a global methane pledge; a socalled ‘Breakthrough Agenda’, which committed countries to work together to accelerate the clean energy transition. Yet predictably, this was labelled by the critics and activists as too little too late. Although there are many who would see climate crisis as the major crisis that faces us – there are many other current crises of even more pressing and immediate concern to very many of us. The most urgent of which, would depend upon your own circumstances and where you might find yourself in the world. Examples from recent media would include: the loss of previously taken for granted freedoms in Hong Kong; increased fears for personal safety and the prospect of hunger and poverty in Afghanistan; the loss of political freedoms and the prospects of war in Belarus and the Ukraine; the prospect of secession leading to renewed civil war in Serbia; another military coup in Sudan; civil unrest in Cuba, etc etc.. On a global scale the movement of people leaving failed states and war-torn areas looking for the chance to make a better future, has continued to increase on a scale that the world is quite unable to manage. Sadly, even in the countries that are eagerly sought as destinies, there seem to be endless stories of strife, anxiety and anger to be told. The Economist provides the example of France, the ninth largest economy in the world with the 20th largest population of 67+ million. This pillar of Europe is facing a presidential election. Far from rejoicing in its prosperity, stability and proud history – the mood is sombre. Tune in to any French prime time talk show this autumn, and discussion rages over the country’s wretched decline. France is losing its factories and jobs, squeezing incomes and small businesses, destroying its landscapes and language, neglecting its borders and squandering its global stature. Its people are fractious and divided, if not on the verge of a civil war, as a public letter from retired army officers suggested earlier this year. At the second presidential primary debate for the centre-right Republicans party, on November 14th, the five candidates competed with each other to chronicle French disaster. Listen to the hard right, and it is “the death of France as we know it”. The anxiety is widespread. In a recent poll 75% agreed that France is “in decline”. When asked to sum up their mood in another survey, the French favoured three words: uncertainty, worry and fatigue. So, we are entitled to ask, what is happening in the world as we contemplate the path out of Covid? Should we not be expecting some feeling of optimism and gratitude that modern medicine has provided a way forward out of the pandemic through vaccination and new medical treatments? We should be putting the trials and tribulations of the pandemic behind us, embracing the lessons we have learnt and anticipating the benefits of the reassessments and recalibrations we have undergone over the last two years. Yet instead, we seem to be facing re-entry into a world of strife and dissension. It is a view that that would seem to encourage retreat into the comfort of a limited and familiar space, rather than striking out confidently and optimistically. So, to return to Eliot – perhaps we need to be reminded that the present is all we have. We will only be able to experience our future when we arrive there. Therefore, the pathway we choose to it, should be as smooth, rich and rewarding as possible. It should not be characterised by hedonism but rather by enhancing rather than diminishing the future. Every moment spent devaluing either our future or our past, is a moment that further undermines our present. This last point is particularly true when we fail to see our present in the context of both our past and future. One of the major contributions to this current angst within our societies, appears to be the cultural wars being waged by the warriors of WOKE. Passing judgements on figures from a previous time, without a clear understanding of the context in which they operated makes absolutely no sense. It is akin to a capital punishment abolitionist vilifying the heroes of the French Revolution for allowing Madame Guillotine to be the agent of their retribution against the aristocracy. So, it is with defacing statues of those who lived and acted in far different times and were the product of the dominant values and beliefs of that time. It is indeed an act of vandalism. If we remove all evidence of the history to which such people belonged, how can we expect to learn from that time and ensure that the world does indeed move forward? Although we are talking about the context provided by time – this is equally true of all the contexts in which we currently find ourselves. It is impossible to understand human behaviour without knowing and understanding the context in which it occurs. This is a key principle of the science of human behaviour. Alas it is a principle that has been neglected in the sport sciences in recent years. Whereas research into the physiology, psychology and biomechanics of sport has flourished, too often it is reported in a way that fails to adequately take account of the context in which it occurs. It is why so many findings are ungeneralisable and remain in the laboratory rather than making the journey out onto the playing field of life. Understanding the history and the social context within which sport is practised is essential if scientists and professionals are going to be able to make comparisons between findings gained in different settings. Comparative studies in sport and physical education play an important role in enabling knowledge and understanding about these institutions to be widely shared. Our journal therefore has an important role to play in the development and sharing of knowledge and understanding between scientists and professionals in different settings. This is a role that has been filled by our journal over the last forty-three years. I am pleased to be able to report that the society (ISCPES), following a break of four years in activity, will be meeting again at the end of this year. The meeting which can be attended online will be hosted by Lakshmibai National College of Physical Education in India. Details are provided in this edition, and I commend this important meeting to you. That there is an interest and demand in comparative and international studies is clear from the number of submissions we have been receiving for our journal. The chance to meet with fellow researchers and colleagues in real time, if not actually face to face, is to be welcomed. It is my fervent hope that this will lead to continuing growth in interest in our multidiscipline and internationally focused field. I congratulate the organisers for their initiative. I would also like to pay tribute to former president Dr Walter Ho of the University of Macau, for his role in this as well as for his continuing support of our journal. So, I come to commend to you the contributions of this latest volume. They come from four different continents and as such provide a representative cross section of our readership. The topics about which they write give an example of the range of understanding and practices that can usefully be shared amongst us. In our first paper Croteau, Eduljee and Murphy report on the health, lifestyle behaviours and well-being of international Masters field hockey athletes. The Masters sport movement provides an important example of why sport represents a solid investment in assisting individuals to commit to health supporting physical activity across the lifespan. The study is particularly interesting, as it provides evidence of the broader sense of wellbeing to be gained by ongoing participation and also the fact that this benefit seems to apply even in the geographic and culturally different environments provided by life in Europe, North America and, Asia and the Pacific. Our second paper by Kubayi, Coopoo and Toriola addresses a familiar problem – the breakdown in communication between researchers and scientists in sport and the coaches who work with the athletes. The context for this study is provided by elite performance level sport in South Africa and the sports of soccer, athletics, hockey and netball. It is concluded that the sports scientists and academics need to be encouraged to make their work more available by presenting it more frequently face to face during coaching workshops, seminars, clinics and conferences. However, the caveat is that this needs to be done in a way that is understandable, applicable and relevant to helping the coach make effective decisions and solve problems in a way that benefits the athletes as the end product. A team of medical and pedagogical scientists from Gadjah Mada University in Indonesia provide the Asian input to this volume. They raise a concern over the issue of safety and risk in physical education and how well specialists in the subject are prepared in the area of sport injury management. Hidayat, Sakti, Putro, Triannga, Farkhan, Rahayu and Magetsari collaborated in a survey of 191 physical education teachers. They concluded that there was a need for better and more sustained teacher education on this important topic. PE teacher training should not only upgrade teachers’ knowledge but also increase their self-perceptions of competence. PE teachers should be provided with enhanced training on sports injuries and Basic Life Support (BLS) skills, in order to improve the safety and maximize the benefits of PE classes. It is a finding that could usefully be compared with current practices in other countries and settings, given the common focus in the PE lesson on children performing challenging tasks in widely varying contexts. Our final paper by Rojo, Ribeiro and Starepravo takes a very much broader perspective. Sport migration is a relatively new, specialised but expanding field in sports studies. This paper is however significant not for what it can tell us about current knowledge in sport migration, but rather in what it tells us about the way knowledge is gathered and disseminated in a specialist area such as this. Building on the ideas of Bourdieu, they demonstrate how the field of knowledge is shaped by the key actors in the process and how these key actors serve to gather and use their academic capital in that process. As such fields of knowledge can become artificially constricted in both the spaces and cultures in which they develop. The authors highlight a very real problem in the generation and transmission of academic knowledge, and it is one that International Sports Studies is well positioned to address. In conclusion, may I encourage you in sharing with these papers to actively engage in reflecting on the importance of the varying contexts these authors bring and how sensitivity to this can enlarge and deepen our own practices and understanding. John Saunders Brisbane, November 2021
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Roy, Xavier, Simona E. Gavrila et Pierre Sercia. « Countermovement Jump Performance and Team Membership of Youth Female and Male Ice Hockey Players ». International Journal of Strength and Conditioning 3, no 1 (16 février 2023). http://dx.doi.org/10.47206/ijsc.v3i1.146.

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This study compared the CMJ performance of two teams of young male ice hockey players and two teams of female ice hockey players of different levels of competition and examined whether a specific CMJ variable could predict Prep or Varsity team membership and thus be used as part of the talent identification process for ice hockey. A retrospective analysis of six CMJ variables collected via force platforms was conducted. Independent samples t-tests were used to compare the means of the six CMJ variables between the male teams and female teams and a logistic regression analysis was performed to compare team membership to Prep or Varsity teams with the specific CMJ variables. Significant differences (p < 0.05) were found between Prep and Varsity male players in four CMJ variables, all in favor of the Varsity group: mRSI (p = 0.016, ES = -0.860), peak propulsive power (p = 0.022, ES = -0.811), time to take-off (p = 0.005, ES = 1.008), and braking rate of force development (p = 0.005, ES = -1.025). For the female players, only countermovement depth was significantly different (p = 0.030, ES = 0.841) between Prep and Varsity teams, in favor of the Varsity group. Following the logistic regression analysis, only countermovement depth (Wald's p-value = 0.011) could predict team membership to the Prep or Varsity group for the girls while no CMJ variables could significantly predict team membership to the Prep or Varsity teams for the boys. Results from this study suggest that other CMJ kinetic variables should be used when comparing CMJ performance between athletes rather than only using jump height. In addition, countermovement depth can be used by coaches of female ice hockey players to predict team membership.
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Campbell, Sandy. « My First NHL® Book Series (Hockey Shapes, Hockey Colours, Hockey 123, Hockey Opposites, Hockey Animals, Hockey ABC) by Ch. Jordan ». Deakin Review of Children's Literature 2, no 2 (9 octobre 2012). http://dx.doi.org/10.20361/g2730v.

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Jordan, Christopher. My First NHL® Book Series (Hockey Shapes, Hockey Colours, Hockey 123, Hockey Opposites, Hockey Animals, Hockey ABC). Toronto: Tundra Books, 2011. Print [Board Books]. These six volumes are board books, with thick pages that would be difficult to tear and wipe-able surfaces that will withstand sticky baby fingers. They cover the standard content of first books for pre-readers, but using NHL® examples. In some of the books, the NHL® examples work well. For example in Hockey 123, there are 2 hockey nets, 5 pairs of skates, and 11 whistles. In other books the examples seem forced and awkward. For example, in Hockey Opposites, “fast” and “slow” are illustrated by a forward and a goalie, respectively. It would be very difficult for a child at the board-book reading stage to understand what a forward and a goalie are, much less who moves at what speed. Moreover, I think most people would recognize that while goalies do not usually move quickly around the rink, their movements are lightning-fast and a “slow” goalie wouldn’t have a job in the NHL®. With the exception of Hockey 123, these books are too complex for pre-readers. Most of the six books contain text which is at a Grade 6 reading level or higher. For example, in Hockey Shapes, the description which accompanies the “leaf” shape begins, “[t]here are many different species of leaves, ranging in colour, shape, and size…”. This is one of several clues that these books are meant as much for adults who will be reading them aloud, as for children. In Hockey ABC many of the images chosen to illustrate the alphabet will appeal more to parents than to children. In this book, “G” is not for the obvious “goalie”, but for Gretzky, whom children today will never see play. Too often Jordan relies on photographs of players, which are complex images, for his illustrations. In Hockey Animals, for example, instead of using just the team symbol containing the animal shape, Jordan uses full-length player shots, where the logo on the jersey is a tiny part of the image. There is a reason that board books usually contain simple shapes, bold colours and single syllable words. It is hard to imagine sitting with a 1-year-old child on your lap reading Hockey ABC and saying, ‘Now you try saying this, sweetie… “O is for Ovechkin”’. However, if you assume that these books are really for hockey-crazed parents, then they will probably find readers. Recommended with reservations: 2 out of 4 stars Reviewer: Sandy Campbell Sandy is a Health Sciences Librarian at the University of Alberta, who has written hundreds of book reviews across many disciplines. Sandy thinks that sharing books with children is one of the greatest gifts anyone can give.
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Mody, Kush S., Jeffrey Henstenburg et Sommer Hammoud. « Team Physicians in Men’s and Women’s Professional Sports Leagues : Gender Representation and Career Path Analysis ». Orthopaedic Journal of Sports Medicine 11, no 7 (1 juillet 2023). http://dx.doi.org/10.1177/23259671231182991.

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Background: The most common orthopaedic fellowship is for sports medicine, but few fellowship-trained orthopaedic surgeons fill roles as team physicians. Gender disparities within the field of orthopaedics, coupled with male-dominated professional sports leagues in the United States, may lead to lower representation of women as professional team physicians. Purpose: To (1) determine the career path trajectories of current head team physicians in professional sports, (2) quantify gender disparities across team physician representation, and (3) further characterize professional profiles of team physicians appointed to women’s and men’s professional sports leagues in the United States. Study Design: Cross-sectional study. Methods: This is a cross-sectional study of professional sports head team physicians in 8 major American sports leagues: American football (National Football League), baseball (Major League Baseball), basketball (National Basketball Association and Women’s National Basketball Association), hockey (National Hockey League and National Women’s Hockey League), and soccer (Major League Soccer and National Women’s Soccer League). Online searches were used to compile information on gender, specialty, medical school, residency, fellowship, years in practice, clinical practice type, practice setting, and research productivity. Differences according to league type (men’s vs women’s leagues) were analyzed with the chi-square test for categorical variables, t test for continuous variables, and Mann-Whitney U test for nonparametric means. Bonferroni correction was applied for multiple comparisons. Results: Within the 172 professional sports teams, 183 head team physicians were identified, including 170 men (92.9%) and 13 women (7.1%). Team physicians in both men’s and women’s sports leagues were predominantly men. Overall, 96.7% of team physicians in men’s leagues were men, and 73.3% of team physicians in women’s leagues were men ( P < .001). The most common physician specialties were orthopaedic surgery (70.0%) and family medicine (19.1%). Compared with team physicians in women’s leagues, those in men’s leagues were more likely to be orthopaedic surgeons (40.0% vs 71.9%, respectively; P = .001) and to have more experience (15.9 vs 22.4 years, respectively; P < .001). Conclusion: Study findings indicated disparities in gender, practice experience, and physician specialty representation among team physicians in men’s versus women’s professional sports leagues.
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Boisvert, Matthieu M., Todd M. Loughead et Krista J. Munroe-Chandler. « The implementation and evaluation of an athlete leadership development program with male youth ice hockey players ». Frontiers in Psychology 13 (14 octobre 2022). http://dx.doi.org/10.3389/fpsyg.2022.648039.

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The purpose of the current study was to implement and evaluate an athlete leadership development program in youth boys ice hockey. The sample consisted of 14 male U17 hockey players (M = 16.46, SD = 0.78) from one team playing in a competitive hockey league. The players participated in six leadership intervention workshops over the course of the season, and completed inventories measuring athlete leadership behaviours, cohesion, and collective efficacy pre-and post-intervention. In addition, a focus group was conducted to assess the impact of the athlete leadership development program at the end of the season. Bayesian t tests showed that the leadership program generally helped to maintain levels of athlete leadership behaviours, cohesion, and collective efficacy pre-and post-intervention. The results of the focus group following the intervention revealed the players believed the leadership development program helped buffer against the negative effects of their on-ice performances.
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Kiel, A., A. Hof zum Berge, K. Schwarzenbrunner, K. Otto, F. Loch, M. Kellmann et S. Jakowski. « Sleep in German female youth national ice hockey athletes ». Somnologie, 18 novembre 2022. http://dx.doi.org/10.1007/s11818-022-00390-4.

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Abstract Background Adequate sleep is of great importance in recovering from and preparing for training and competition. Objective This study aimed to investigate subjective sleep quality and daytime sleepiness of the German women’s junior national ice hockey team before and after a training camp immediately preceding the World Championship Division IA tournament. Materials and methods Twenty athletes (16.40 ± 0.68 years) completed German paper–pencil versions of the Pittsburgh Sleep Quality Index (PSQI) and the Epworth Sleepiness Scale (ESS) before the training camp (T1, day 1) and on the final day of the training camp (T2, day 7). Results Paired t-tests indicated a significant decrease in PSQI global scores from pre- to post-training camp assessments (t = 2.33, p = 0.031, df = 19), with a medium effect size (d = 0.52). Regarding ESS global scores, results of the paired t-test indicated no significant pre- to post-training camp differences (t = 0.67, p = 0.510, df = 19) and the effect size was trivial (d = 0.15). Mean scores were reduced for both PSQI (T1 = 5.90 ± 2.36, T2 = 4.65 ± 2.18) and ESS (T1 = 9.00 ± 3.58, T2 = 8.60 ± 4.04) after the training camp. When analyzed according to the position of the players, no statistically significant intergroup differences were found. Conclusion This study underlines the need for monitoring and screening youth athletes’ sleep before special sports events in order to identify a potential need for intervention as early as possible, to prevent serious consequences for athletes’ performance capability and well-being.
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Ganapathy, N., et K. Rangaraj. « COMPARTIVE STUDY OF SELECTED PHYSICAL FITNESS COMPONENTS BETWEEN TEAM PLAYERS AND INDIVIDUAL PLAYERS OF COLLEGE LEVEL MEN STUDENTS ». INTERNATIONAL JOURNAL OF SCIENTIFIC RESEARCH, 1 février 2023, 26–27. http://dx.doi.org/10.36106/ijsr/0348353.

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The aim of the present study was to compare the selected physical tness components between team players and individual players of college level men students. The subjects for this study were conned to SRM Group of Institution college students. Their age s ranged from 20 to 25 years. 15 players were selected from football and hockey and 15 players from individual events (like throwing, jumping, and sprinting events). The study was conducted only for male students and the physical tness components (arm strength, leg explosive strength, speed and endurance) were selected for this study. The mean (M) and the standard deviation (SD) of the collected data were computed. To nd out the signicance of difference between the two means, the 't' ratio was determined. The level of signicance was xed at 0.05 level of condence
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Hoch, Matthew C., Lauren A. Welsch, Emily M. Hartley, Cameron J. Powden et Johanna M. Hoch. « Y-Balance Test Performance After a Competitive Field Hockey Season : A Pretest-Posttest Study ». Journal of Sport Rehabilitation 26, no 5 (1 septembre 2017). http://dx.doi.org/10.1123/jsr.2017-0004.

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Context: The Y-Balance Test (YBT) is a dynamic balance assessment used as a preseason musculoskeletal screen to determine injury risk. While the YBT has demonstrated excellent test-retest reliability, it is unknown if YBT performance changes following participation in a competitive athletic season. Objective: Determine if a competitive athletic season affects YBT performance in field hockey players. Design: Pretest-posttest. Setting: Laboratory. Participants: 20 NCAA Division I women's field hockey players (age = 19.55 ± 1.30 y; height = 165.10 ± 5.277 cm; mass = 62.62 ± 4.64 kg) from a single team volunteered. Participants had to be free from injury throughout the entire study and participate in all athletic activities. Interventions: Participants completed data collection sessions prior to (preseason) and following the athletic season (postseason). Between data collections, participants competed in the fall competitive field hockey season, which was ~3 months in duration. During data collection, participants completed the YBT bilaterally. Main Outcome Measures: The independent variable was time (preseason, postseason) and the dependent variables were normalized reach distances (anterior, posteromedial, posterolateral, composite) and between-limb symmetry for each reach direction. Differences between preseason and postseason were examined using paired t tests (P ≤ .05) as well as Bland-Altman limits of agreement. Results: 4 players sustained a lower extremity injury during the season and were excluded from analysis. There were no significant differences between preseason and postseason reach distances for any reach directions on either limb (P ≥ .31) or in the between-limb symmetries (P ≥ .52). The limits of agreement analyses determined there was a low mean bias across measurements (≤1.67%); however, the 95% confidence intervals indicated there was high variability within the posterior reach directions over time (±4.75 to ± 14.83%). Conclusion: No changes in YBT performance were identified following a competitive field hockey season in Division I female athletes. However, the variability within the posterior reach directions over time may contribute to the limited use of these directions for injury risk stratification.
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Summer, Luanna C., Ryan Cheng, Jay T. Moran, Michael Lee, Anthony J. Belanger, Walter L. Taylor et Elizabeth C. Gardner. « Changes in Body Composition and Athletic Performance in National Collegiate Athletic Association Division I Female Field Hockey Athletes Throughout a Competitive Season ». Journal of Strength and Conditioning Research, 6 octobre 2023. http://dx.doi.org/10.1519/jsc.0000000000004591.

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Abstract Summer, LC, Cheng, R, Moran, JT, Lee, M, Belanger, AJ, TaylorIV, WL, and Gardner, EC. Changes in body composition and athletic performance in National Collegiate Athletic Association Division I female field hockey athletes throughout a competitive season. J Strength Cond Res XX(X): 000–000, 2023—The purposes of this study were (a) to analyze the changes in total and regional body composition measurements in a National Collegiate Athletic Association (NCAA) Division I female field hockey team throughout a 17-game competitive season using dual X-ray absorptiometry (DXA); (b) to examine improvements, if any, in athletic performance measures after a season; and (c) to report on the relationship between these body composition changes and changes in athletic performance. Preseason and postseason dual-energy DXA and performance data from the 2019–2020 season were retrospectively identified for 20 field players (forwards, midfielders, and defenders). Body composition data included total and regional fat mass, lean mass, and body fat percentage, whereas athletic performance measures included the vertical jump, 10-yard dash, and pro-agility (5-10-5) shuttle run. All variables were quantitative and analyzed using paired t-tests or its nonparametric equivalent and an alpha level of p < 0.05 was used to determine significance. After a competitive season, athletes had significant decreases in fat mass and increases in lean mass in their arms, legs, trunks, gynoids, and total body measurements. Android fat mass and body fat percentage also decreased. Athletes performed significantly better on the pro-agility shuttle run at the end of the season, but no significant differences were observed in other performance metrics. Moderate correlations were observed between changes in body composition (total fat mass and total lean mass) and changes in athletic performance. Our study provides a novel, longitudinal assessment of body composition and athletic performance for elite female field hockey athletes that will help trainers and coaches better understand how these variables change throughout a season and allow them to better prepare their players for competitive success.
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Brinkbäumer, Mark, Christian Kupper, Lukas Reichert et Karen Zentgraf. « Dual-task costs in speed tasks : a comparison between elite ice hockey, open-skill and closed-skill sports athletes ». Frontiers in Psychology 15 (15 juillet 2024). http://dx.doi.org/10.3389/fpsyg.2024.1357312.

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IntroductionIce hockey is a high pace sports game that requires players to integrate multiple skills. Players face perceptive, cognitive, and motor tasks concurrently; hence, players are regularly exposed to dual- or multi-task demands. Dual-tasking has been shown to lead to decreased performance in one or both performed tasks. The degree of performance reductions might be modulated by the exhaustion of cognitive resources. Literature on dual-task paradigms that combine sport-relevant elements is scarce. Therefore, a novel paradigm combining cyclical speed of the lower extremities and concurrent visuo-verbal speed reading was tested and validated. Additionally, to understand the nature of dual-task costs, the relationship between these costs and cognitive performance was assessed. We hypothesized occurrence of dual-task costs in all athletes without relationship to single task performance. Differences in dual-task cost were expected between open-skill and closed-skill sports, as well as differing expertise levels. Level of cognitive function was expected to explain some variance in dual-task cost.MethodsA total of 322 elite athletes (120 ice hockey, 165 other team sports, 37 closed-skill sports) participated in this study. Each athlete performed a tapping task, a visuo-verbal speed-reading task, and both tasks simultaneously. All ice hockey athletes performed additional cognitive tests assessing processing speed, spatial working memory, sustained attention, two choice reaction time, and motor inhibition.ResultsThe results of paired-sample t-tests confirmed significant dual-task costs for all sport groups (p &lt; 0.001). Single-task performance and dual-task costs correlated weakly in a positive direction. A one-way ANOVA revealed significantly greater costs in closed-skill sports athletes than in ice hockey and other sports athletes. No significant differences in dual-task costs were found between teams of differing expertise levels. Lastly, no significant regression model was found to predict dual-task costs from cognitive test performance.DiscussionOur study suggests that this novel dual-task paradigm was successful in inducing dual-task costs for all elite athletes. Since it distinguishes between closed-skill and open-skill sports athletes, it might be a valuable diagnostic tool for performance and for talent development of open-skill athletes. Dual-task costs could not be relevantly predicted via cognitive performance measures, questioning cognitive resource theories as an explanation for dual-task costs.
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Gisladottir, Thordis, Miloš Petrović, Filip Sinković et Dario Novak. « The relationship between agility, linear sprinting, and vertical jumping performance in U-14 and professional senior team sports players ». Frontiers in Sports and Active Living 6 (9 avril 2024). http://dx.doi.org/10.3389/fspor.2024.1385721.

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AimThe aim of this paper is to determine the relationship between the modified agility T-test (change of direction speed ability), 20-meter sprint test (linear speed ability), and countermovement jump test (vertical jumping performance) in U-14 and professional senior team sports players.MethodsThe sample included 78 (59 female and 19 male) U-14 athletes (age 11.70 ± 1.33 years, height 153.00 ± 12.20 cm and body mass 47.10 ± 11.20 kg) and 43 (18 female and 25 male) senior professional athletes (age 24.80 ± 6.58 years, height 169.00 ± 9.13 cm and body mass 71.20 ± 15.10 kg). Both samples participated in different team sports including basketball, field hockey, and football. Participants underwent a series of tests to assess their speed, change of direction speed, and explosive power. Speed assessments involved 20-meter sprints (sec), while change of direction speed was measured using the modified agility T-test (sec). Explosive power was evaluated through countermovement jumps (CMJ), where concentric mean force (N), concentric peak force (N), concentric peak velocity (m/s), eccentric peak force (N), jump height (cm), peak power (W), peak power/BM (W/kg), RSI (m/s) and vertical velocity (m/s) were determined. Pearsońs product moment-correlation coefficient (r) served to determine correlations and linear regression was conducted to explain the relationship between the dependent variable (CODS) and independent variables (S20 m and CMJ). The level of statistical significance was set at p &lt; 0.05 and the confidence interval was 95%.ResultsThe Pearson product-moment correlation analysis in the U-14 athletes indicated no correlation (r = 0.11, p = 0.34) between the 20-meter linear sprint speed and the modified change of direction T-test. Additionally, the results revealed that 4 out of 10 CMJ values showed a significant moderate correlation (r = 0.3, p &lt; 0.05) between CMJ and the modified change of direction T-test. In contrast, senior players exhibited statistically significant correlations in all variables. A significant correlation (r = 0.90, p = 0.01) was found between 20-meter linear sprint speed and the modified change of direction T-test, while CMJ values showed a range of correlations from moderate to large. In both competitive categories, according to the linear regression model, only linear sprint speed over 20-meters significantly explained (p &lt; 0.05) the CODS speed ability, while the other CMJ parameters did not reach the significance level (p &gt; 0.05).ConclusionThe study emphasized the influence of explosive power performance (CMJ) and linear speed (S20 m) on agility (CODS) within the sample, particularly among professional senior team sports players. These findings indicate that agility, linear sprinting, and jumping abilities may share common underlying factors.
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