Relevant bibliographies by topics / Muscle microtrauma

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  2. Dissertations / Theses
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Academic literature on the topic 'Muscle microtrauma'

Author: Grafiati
Published: 4 June 2021
Last updated: 14 February 2022

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Journal articles on the topic "Muscle microtrauma"

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Smith, Tianqi “Tenchi” Gao, and Sean Gallagher. "Impact of Loading and Rest Intervals on Muscle Microtrauma." Proceedings of the Human Factors and Ergonomics Society Annual Meeting 59, no. 1 (September 2015): 1217–21. http://dx.doi.org/10.1177/1541931215591191.

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2

Micheli, Lyle J. "The Exercising Child: Injuries." Pediatric Exercise Science 1, no. 4 (November 1989): 329–35. http://dx.doi.org/10.1123/pes.1.4.329.

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The majority of injuries in exercising children affect the musculoskeletal system. These injuries result from two mechanisms: single, acute macrotrauma or repetitive microtrauma. The injuries resulting from repetitive microtrauma—overuse injuries—appear to be occurring with increased frequency in this age group. A number of risk factors for overuse injury from exercise have been identified, including training error, muscle imbalance, anatomic malalignment, footwear, surface, nutritional factors, and cultural factors. The development of scientific criteria for exercise prescription in this age group that will enhance fitness and avoid injury awaits techniques for noninvasive assessment of musculoskeletal tissue fitness. In the interim, many of these injuries can be prevented or decreased in severity by slow progression of exercise intensity and qualified adult supervision.
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DASTGIR, NABEEL, KAMRAN KHALID BUTT, and RIZWAN AHMED KHAN. "BILATERAL ADDUCTOR ABCESS FOLLOWING GRION INJURY." Professional Medical Journal 19, no. 01 (January 3, 2012): 134–36. http://dx.doi.org/10.29309/tpmj/2012.19.01.1947.

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Pubic pain is a common symptom in athletes and in soccer players.Its cause can be difficult to determine. We report a case in a14-year-old boy who presented with bilateral adductor muscle abcesses following a trivial injury to the groin. The etiology, radiological findingsand treatment, along with literature review are discussed. Introduction: The main causes of pubic pain after sports are thought to be sportsrelated microtrauma to the pubic rami or symphysis and lesions of the oblique, rectus or adductor muscles or their tendons1,2. Osteitis pubisrefers to a painful inflammation of the periosteum, bone, cartilage and ligamentous structures of the anterior half of the pelvis. Pubicosteomyelitis is an uncommon entity, accounting for less than 1% of all cases of Heamatogenous osteomyelitis. We report a case of bilateraladductor muscle abcess six week after a trivial injury in sports.
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Hammerman, Malin, Per Aspenberg, and Pernilla Eliasson. "Microtrauma stimulates rat Achilles tendon healing via an early gene expression pattern similar to mechanical loading." Journal of Applied Physiology 116, no. 1 (January 1, 2014): 54–60. http://dx.doi.org/10.1152/japplphysiol.00741.2013.

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Mechanical loading increases the strength of healing tendons, but also induces small localized bleedings. Therefore, it is unclear if increased strength after loading is a response to mechanotransduction or microtrauma. We have previously found only five genes to be up-regulated 15 min after a single loading episode, of them four were transcription factors. These genes are followed by hundreds of genes after 3 h, many of them involved in inflammation. We now compared healing in mechanically unloaded tendons with or without added microtrauma induced by needling of the healing tissue. Nineteen rats received Botox into the calf muscle to reduce loading, and the Achilles tendon was transected. Ten rats were randomized to needling days 2–5. Mechanical testing on day 8 showed increased strength by 45% in the needling group. Next, another 24 rats were similarly unloaded, and 16 randomized to needling on day 5 after transection. Nineteen characteristic genes, known to be regulated by loading in this model, were analyzed by qRT-PCR. Four of these genes were regulated 15 min after needling. Three of them (Egr1, c-Fos, Rgs1) were among the five regulated genes after loading in a previous study. Sixteen of the 19 genes were regulated after 3 h, in the same way as after loading. In conclusion, needling increased strength, and there was a striking similarity between the gene expression response to needling and mechanical loading. This suggests that the response to loading in early tendon healing can, at least in part, be a response to microtrauma.
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Lutter, Christoph, Andreas Schweizer, Volker Schöffl, Frank Römer, and Thomas Bayer. "Lumbrical muscle tear: clinical presentation, imaging findings and outcome." Journal of Hand Surgery (European Volume) 43, no. 7 (March 28, 2018): 767–75. http://dx.doi.org/10.1177/1753193418765716.

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The incidence of lumbrical muscle tear is increasing due to the popularity of climbing sport. We reviewed data from 60 consecutive patients with a positive lumbrical stress test, including clinical examination, ultrasound and clinical outcomes in all patients, and magnetic resonance imaging in 12 patients. Fifty-seven patients were climbers. Lumbrical muscle tears were graded according to the severity of clinical and imaging findings as Grade I–III injuries. Eighteen patients had Grade I injuries (microtrauma), 32 had Grade II injuries (muscle fibre disruption) and 10 had Grade III injuries (musculotendinous disruption). The treatment consisted of adapted functional therapy. All patients completely recovered and were able to return to climbing. The healing period in Grade III injuries was significantly longer than in the patients with Grade I or II injuries ( p < 0.001). We recommend evaluation of specific clinical and imaging findings to grade the injuries and to determine suitable therapy. Level of evidence: IV
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An, Tonya, John Garlich, and David Kulber. "Yoga-Induced Myositis Ossificans Traumatica of the Scapholunate Ligament." Journal of Wrist Surgery 08, no. 01 (June 26, 2018): 080–83. http://dx.doi.org/10.1055/s-0038-1661354.

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Background Myositis ossificans traumatica (MOT) involves the heterotopic development of lamellar bone after a traumatic injury. Despite being termed “myositis,” MOT is not limited to muscle but rather can involve tendons, fat, and fascia. “Traumatica” reflects that lesions are usually associated with a history of significant trauma, that is, fractures or surgery; however, many reports suggest they can also be linked to repetitive low-energy insults. In both cases, the inflammatory response secondary to tissue injury generates a proliferative osteoblastic cascade. Case Description We present a case of persistent wrist pain in a 43-year-old woman associated with yoga activities. Her radiographic studies demonstrated partial scapholunate (SL) ligament tear and an associated mass lesion. Surgical pathology revealed MOT involving the SL ligament. Literature Review MOT lesions in the upper extremity are usually localized around the elbow, and cases in the hand are relatively rare. There are no prior reports of occurrences within the wrist joint or in association with the SL ligament. However, biomechanical studies have quantified significant mechanical strains across the SL interval during various yoga poses. This pattern of microtrauma is capable of generating MOT. Clinical Relevance Upper extremity weight-bearing positions are common in yoga and subject the wrist, especially the SL interval, to high mechanical strains. This pattern of microtrauma should lead the clinician to suspect MOT when encountering a mass in the wrist, but malignancy and infection must be ruled out.
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Prabhakar, Sharad, and Radhakant Pandey. "Shoulder Injuries in Cricketers." Journal of Postgraduate Medicine, Education and Research 49, no. 4 (2015): 194–96. http://dx.doi.org/10.5005/jp-journals-10028-1174.

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ABSTRACT Shoulder injuries are very common in cricketers. Throwing athletes in cricket (both bowlers and fielders) are prone to shoulder injuries secondary to the large amount of forces generated, the resultant very high velocities and the repetitive nature of the throwing action. The shoulder joint has to balance mobility vs stability. Athletes exhibit adaptive changes that develop from the repetitive microtrauma following overhead throwing. The article discusses in detail how altered scapular kinematics, rotator cuff dysfunction with altered muscle strength patterns, internal impingement combined with anatomical adaptive bony and soft tissue changes causing a glenohumeral internal rotation deficit, predispose the cricketer to shoulder injury. How to cite this article Prabhakar S, Pandey R. Shoulder Injuries in Cricketers. J Postgrad Med Edu Res 2015;49(4): 194-196.
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Sakelliou, Alexandra, Ioannis G. Fatouros, Ioannis Athanailidis, Dimitrios Tsoukas, Athanasios Chatzinikolaou, Dimitris Draganidis, Athanasios Z. Jamurtas, et al. "Evidence of a Redox-Dependent Regulation of Immune Responses to Exercise-Induced Inflammation." Oxidative Medicine and Cellular Longevity 2016 (2016): 1–19. http://dx.doi.org/10.1155/2016/2840643.

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We used thiol-based antioxidant supplementation (n-acetylcysteine, NAC) to determine whether immune mobilisation following skeletal muscle microtrauma induced by exercise is redox-sensitive in healthy humans. According to a two-trial, double-blind, crossover, repeated measures design, 10 young men received either placebo or NAC (20 mg/kg/day) immediately after a muscle-damaging exercise protocol (300 eccentric contractions) and for eight consecutive days. Blood sampling and performance assessments were performed before exercise, after exercise, and daily throughout recovery. NAC reduced the decline of reduced glutathione in erythrocytes and the increase of plasma protein carbonyls, serum TAC and erythrocyte oxidized glutathione, and TBARS and catalase activity during recovery thereby altering postexercise redox status. The rise of muscle damage and inflammatory markers (muscle strength, creatine kinase activity, CRP, proinflammatory cytokines, and adhesion molecules) was less pronounced in NAC during the first phase of recovery. The rise of leukocyte and neutrophil count was decreased by NAC after exercise. Results on immune cell subpopulations obtained by flow cytometry indicated that NAC ingestion reduced the exercise-induced rise of total macrophages, HLA+macrophages, and 11B+macrophages and abolished the exercise-induced upregulation of B lymphocytes. Natural killer cells declined only in PLA immediately after exercise. These results indicate that thiol-based antioxidant supplementation blunts immune cell mobilisation in response to exercise-induced inflammation suggesting that leukocyte mobilization may be under redox-dependent regulation.
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Deli, Chariklia K., Ioannis G. Fatouros, Vassilis Paschalis, Athanasios Tsiokanos, Kalliopi Georgakouli, Athanasios Zalavras, Alexandra Avloniti, Yiannis Koutedakis, and Athanasios Z. Jamurtas. "Iron Supplementation Effects on Redox Status following Aseptic Skeletal Muscle Trauma in Adults and Children." Oxidative Medicine and Cellular Longevity 2017 (2017): 1–13. http://dx.doi.org/10.1155/2017/4120421.

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Exercise-induced skeletal muscle microtrauma is characterized by loss of muscle cell integrity, marked aseptic inflammatory response, and oxidative stress. We examined if iron supplementation would alter redox status after eccentric exercise. In a randomized, double blind crossover study, that was conducted in two cycles, healthy adults (n=14) and children (n=11) received daily either 37 mg of elemental iron or placebo for 3 weeks prior to and up to 72 h after an acute eccentric exercise bout. Blood was drawn at baseline, before exercise, and 72 h after exercise for the assessment of iron status, creatine kinase activity (CK), and redox status. Iron supplementation at rest increased iron concentration and transferrin saturation (p<0.01). In adults, CK activity increased at 72 h after exercise, while no changes occurred in children. Iron supplementation increased TBARS at 72 h after exercise in both adults and children; no changes occurred under placebo condition. Eccentric exercise decreased bilirubin concentration at 72 h in all groups. Iron supplementation can alter redox responses after muscle-damaging exercise in both adults and children. This could be of great importance not only for healthy exercising individuals, but also in clinical conditions which are characterized by skeletal muscle injury and inflammation, yet iron supplementation is crucial for maintaining iron homeostasis. This study was registered at Clinicaltrials.gov Identifier:NCT02374619.
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Jatin Prajapat, Sheetal Kalra, Joginder Yadav, Sajjan Pal, and Sonia Pawaria. "Comparative Study Of Foam Rolling And Vibration Therapy On Blood Creatinine Level, Pain Sprint Speed, Lower Limb Power And Hip Range Of Motion In Delayed Onset Muscle Soreness." International Journal of Research in Pharmaceutical Sciences 11, SPL4 (December 21, 2020): 2287–97. http://dx.doi.org/10.26452/ijrps.v11ispl4.4456.

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Muscle soreness appears after high-intensity unaccustomed exercise, especially eccentric exercise and it peaks between 24 and 72 hours post-exercise. It can result in reduced muscle power, range of motion hence impacting athletic performance. Different treatment strategies are available to alleviate symptoms of Delayed Onset Muscle Soreness (DOMS). The present study was done to draw a comparison between the effects of foam rolling and vibration therapy on pain, hip range of motion, sprint speed and lower limb power in subjects with exercise-induced muscle damage. It was a comparative Experimental Study design. The sample consisted of 30 Male students who were randomly allocated to 2 groups, i.e. Group A (Foam Rolling) and Group B (Vibration Therapy) with 15 participants in each group. Participants performed ten sets of 10 repetitions of back squats at 60% of their 1-repetition maximum, followed by either foam rolling or vibration therapy 24 and 48 hours post-DOMS protocol. Blood Creatinine level was measured before inducing DOMS(day 1) and after 24 hrs(day2) and 48 hrs(day 3) of recovery. Increase in serum levels of CK is used as an indirect marker of the microtrauma associated with DOMS. Pain, lower limb power, sprint speed and Hip range of motion were measured using Numeric Pain Rating Scale, Vertical Jump test, Sprint speed 30-meter test and goniometer respectively after 24 and 48 hours of recovery. Results showed both groups showed improvement on Day 2 and 3. However, Vibration therapy showed statistically better improvement compared to Foam Rolling group.
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Dissertations / Theses on the topic "Muscle microtrauma"

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Sands, William A., Jeni R. McNeal, Steven R. Murray, and Michael H. Stone. "Dynamic Compression Enhances Pressure-to-Pain Threshold in Elite Athlete Recovery: Exploratory Study." Digital Commons @ East Tennessee State University, 2015. https://dc.etsu.edu/etsu-works/4626.

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Dynamic compression enhances pressure-to-pain threshold in elite athlete recovery: exploratory study. J Strength Cond Res 29(5): 1263–1272, 2015—Athlete recovery-adaptation is crucial to the progress and performance of highly trained athletes. The purpose of this study was to assess peristaltic pulse dynamic compression (PPDC) in reducing short-term pressure-to-pain threshold (PPT) among Olympic Training Center athletes after morning training. Muscular tenderness and stiffness are common symptoms of fatigue and exercise-induced muscle microtrauma and edema. Twenty-four highly trained athletes (men = 12 and women = 12) volunteered to participate in this study. The athletes were randomly assigned to experimental (n = 12) and control (n = 12) groups. Pressure-to-pain threshold measurements were conducted with a manual algometer on 3 lower extremity muscles. Experimental group athletes underwent PPDC on both legs through computer-controlled circumferential inflated leggings that used a peristaltic-like pressure pattern from feet to groin. Pressures in each cell were set to factory defaults. Treatment time was 15 minutes. The control group performed the same procedures except that the inflation pump to the leggings was off. The experimental timeline included a morning training session, followed by a PPT pretest, treatment application (PPDC or control), an immediate post-test (PPT), and a delayed post-test (PPT) after the afternoon practice session. Difference score results showed that the experimental group's PPT threshold improved after PPDC treatment immediately and persisted the remainder of the day after afternoon practice. The control group showed no statistical change. We conclude that PPDC is a promising means of accelerating and enhancing recovery after the normal aggressive training that occurs in Olympic and aspiring Olympic athletes.
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Book chapters on the topic "Muscle microtrauma"

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Weiss, Elizabeth. "Entheseal Changes." In Reading the Bones. University Press of Florida, 2017. http://dx.doi.org/10.5744/florida/9780813054988.003.0003.

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This chapter focuses on locations called entheses where muscles attach to bones and whether muscle use can create changes at these locations. Entheseal changes, which have also been called musculoskeletal stress markers, have been utilized to reconstruct activity patterns in a wide range of studies. Some entheseal change researchers suggest that the muscle use causes microtrauma at the entheses; others suggest that bone remodeling (rather than repair) sufficiently explains the localized changes found at entheses. Yet entheseal changes also correlate with non-activity variables; age is the best predictor of entheseal changes. It seems that fibrocartilaginous entheses, which attach muscle to bone via a fibrous tendon, are less prone to non-activity confounds than the more often examined fibrous entheses, which involve large muscles that attach directly onto bone.
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