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THE JOURNAL OF SPORTS MEDICINE AND PHYSICAL FITNESS

A Journal on Applied Physiology, Biomechanics, Preventive Medicine,
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The Journal of Sports Medicine and Physical Fitness 2016 June;56(6):765-74

Copyright © 2016 EDIZIONI MINERVA MEDICA

language: English

Physical performance and markers of muscle damage following sport-specific sprints in male collegiate soccer players: repeated bout effect

Shalini VERMA 1, Jamal A. MOIZ 1, Mohammed Y. SHAREEF 2, Mohammed E. HUSAIN 1

1 Center for Physiotherapy and Rehabilitation Sciences, Jamia Millia Islamia (Central University) New Delhi, India; 2 Chief Medical Officer, Dr. M A Ansari Health Centre, Jamia Millia Islamia, New Delhi, India


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BACKGROUND: This is the first study to examine the repeated bout effect (RBE) on physical performance parameters in an athletic population. Protocols used by previous studies to induce muscle injury and assess performance following injury, are dissimilar from those utilized by physically trained individuals or are impractical in relation to athletic performance. The present study uses a sport specific protocol to study the effects of exercise induced muscle damage (EIMD) on physical performance to provide a more systematic analysis of the extent of muscle injury.
METHODS: Thirty two male collegiate soccer players were randomly assigned into either a repeated bout group (N.=16) or control group (N.=16). The repeated bout group performed 2 bouts of sport-specific sprints separated by 14 days. The control group performed a single bout of the same sprint protocol. Maximum voluntary isometric contraction for quadriceps (MVCQ) and hamstrings (MVCH), knee range of motion (ROM), thigh circumference, muscle soreness, plasma creatine kinase (CK) and lactate dehydrogenase (LDH), in addition to physical performance parameters-speed, agility and power were measured before, 24, 48 and 72 hours following the sprinting bouts.
RESULTS: MVCQ, MVCH, ROM, thigh circumference, CK, LDH and agility showed significant group x time interaction (P<0.05), suggesting lesser decrements and better recovery profile for the repeated bout group. Muscle soreness showed a main effect for group (P<0.001).
CONCLUSIONS: The physical performance parameters (speed, agility and power) are less affected by EIMD as compared to other markers and therefore did not demonstrate RBE.

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Cite this article as

Verma S, Moiz JA, Shareef MY, Husain ME. Physical performance and markers of muscle damage following sport-specific sprints in male collegiate soccer players: repeated bout effect. J Sports Med Phys Fitness 2016 June;56(6):765-74. 

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jamoizpt@gmail.com