Whey protein hydrolysate supplementation accelerates recovery from exercise-induced muscle damage in females

Brown, Meghan A and Stevenson, Emma J and Howatson, Glyn (2017) Whey protein hydrolysate supplementation accelerates recovery from exercise-induced muscle damage in females. Applied Physiology, Nutrition, and Metabolism. ISSN 1715-5312 (In Press)

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Abstract

A number of different forms of protein and their analogues have been investigated for their efficacy in ameliorating exercise-induced muscle damage (EIMD) and recovery. Preliminary data regarding whey protein hydrolysate (WPH) supplementation are promising. However, its efficacy beyond acute eccentric/resistance exercise bouts or longer-term training programmes are limited and all investigations have been conducted in male or mixed-sex groups. This study sought to elucidate whether the benefits of WPH previously reported can be demonstrated in females following repeated-sprint exercise. Twenty physically active females were assigned to consume two doses of 70 ml WPH or isoenergetic carbohydrate (CHO) for 4 days post EIMD. Measures of muscle soreness, limb girth, flexibility, muscle function and creatine kinase were collected pre, immediately post, and 24, 48 and 72 h post-exercise. Time effects were observed for all variables (p < 0.05) except limb girth; indicative of EIMD. Flexibility improved beyond baseline measures following WPH by 72 h, but had failed to recover in the CHO group (p = 0.011). Reactive strength index was higher throughout recovery in the WPH group compared to CHO (p = 0.016). Reductions in creatine kinase were greater following WPH compared to CHO at 48 h post EIMD (p = 0.031). The findings suggest that four day supplementation of WPH is beneficial for reducing symptoms of EIMD and improving recovery of muscle function in physically active females.

Item Type: Article
Article Type: Article
Uncontrolled Keywords: creatine kinase, reactive strength index, hamstring flexibility, repeated sprint
Subjects: R Medicine > RC Internal medicine > RC1200 Sports Medicine
Divisions: Schools and Research Institutes > School of Sport & Exercise > Sport and Exercise
Research Priority Areas: Sport, Exercise, Health & Wellbeing
Depositing User: Anne Pengelly
Date Deposited: 23 Oct 2017 11:02
Last Modified: 11 Nov 2017 12:16
URI: http://eprints.glos.ac.uk/id/eprint/5002

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