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The effect of Omega-3 polyunsaturated fatty acid supplementation on exercise-induced muscle damage

Kyriakidou, Yvoni and Wood, Carly and Ferrier, Chrystalla and Dolci, Alberto and Elliot, Bradley (2021) 'The effect of Omega-3 polyunsaturated fatty acid supplementation on exercise-induced muscle damage.' Journal of the International Society of Sports Nutrition, 18. ISSN 1550-2783

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Abstract

Background Exercise-induced muscle damage (EIMD) results in transient muscle inflammation, strength loss, muscle soreness and may cause subsequent exercise avoidance. Omega-3 (n-3) supplementation may minimise EIMD via its anti-inflammatory properties, however, its efficacy remains unclear. Methods Healthy males (n = 14, 25.07 ± 4.05 years) were randomised to 3 g/day n-3 supplementation (N-3, n = 7) or placebo (PLA, n = 7). Following 4 weeks supplementation, a downhill running protocol (60 min, 65% V̇O2max, − 10% gradient) was performed. Creatine kinase (CK), interleukin (IL)-6 and tumour necrosis factor (TNF)-α, perceived muscle soreness, maximal voluntary isometric contraction (MVIC) and peak power were quantified pre, post, and 24, 48 and 72 h post-EIMD. Results Muscle soreness was significantly lower in N-3 vs PLA group at 24 h post-EIMD (p = 0.034). IL-6 was increased in PLA (p = 0.009) but not in N-3 (p = 0.434) following EIMD, however, no significant differences were noted between groups. Peak power was significantly suppressed in PLA relative to pre-EIMD but not in N-3 group at 24 h post-EIMD. However, no significant difference in peak power output was observed between groups. MVIC, CK and TNF-α were altered by EIMD but did not differ between groups. Conclusion N-3 supplementation for 4 weeks may successfully attenuate minor aspects of EIMD. Whilst not improving performance, these findings may have relevance to soreness-associated exercise avoidance.

Item Type: Article
Uncontrolled Keywords: Omega-3, Supplementation, Ergogenic aid, Eccentric exercise, Muscle damage, EIMD, DOMS, Recovery, Inflammation, Performance
Divisions: Faculty of Science and Health > Sport, Rehabilitation and Exercise Sciences, School of
Depositing User: Elements
Date Deposited: 09 Feb 2021 13:59
Last Modified: 09 Feb 2021 13:59
URI: http://repository.essex.ac.uk/id/eprint/29739

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