Affiliation:
1. Faculty of Health Sciences and Sport University of Stirling Stirling UK
2. Centre of Human & Applied Physiological Research King's College London London UK
3. Department of Musculoskeletal Biology Institute of Life Course and Medical Sciences University of Liverpool Liverpool UK
4. Department of Clinical Neurosciences Division of Physical Medicine and Rehabilitation University of Calgary Calgary Canada
Abstract
ABSTRACTWe aimed to investigate the influence of 4‐wk of fish oil (FO) supplementation on markers of muscle damage, inflammation, muscle soreness, and muscle function during acute recovery from eccentric exercise in moderately trained males. Sixteen moderately‐trained males ingested 5 g/d of FO (n = 8) or soybean oil (placebo) capsules (n = 8) for 4‐wk prior to‐ and 3‐d following an acute eccentric exercise bout. Eccentric exercise consisted of 12 sets of isokinetic knee extension and knee flexion. Indices of muscle damage, soreness, function and inflammation were measured at baseline and during exercise recovery. Eccentric exercise elicited an increase in muscle soreness (p < 0.010) and thigh volume (p < 0.001), and reduced peak isometric torque by 31.7 ± 6.9%, (p < 0.05, 95% CI 10.6–52.8) during 3‐d of recovery. Blood omega‐3 polyunsaturated fatty acid concentration was 14.9 ± 2.4% higher in FO than PLA (p < 0.01, 95% CI 9.8–20.1). However, FO did not ameliorate the cumulative creatine kinase response (expressed as AUC; p = 0.368), inflammation (p = 0.400), muscle soreness (p > 0.140), or muscle function (p > 0.249) following eccentric exercise. FO supplementation confers no clear benefit in terms of ameliorating the degree of muscle damage, or facilitating the muscle repair process, during acute eccentric exercise recovery. These data suggest that FO supplementation does not provide an effective nutritional strategy to promote exercise recovery, at least in moderately‐trained young men.Abbreviations: ANOVA: Analysis of variance; AUC: Area under curve; CI: Confidence interval; CK: Creatine kinase; CMJ: Countermovement jump; COX: Cyclooxygenase; CRP: C‐reactive protein; DHA: Docosahexaenoic acid; DOMS: Delayed‐onset muscle soreness; EIMD: Exercise‐induced muscle damage; En%: Energy percent; EPA: Eicosapentaenoic acid; FO: Fish oil; IL‐6: Interleukin‐6; LDH: Lactate dehydrogenase; LOX: Lipoxygenase; Mb: Myoglobin; mTOR: Mechanistic target of rapamycin; PLA: Placebo; ROM: Range of motion; ROS: Reactive oxygen species; SD: Standard deviation; SEM: Standard error of the mean; TNF‐α: Tumour necrosis factor alpha; VAS: Visual analogue scale; Ω3‐PUFA: Omega‐3 polyunsaturated fatty acids; Ω6‐PUFA: Omega‐6 polyunsaturated fatty acids
Subject
Orthopedics and Sports Medicine,Physical Therapy, Sports Therapy and Rehabilitation,General Medicine
Cited by
2 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献