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Open AccessArticle

Effects of Whey and Pea Protein Supplementation on Post-Eccentric Exercise Muscle Damage: A Randomized Trial

1
Human Performance Laboratory, Department of Biology, Appalachian State University, North Carolina Research Campus, Kannapolis, NC 28608, USA
2
Department of Health and Exercise Science, Appalachian State University, Boone, NC 28608, USA
3
China Academy of Sport and Health Sciences, Beijing Sport University, Beijing 100084, China
4
Nutrition and Health Research & Development, Roquette, Geneva, IL 60134, USA
5
Nutrition and Health Research & Development, Roquette, 62136 Lestrem, France
*
Author to whom correspondence should be addressed.
Nutrients 2020, 12(8), 2382; https://doi.org/10.3390/nu12082382
Received: 14 July 2020 / Revised: 31 July 2020 / Accepted: 7 August 2020 / Published: 9 August 2020
(This article belongs to the Special Issue Nutrition and Muscle Recovery)
This randomized trial compared pea protein, whey protein, and water-only supplementation on muscle damage, inflammation, delayed onset of muscle soreness (DOMS), and physical fitness test performance during a 5-day period after a 90-min eccentric exercise bout in non-athletic non-obese males (n = 92, ages 18–55 years). The two protein sources (0.9 g protein/kg divided into three doses/day) were administered under double blind procedures. The eccentric exercise protocol induced significant muscle damage and soreness, and reduced bench press and 30-s Wingate performance. Whey protein supplementation significantly attenuated post-exercise blood levels for biomarkers of muscle damage compared to water-only, with large effect sizes for creatine kinase and myoglobin during the fourth and fifth days of recovery (Cohen’s d > 0.80); pea protein versus water supplementation had an intermediate non-significant effect (Cohen’s d < 0.50); and no significant differences between whey and pea protein were found. Whey and pea protein compared to water supplementation had no significant effects on post-exercise DOMS and the fitness tests. In conclusion, high intake of whey protein for 5 days after intensive eccentric exercise mitigated the efflux of muscle damage biomarkers, with the intake of pea protein having an intermediate effect. View Full-Text
Keywords: protein; exercise; muscle damage; creatine kinase; myoglobin; inflammation protein; exercise; muscle damage; creatine kinase; myoglobin; inflammation
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MDPI and ACS Style

Nieman, D.C.; Zwetsloot, K.A.; Simonson, A.J.; Hoyle, A.T.; Wang, X.; Nelson, H.K.; Lefranc-Millot, C.; Guérin-Deremaux, L. Effects of Whey and Pea Protein Supplementation on Post-Eccentric Exercise Muscle Damage: A Randomized Trial. Nutrients 2020, 12, 2382.

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