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Open AccessArticle

Protein Supplementation During or Following a Marathon Run Influences Post-Exercise Recovery

Department of Kinesiology, James Madison University, Harrisonburg, VA 22807, USA
Author to whom correspondence should be addressed.
Nutrients 2018, 10(3), 333;
Received: 12 January 2018 / Revised: 27 February 2018 / Accepted: 8 March 2018 / Published: 10 March 2018
(This article belongs to the Special Issue Protein for Post-Exercise Recovery and Performance)
The effects of protein supplementation on the ratings of energy/fatigue, muscle soreness [ascending (A) and descending (D) stairs], and serum creatine kinase levels following a marathon run were examined. Variables were compared between recreational male and female runners ingesting carbohydrate + protein (CP) during the run (CPDuring, n = 8) versus those that were consuming carbohydrate (CHODuring, n = 8). In a second study, outcomes were compared between subjects who consumed CP or CHO immediately following exercise [CPPost (n = 4) versus CHOPost (n = 4)]. Magnitude-based inferences revealed no meaningful differences between treatments 24 h post-marathon. At 72 h, recovery [Δ(72 hr-Pre)] was likely improved with CPDuring versus CHODuring, respectively, for Physical Energy (+14 ± 64 vs −74 ± 70 mm), Mental Fatigue (−52 ± 59 vs +1 ± 11 mm), and Soreness-D (+15 ± 9 vs +21 ± 70 mm). In addition, recovery at 72 h was likely-very likely improved with CPPost versus CHOPost for Physical Fatigue, Mental Energy, and Soreness-A. Thus, protein supplementation did not meaningfully alter recovery during the initial 24 h following a marathon. However, ratings of energy/fatigue and muscle soreness were improved over 72 h when CP was consumed during exercise, or immediately following the marathon. View Full-Text
Keywords: carbohydrate; protein; post-exercise recovery; sports nutrition carbohydrate; protein; post-exercise recovery; sports nutrition
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Saunders, M.J.; Luden, N.D.; DeWitt, C.R.; Gross, M.C.; Dillon Rios, A. Protein Supplementation During or Following a Marathon Run Influences Post-Exercise Recovery. Nutrients 2018, 10, 333.

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