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Kinesiology

Performance

Senior Honors Projects, 2010-current

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Macronutrient Supplementation For Endurance Athletes, Jonathan B. Hurst May 2016

Macronutrient Supplementation For Endurance Athletes, Jonathan B. Hurst

Senior Honors Projects, 2010-current

Purpose: The present study addressed two questions related to macronutrient supplementation during endurance exercise. Firstly, the effects of carbohydrate and protein co-ingestion on time trial (TT) performance were compared to carbohydrate alone. Secondly, the effects of isolated protein ingestion on TT performance were compared to a placebo.

Methods: Six trained cyclists (Age: 22 ± 1 years; Height: 167 ± 12 cm; Weight: 60 ± 10 kg; VO2max: 62 ± 7 ml/kg/min) completed four experimental trials, consisting of constant-load cycling for two hours (55% Wmax) immediately followed by a 30-km simulated time trial. During the trials, subjects consumed one of four ...