J Strength Cond Res. 2002 Feb;16(1):157-60.

The effects of high-dose glutamine ingestion on weightlifting performance.

Antonio J, Sanders MS, Kalman D, Woodgate D, Street C.

Source

Sports Science Laboratory, University of Delaware, Newark, Delaware 19716, USA.

Abstract

The purpose of this study was to determine if high-dose glutamine ingestion affected weightlifting performance. In a double-blind, placebo-controlled, crossover study, 6 resistance-trained men (mean +/- SE: age, 21.5 +/- 0.3 years; weight, 76.5 +/- 2.8 kg(-1)) performed weightlifting exercises after the ingestion of glutamine or glycine (0.3 g x kg(-1)) mixed with calorie-free fruit juice or placebo (calorie-free fruit juice only). Each subject underwent each of the 3 treatments in a randomized order. One hour after ingestion, subjects performed 4 total sets of exercise to momentary muscular failure (2 sets of leg presses at 200% of body weight, 2 sets of bench presses at 100% of body weight). There were no differences in the average number of maximal repetitions performed in the leg press or bench press exercises among the 3 groups. These data indicate that the short-term ingestion of glutamine does not enhance weightlifting performance in resistance-trained men.

PMID:: 11834123; [PubMed - indexed for MEDLINE]

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Exercise and Physical Fitness - MedlinePlus Health Information

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