One Week of L-Citrulline Supplementation Improves Performance in Trained Cyclists.

摘要: Stanelle, ST, McLaughlin, KL, and Crouse, SF. One week of L-citrulline supplementation improves performance in trained cyclists. J Strength Cond Res 34(3): 647-652, 2020-L-citrulline (CIT) is a nonessential amino acid that touted as an ergogenic aid for athletic because its purported ability to stimulate nitric oxide production. Although previous research has demonstrated CIT over period days physiological factors such V[Combining Dot Above]O2 kinetics, no studies date have explored whether there direct benefit endurance performance. This study used randomized, double-blind, crossover design test chronic with pure cycling maltodextrin placebo (PLAC). Nine male cyclists (24 ± 3 years; 181 7 cm; 76 13 kg; 4.18 0.51 L·min Above]O2max) completed two 7-day periods (6 g·d or PLAC) separated by washout. Subjects consumed the final 6-g dose 2 hours before evaluation, which consisted 40-km time trial (TT) followed supramaximal sprint repeat task (SRT). Paired t-tests repeated-measures analysis variance (α = 0.05) were analyze TT SRT data, respectively. produced improvement 5.2% trended toward significance (p 0.08). Furthermore, promoted significant increase average heart rate, rating perceived exertion, power throughout < 0.05). However, did not prevent fatigue during SRT. Overall, this first demonstrate may provide modest athletes.