Márcio Getirana-Mota, Felipe J Aidar, Raphael Fabricio de Souza, Ciro José Brito, Taísa Pereira Santos, Jonason Espínola Lacerda, Lúcio Marques Vieira-Souza, Georgian Badicu
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引用次数: 0
摘要
l -色氨酸补充剂在耐力运动中的研究有争议的结果，其对最大力量运动的影响在很大程度上仍未被探索。本研究调查了补充l -色氨酸是否能改善残奥会举重运动员的动态力量指标。方法：对13名残奥会举重运动员进行随机、双盲、交叉临床试验。运动员在训练前72小时补充l -色氨酸或安慰剂。使用编码器评估强度，测量不同时间点（前、后、24和48小时）和负载（1 RM的45%和80%）的平均推进速度（MPV）、最大速度（vmax）和功率（PO）。结果：与安慰剂相比，补充l -色氨酸导致运动前时间点的MPV、vmax和PO值更高。然而，在运动后，这种差异减弱，补充的好处在48小时后不能持续。结论：补充l -色氨酸可能通过影响神经肌肉放松来暂时改善残奥会举重运动员运动前的力量表现。
The Effect of L-Tryptophan Intake on Dynamic Strength in Paralympic Powerlifting.
Introduction: L-tryptophan supplementation has been studied in endurance sports with controversial results, and its influence on maximal strength sports remains largely unexplored. This study investigated whether L-tryptophan supplementation improves dynamic strength indicators in Paralympic powerlifting athletes.
Methodology: A randomized, double-blind, crossover clinical trial was conducted with 13 paralympic powerlifting athletes. The athletes were supplemented with L-tryptophan or placebo for 72 hours before training. Strength was assessed using an encoder, measuring mean propulsive velocity (MPV), maximal velocity (Vmax), and power (PO) at different time points (pre, post, 24, and 48 hours) and loads (45% and 80% of 1 RM).
Results: L-tryptophan supplementation resulted in higher MPV, Vmax, and PO values at the pre-exercise time point compared to placebo. However, after exercise, this difference diminished, and the benefits of supplementation were not sustained after 48 hours.
Conclusion: L-tryptophan supplementation appears to temporarily improve pre-exercise strength performance in Paralympic powerlifting athletes, possibly by influencing neuromuscular relaxation.
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