多成分运动前膳食补充剂对未经训练男性无氧运动能力的急性影响：一项随机、交叉、单盲研究。

Acute effects of multi-ingredient pre-workout dietary supplement on anaerobic performance in untrained men: a randomized, crossover, single blind study.

作者信息

Drwal Aleksander, Pałka Tomasz, Tota Lukasz, Wiecha Szczepan, Čech Pavol, Strzała Marek, Maciejczyk Marcin

机构信息

Department of Physiology and Biochemistry, University of Physical Education, Kraków, Poland.

Department of Physical Education and Health, Faculty in Biala Podlaska, Józef Piłsudski University of Physical Education, Warsaw, Poland.

出版信息

BMC Sports Sci Med Rehabil. 2024 Jun 9;16(1):128. doi: 10.1186/s13102-024-00918-1.

DOI:10.1186/s13102-024-00918-1

PMID:38853269

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11163698/

Abstract

BACKGROUND

Multi-ingredient pre-workout dietary supplements (MIPS), which are combinations of different ingredients acting on different physiological mechanisms, can have a synergistic effect and improve performance. The aim of the study was to determine the acute effects of a multi-ingredient pre-workout supplement containing: beta-alanine, taurine, caffeine, L-tyrosine, and cayenne pepper (capsaicin) on anaerobic performance.

METHODS

A randomized, crossover, single-blind study was designed. Twelve young, healthy, untrained men aged 22.4 ± 1.44 years participated in the study. The participants performed a supramaximal all-out test (20 s Wingate test) twice, day by day, in random order: test after placebo or MIPS consumption. In both trials, the following variables were measured in the exercise test: total work performed, peak power, mean power, time to reach peak power, and power decrease.

RESULTS

MIPS was found to be effective in improving peak power (p = 0.009, ES = 0.77) and mean power (p = 0.04, ES = 0.62) in the Wingate test. However, the supplement consumption did not affect the amount of total work done (p = 0.10, ES = 0.48) in the test or power decrease (p = 0.07, ES = 0.53). The data indicate, that the improvement in anaerobic power was due to a significant improvement in pedaling speed, which was manifested in a significant improvement (i.e. shortening) in time to peak power (p = 0.003, ES = 0.88).

CONCLUSION

A multi-ingredient pre-workout dietary supplement was found to be effective in improving Wingate (anaerobic) performance.

TRIAL REGISTRATION

NCT06363669, retrospectively registered on 11.04.2024 (ClinicalTrials.gov).

摘要

背景

多成分运动前膳食补充剂（MIPS）是不同成分的组合，作用于不同的生理机制，可产生协同效应并提高运动表现。本研究的目的是确定一种含有β-丙氨酸、牛磺酸、咖啡因、L-酪氨酸和辣椒（辣椒素）的多成分运动前补充剂对无氧运动表现的急性影响。

方法

设计了一项随机、交叉、单盲研究。12名年龄在22.4±1.44岁的年轻、健康、未经训练的男性参与了该研究。参与者每天以随机顺序进行两次超最大强度全力测试（20秒温盖特测试）：服用安慰剂或MIPS后进行测试。在两项试验中，在运动测试中测量以下变量：完成的总功、峰值功率、平均功率、达到峰值功率的时间和功率下降。

结果

发现在温盖特测试中，MIPS能有效提高峰值功率（p = 0.009，效应量ES = 0.77）和平均功率（p = 0.04，效应量ES = 0.62）。然而，补充剂的摄入并未影响测试中完成的总功量（p = 0.10，效应量ES = 0.48）或功率下降（p = 0.07，效应量ES = 0.53）。数据表明，无氧功率的提高是由于蹬踏速度的显著提高，这表现为达到峰值功率的时间显著缩短（p = 0.003，效应量ES = 0.88）。