与安慰剂相比,在碳水化合物方面有差异的单能运动前食同样影响阻力训练体积表现:一个交叉试验
Andrew King1, Ivan Jukic1,2, Colby A Sousa1
1Sport Performance Research Institute New Zealand (SPRINZ), Auckland University of Technology, Auckland, New Zealand.
European journal of sport science
|March 3, 2025
概括
运动前的碳水化合物摄入量不会提高抵抗训练的体积性能. 无论是高碳水化合物还是低碳水化合物食,都没有改善与安慰剂相比完成的重复,尽管影响了食欲和血糖.
科学领域:
- 运动生理学 运动生理学
- 运动营养 运动营养
- 人类表现的人类表现.
背景情况:
- 碳水化合物是高强度运动期间的主要能量来源.
- 运动前摄入碳水化合物对抵抗训练 (RT) 体积表现的影响仍然是研究领域.
研究的目的:
- 为了研究运动前摄入碳水化合物的对RT体积表现的影响.
- 分析主观食欲评级和血糖和乳酸水平的变化.
主要方法:
- 一个随机的交叉设计,涉及16名抵抗训练参与者.
- 参与者在进行RT前2小时消耗了高碳水化合物 (HCHO),低碳水化合物 (LCHO) 或安慰剂 (PLA) 液体食.
- 测量了体积表现,食欲,血糖和乳酸.
主要成果:
- 在HCHO,LCHO和PLA条件之间没有观察到每次或每次练习完成的重复的显著差异.
- 虽然HCHO和LCHO与PLA相比增加了和腹感,但它们没有增加RT体积.
- 血糖在HCHO摄入后增加,但在运动期间和运动后的各种条件下,血液中的乳酸盐水平相似.
结论:
- 运动前餐的宏观营养素或能量含量似乎没有提高上肢主导的抵抗训练体积性能.
- 运动前摄入的碳水化合物可能会影响食欲和血糖,但在这种情况下不会影响RT体积.
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