在单个详尽的膝盖延伸器运动中无氧贡献的可靠性
Gabriel Luches-Pereira1, Carlos Augusto Kalva-Filho2, Danilo Rodrigues Bertucci3
1School of Physical Education and Sport of Ribeirão Preto, University of Sao Paulo, Ribeirão Preto, Brazil.
International journal of sports medicine
|November 8, 2023
概括
总无氧贡献 (AC[La-]+PCr) 在单腿膝盖延伸过程中可靠在100%的峰值功率输出. 然而,在未来的研究中,请考虑其高个体变异性.
科学领域:
- 运动生理学 运动生理学
- 运动科学 运动科学 运动科学
- 人类表现的人类表现.
背景情况:
- 总无氧贡献 (AC[La-]+PCr) 是运动生理学的一个关键指标.
- 活跃的肌肉质量会影响AC[La-]+PCr]的可靠性.
- 研究运动强度对AC[La-]+PCr可靠性的影响至关重要.
研究的目的:
- 检查两个不同的详尽的运动强度对AC[La-]+PCr的可靠性的影响.
- 为了评估 AC[La-]+PCr 在单腿膝延伸 (1L-KE) 运动中的可靠性.
- 为了比较AC[La-]+PCr值在100%到110%的峰值功率输出 (PPO) 之间.
主要方法:
- 13名身体活跃的男性进行了分级运动,以确定1L-KE PPO.
- 参与者完成了两个常量负载练习,以100% (TTF100) 和110% (TTF110) 的PPO完成任务失败,并以可靠性重复.
- 测量了血液中的乳酸盐和运动后的氧气摄入量,以估计无氧贡献.
主要成果:
- 在TTF100之后,与TTF110 (p=0.042) 相比,观察到更高的AC[La-]+PCr值.
- AC[La-]+PCr在TTF100时,在低系统误差 (80.9毫升) 和显著的ICC (0.71) 的试验 (p=0.432) 之间没有显著差异.
- 对于AC[La-]+PCr在TTF100时,观察到一个升高的变化系数 (13.7%).
结论:
- 建议在100%的PPO使用1L-KE模型进行详尽的努力,以获得可靠的AC[La-]+PCr评估.
- 在随后的研究中,必须仔细考虑AC[La-]+PCr的高个体变异性.
- 这种方法为局部运动期间的无氧能量系统贡献提供了有价值的见解.
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