描述部分耗尽后W'恢复的指数形状
Maarten Lievens, Michael Ghijs1, Jan G Bourgois
1Department of Movement and Sports Sciences, Ghent University, Ghent, BELGIUM.
Medicine and science in sports and exercise
|May 20, 2024
概括
这项研究发现,单指数模型比单指数模型更好地描述运动生理学的W'恢复动力学. W'恢复与有氧健身有关,强调个性化建模.
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:
- W' (曲率常数) 表示在临界功率以上可用的能量.
- 了解W'的恢复动力学对于预测耐力运动能力至关重要.
- 之前的模型已经探索了各种数学方法来描述W'恢复.
研究的目的:
- 描述部分W'耗尽后W'恢复的动力学.
- 为了比较比特指数与单指数模型在描述W'恢复中的有效性.
- 调查W'恢复和有氧健身参数之间的关系.
主要方法:
- 九名健康的男性接受了增量和持续负载运动测试,以确定临界功率和W'.
- 十项实验试验涉及两次工作,恢复间隔不同 (30-600秒),以诱导25%或75%的W'耗尽.
- 观察到的W'回收数据使用单指数和双指数模型进行了拟合,并通过RMSE和AICc评估了适合性.
主要成果:
- 当模型振幅自由时,单指数模型表现出比二次指数模型更好的匹配.
- 当模型振幅固定时,单指数模型在25%的耗尽中受到青,但不是75%.
- W'的回收与耗尽水平之间有很强的相关性,并且与V̇O2峰值,临界功率和气体交换值有积极的关联.
结论:
- 证据不支持使用比特指数模型来描述部分W'枯竭恢复.
- 固定的时间常数对于在不同耗尽水平上建模W'恢复是不够的.
- W'恢复与有氧健身有积极的关联,突出了预测模型中需要可变的,个性化的时间常量.
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