在恒定工作速率练习期间V·O 2 / PO关系的线性建模
Lena Stuer, Jan Boone1, Patrick Mucci2
1Department of Movement and Sports Sciences, Ghent University, Ghent, BELGIUM.
这项研究证实,在重强度领域的恒定工作速率运动中,氧气消耗与功率输出关系是线性的. 这验证了使用线性模型将坡道运动输出功率转换为恒定工作速率等效的有效性.
科学领域:
- 运动生理学 运动生理学
- 心肺运动测试 心肺运动测试
背景情况:
- 坡道增量 (RI) 练习引起的VO2 / PO关系不同于恒定工作速率 (CWR) 练习.
- 当前的方法将RI输出功率 (PO) 转换为CWR PO,假设在重强度域中具有线性V·O 2 / PO关系.
研究的目的:
- 为了建模RI与CWR V·O 2 / PO关系.
- 要确定气体交换值 (GET) 以上机械效率的损失是否是线性的.
- 评估PO转换策略中使用的道衍生参数的可靠性.
主要方法:
- 14名健康参与者完成了RI和CWR测试.
- 使用线性函数,多项式函数和指数函数建模了CWR V̇O 2 / PO关系.
- 使用RMSE和AIC C评估的适合性;通过重复测量评估的可靠性.
主要成果:
- 一个线性模型最好地描述了重强度域 (R2 = 0.94) 中的CWR V̇O 2 / PO关系.
- 对于基线V·O2的可靠性很好,对于坡道参数 (s1-坡道,s2-坡道) 的可接受性很好.
- 平均响应时间 (MRT) 显示出很高的变化.
结论:
- 在高强度CWR运动中的V·O2/PO关系是线性的.
- 这种线性验证了使用线性V·O 2 / PO关系将RI PO转换为CWR等效的校正策略.
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