通过使用健康男性的效率因子来预测最大氧气吸收的可行性
Fang Li1,2, Yu-Tsai Tu3,4, Hung-Chih Yeh3
1School of Physical Education, Central China Normal University, Wuhan, People's Republic of China.
Scientific reports
|October 5, 2023
概括
一个新的效率因子 (EF) 提供了一种更简单的方法来估计最大氧气吸收 (VO2max). 结合EF6的PBF模型EF6在预测VO2max方面被证明是最准确的,简化了运动强度评估.
科学领域:
- 运动生理学 运动生理学
- 心脏呼吸系统健康评估评估
- 生物统计学 生物统计学
背景情况:
- 传统的运动效率估计依赖于复杂而昂贵的呼吸气体分析.
- 为了实际应用,需要一种更简单,更易于使用的评估运动效率的方法.
- 最大氧吸收量 (VO2max) 是心肺呼吸能力的一个关键指标.
研究的目的:
- 引入和验证一种新的"效率因子" (EF) 作为运动效率的简化衡量标准.
- 评估拟议EF与最大氧气摄入量 (VO2max) 之间的关系.
- 为了比较基于EF的VO2max的各种模型的预测准确性.
主要方法:
- 开发了效率因子 (EF) 作为工作与运动强度的比率.
- 对150名健康男性进行心肺运动测试 (CPET),以测量生理参数.
- 利用多重线性回归来建立预测模型,包括BMI,身体脂肪百分比 (PBF) 和EF在不同炼阶段 (EF6,EF7).
主要成果:
- 运动第6阶段 (EF6) 和第7阶段 (EF7) 的效率因子与VO2max显著相关 (r=0.32,p=0.001和r=0.31,p=0.002).
- 结合EF6的PBF模型EF6显示了对VO2max的最高预测精度.
- PBF模型EF6解释了VO2max62.6%的变异,估计的标准误差 (SEE) 为11.25%.
结论:
- 新提出的效率因子 (EF) 是最大氧气吸收 (VO2max) 的重要预测因子.
- 与其他模型相比,PBF模型EF6为估计VO2max提供了更准确和更实用的方法.
- 这种简化方法可以提高心肺健康评估的可访问性和适用性.
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