步行时全身氧气消耗量:测量和估计值之间的一致性
Antonio Clavero-Jimeno1, Andres Marmol-Perez1,2, Manuel Dote-Montero1,3
1Department of Physical Education and Sports, Faculty of Sport Sciences, Sport and Health University Research Institute (iMUDS), University of Granada, Granada, Spain.
European journal of sport science
|September 20, 2024
概括
在行走过程中估计氧气消耗 (VO2) 的预测方程与测量值不太一致. 韦扬方程表现出最少的偏差,使其成为估计VO2的首选选择.
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
- 生物医学工程 生物医学工程
背景情况:
- 氧气消耗 (VO2) 的预测方程对于能源消耗计算和运动处方至关重要.
- 在步行时准确的VO2估计对于定制身体活动和训练方案至关重要.
- 之前的研究强调了不同VO2预测模型的准确度的变化.
研究的目的:
- 为了评估测量VO2和VO2估计之间的协议,通过七个预测方程在跑步机上行走.
- 为了比较不同步行速度 (3.5-6.5公里/小时) 的不同VO2预测方程的准确性.
- 根据测量数据,确定最可靠的预测方程来估计行走期间的VO2.
主要方法:
- 一项涉及38名年轻成年人 (50%为女性) 的横截面研究.
- 使用两种代谢系统测量VO2:Omnical和K5,跨越四种步行速度.
- 使用布兰德-阿尔特曼分析和t测试,比较测量的VO2与来自七个文献衍生的预测方程的估计值.
主要成果:
- 与测量VO2相比,所有测试的预测方程都表现出显著的偏差,误差在1.1至5.4毫升/公斤/分钟之间.
- 在所有测试的步行强度中,没有单一的预测方程显示与测量VO2一致.
- 韦扬方程表现出最低的平均偏差 (1.1mL/kg/min),这表明在评估的方程中表现优越.
结论:
- 现有的预测方程用于估计 VO2 在走路过程中缺乏足够的协议与可靠的代谢系统获得的测量值.
- 建议使用Weyand方程作为测试中最准确的选择,用于在步行时估计VO2.
- 需要进一步的研究来完善预测模型,以便在不同的人群和条件下更精确地估计VO2.
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