将肌肉氧和度的可靠性与骑自行车运动强度的常见性能和生理标记进行比较
Assaf Yogev1, Jem Arnold1, Hannah Nelson1
1Environmental Physiology Laboratory, The University of British Columbia, School of Kinesiology, Vancouver, BC, Canada.
可穿戴的近红外光谱 (NIRS) 可靠地测量运动期间的肌肉氧和 (SmO) . 这种非侵入性方法显示出良好的再测试可靠性,与VO和HR相比,使其适合监测内部训练负载.
科学领域:
- 运动生理学 运动生理学
- 生物医学工程 生物医学工程
- 体育科学 运动科学 运动科学
背景情况:
- 可穿戴近红外光谱 (NIRS) 为评估肌肉氧和 (SmO) 提供了一种非侵入性方法.
- 之前的研究表明,NIRS在静止状态下具有良好的测试重复测试可靠性.
- 在不同强度的运动中,NIRS衍生的SmO2的可靠性仍需要进行彻底的研究.
研究的目的:
- 为了评估肌肉氧和 (SmO2) 的测试-重新测试可靠性,通过可穿戴的NIRS设备 (Moxy监视器) 在巨大的侧面测量.
- 将SmO2的可靠性与其他生理指标进行比较,例如氧气消耗 (V̇O2),心率 (HR),血乳酸 ([BLa]),以及运动强度的感知劳动力 (RPE) 评级.
- 测试会议之间的参与者内部协议量化.
主要方法:
- 21名训练有素的骑自行车者进行了两个增量多阶段骑自行车测试.
- 在每个运动阶段测量肌肉氧和 (SmO2),V̇O2,HR,[BLa]和RPE.
- 使用类内相关系数 (ICC),测量标准误差 (SEM) 和最小可检测变化 (MDC) 来评估可靠性.
主要成果:
- 对于任何强度的测量变量,在试验之间没有发现任何显著差异.
- SmO2的可靠性很好或非常好 (ICC:0.81-0.90).
- SmO2的可靠性与V̇O2 (ICC: 0.73-0.97) 和HR (ICC: 0.87-0.92) 相比,并且优于[BLa] (ICC: 0.44-0.74) 和RPE (ICC: 0.29-0.70).
结论:
- 可穿戴NIRS在增量循环过程中提供可靠的SmO2测量,跨越运动强度.
- SmO2显示出与V̇O2和HR相似的可靠性,并且比[BLa]和RPE更高的可靠性.
- NIRS是一个合适的非侵入性工具,用于监测内部训练负载与其他生理指标一起.
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