肌肉氧和度的可靠性用于评估运动强度和膝关节负荷指标
Aldo A Vasquez-Bonilla1, Rodrigo Yáñez-Sepúlveda2, Matías Monsalves-Álvarez3,4
1Faculty of Sport Sciences, University of Extremadura, 10001 Caceres, Spain.
Journal of functional morphology and kinesiology
|June 26, 2025
概括
肌肉氧和 (SmO2) 的可靠性随着运动强度的提高而下降,与角速度和膝盖负荷相关的显著下降. SmO2 是一个关键的性能预测指标,特别是在高强度区域.
科学领域:
- 运动医学 运动医学
- 运动生理学 运动生理学
- 生物医学工程 生物医学工程
背景情况:
- 肌肉氧和 (SmO2) 对于了解运动期间的肌肉代谢至关重要.
- 惯性测量单元 (IMU) 传感器为实时运动监测提供了潜力.
- SmO2的可靠性及其与不同强度的IMU数据的相关性需要进一步调查.
研究的目的:
- 评估肌肉氧和度 (SmO2) 测量的可靠性.
- 为了评估SmO2和IMU传感器数据在不同运动强度下之间的相关性.
- 确定SmO2作为性能预测指标和内部负载标记物的作用.
主要方法:
- 十四名大学运动员接受了渐进式人体力度计,直到疲.
- 肌肉氧和度 (SmO2) 与膝盖上的IMU传感器数据一起被测量.
- 确定了VO2max,训练区,心率和工作负载.
主要成果:
- 在中等强度 (ICC 0.744) 时,SmO2的可靠性中等,但在更高强度 (ICC ~0.577-0.594,CV%至77.7%) 时具有很高的可变性.
- 在中度至高强度和高强度区域之间观察到显著的SmO2差异 (Δ 27-35%,p < 0.001).
- 随着角速度的增加,SmO2显著下降 (β = -13.9,p < 0.001),并且与较高强度区域的膝关节负荷相关 (r = 0.455-0.569,p < 0.012).
结论:
- 肌肉氧和度 (SmO2) 是在最大增量运动期间的可靠性能预测指标,特别是在高强度运动中.
- SmO2显示出作为运动期间内膝关节肌肉负荷的生理标记物的潜力.
- 运动期间SmO2的减少受角速度和膝盖冲击的影响.
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