可穿戴近红外光谱:在不同耐力骑自行车运动强度的运动中,可靠性和灵敏度
J S Hasegawa1, R A Azevedo1, A C Silveira1
1Grupo de Estudos em Aptidão Aeróbia, Escola de Educação Física e Esporte, Universidade de São Paulo, São Paulo, SP, Brasil.
概括
可穿戴近红外光谱仪 (wNIRS) 可靠地测量运动期间组织氧和度 (SmO2). 该设备对运动强度的变化敏感,准确地反映了中度和重度运动中的局部代谢变化.
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
- 运动科学 运动科学 运动科学
背景情况:
- 评估运动强度依赖于准确的生理测量.
- 可穿戴近红外光谱 (wNIRS) 提供了一种非侵入性方法来监测肌肉氧化.
- 了解wNIRS的可靠性和敏感性对于其在运动研究中的应用至关重要.
研究的目的:
- 评估可穿戴近红外光谱仪 (wNIRS) 设备的可靠性和灵敏度.
- 评估 wNIRS 在中度和重度运动强度领域的表现.
- 为了确定wNIRS是否可以在不同运动负载期间跟踪局部代谢变化.
主要方法:
- 11名男性接受了增量运动测试和四次次最大常量负荷 (中度和重强度) 试验.
- 通过wNIRS记录了组织氧和指数 (SmO2) 和肺氧吸收 (V̇O2) 的连续测量.
- 使用类内相关系数 (ICC) 和变化系数 (CV) 评估可靠性;灵敏度由SmO2和V̇O2在3到6分钟的变化来确定.
主要成果:
- wNIRS在SmO2测量方面表现出良好的可靠性 (ICC ≥0.84,CV ≤4.1%).
- 在中等强度运动中观察到平稳状态的SmO2和V̇O2.
- 在高强度运动中,SmO2下降,V̇O2增加,这表明对强度变化的敏感性.
结论:
- wNIRS设备在运动期间测量肌肉氧化量的高可靠性.
- wNIRS对运动诱导的代谢变化敏感,可以区分中等强度和重强度.
- wNIRS是一种可行的工具,用于在运动环境中监测局部组织氧化和代谢反应.
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