轴性AX6加速器在技术和人类运动条件下的可变性和可靠性
Marcos Echevarría-Polo1,2, Pedro J Marín3, Esther Pueyo4,5
1EXER-GENUD "Growth, Exercise, NUtrition and Development" Research Group, University of Zaragoza, 50009 Zaragoza, Spain.
Sensors (Basel, Switzerland)
|April 26, 2025
概括
Axivity AX6加速度计在受控测试和人类运动中测量体力活动加速度时显示出低可变性和高可靠性. 需要对自由生活条件进行进一步的研究.
科学领域:
- 生物医学工程 生物医学工程
- 可穿戴技术可穿戴技术
- 人类运动分析 人类运动分析
背景情况:
- 可穿戴的加速度计对于客观的身体活动评估至关重要.
- 了解加速度计的可变性和可靠性是准确数据解释的关键.
- Axivity AX6是研究中广泛使用的设备.
研究的目的:
- 为了评估Axivity AX6加速度计的仪器内部和仪器间的变化.
- 在受控的技术和人类运动条件下评估Axivity AX6的可靠性.
- 为了确定Axivity AX6是否适合测量体力活动加速度.
主要方法:
- 使用不同频率和轴的振动平台进行受控技术测试.
- 在不同速度行走和跑步时,用加速度计对主体进行人体运动测试.
- 对变性 (CVintra,CVinter) 和可靠性 (ICC) 的统计分析.
主要成果:
- 在技术条件下,仪器内部 (3.3-4.5%) 和仪器间 (6.3-7.7%) 的变化率低.
- 在技术条件下高可靠性 (ICC=0.98),在人类运动条件下高可靠性 (ICC=0.98-0.99).
- 观察到的人类运动的差异低于临床上显著的最低值.
结论:
- Axivity AX6在受控环境中对体力活动测量表现出高可靠性和低可变性.
- 该设备适用于捕获代表典型人类运动的加速.
- 建议在自由生活条件下的验证用于全面的绩效评估.
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