脊柱姿势的惯性测量在日常生活中的可重复性
Ryan Riddick1,2, Mansour Abdullah Alshehri3, Paul Hodges1,2
1School of Health & Rehabilitation Sciences, The University of Queensland, St Lucia, QLD 4072, Australia.
Sensors (Basel, Switzerland)
|August 28, 2025
概括
惯性测量单位 (IMU) 显示在日常活动中测量脊柱运动范围的适度可重复性. 估计稳定的参考姿势是关键,标准化任务提高了准确性,尽管磁干扰会影响数据质量.
科学领域:
- 生物力学
- 可穿戴技术
- 卫生监测
背景情况:
- 身体的姿势,运动和睡眠都是重要的健康指标,
- 惯性测量单位 (IMU) 提供了对这些行为进行纵向监测的潜力.
- 在现实环境中描述IMU测量可重复性至关重要.
研究的目的:
- 评估基于IMU的脊柱姿势和运动测量的可重复性.
- 为了比较实验室和家庭标准化的IMU测量任务.
- 确定影响现实世界IMU应用数据质量的因素.
主要方法:
- 在标准化任务中使用IMU来测量脊柱的姿势和运动.
- 实验室和家庭测量的可重复性比较.
- 评估了估计参考脊柱姿势的五种方法.
- 在2天内评估数据质量问题,包括磁干扰.
主要成果:
- 在脊柱运动范围中发现了中度的重复性 (ICC = 0. 67).
- 绝对的脊柱角度变化较大;参考姿势的估计非常重要.
- 一组标准化任务产生了最佳的参考姿势估计 (ICC = 0.72 ± 0.17).
- 在43%的分析日常生活数据中,磁干扰对数据质量产生了显著影响.
结论:
- IMU对评估脊柱运动有前途,但需要强大的基准姿势方法.
- 标准化任务协议可以提高测量可重复性.
- 需要进一步的研究和传感器交叉验证,以优化IMU的健康监测方法.
- 减轻磁干扰的策略对于可靠的长期数据收集至关重要.
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