在惯性测量单元和基于标记器的系统之间,中风后步态空间时间和联合远程指标的有效性
Heather L Knight1, Ethan B Schonhaut1, Camden J Jacobs1
1College of Health Professions, Medical University of South Carolina, Charleston, SC, USA.
Journal of applied biomechanics
|October 6, 2025
概括
惯性测量单位 (IMU) 在系统之间比较平均中风后步态参数时具有良好的有效性. 然而,IMU的一步一步的步态变化指标需要谨慎解释,因为其有效性较低.
科学领域:
- 生物力学 生物力学
- 康复技术 康复技术 康复技术
- 神经学 神经学
背景情况:
- 慢性中风幸存者经常表现出改变的步态模式,包括时空参数和联合游览.
- 这些步行指标是康复干预的关键目标.
- 惯性测量单元 (IMU) 提供了一个便携式解决方案,用于在临床环境之外量化步态.
研究的目的:
- 在慢性中风患者中,与基于标记器的系统相比,评估基于IMU的步态指标的有效性.
- 评估IMU和基于标记器的系统之间对平均步行参数和逐步变化的一致性.
- 确定IMU数据是否适用于临床步态分析和干预准.
主要方法:
- 61名慢性中风患者参与了这项研究.
- 在跑步机上行走时,使用IMU和基于标记器的系统进行了步态分析.
- 通过比较跨参与者 (平均参数) 和参与者内部 (逐步变异) 的指标来评估有效性.
主要成果:
- 跨参与者分析显示大多数联合游览指标的有效性很好或很好,支持与人口规范的比较.
- 参与者内部分析显示,步骤持续时间的有效性很好,但步骤长度和大多数联合游览的有效性差到相当.
- 这表明,应该谨慎使用基于IMU的步骤步骤步伐变化度量.
结论:
- 基于IMU的步态指标在慢性中风中表征平均步态参数方面具有良好的有效性,可与现有规范进行比较.
- 来自IMU的步骤步骤步伐变化指标的有效性有限,需要在临床实践中仔细解释.
- IMU对中风后的步态评估有希望,但对于精确的步态水平分析可能需要进一步精细化.
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