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低于值的白噪声振动会改变老年人的动
Eryn D Gerber1, Camilo Giraldo2, Brett Whorley1
1Bioengineering Graduate Program, School of Engineering, University of Kansas, Lawrence, KS, USA.
Human movement science
|June 30, 2023
概括
低于值的振动显著改变了老年人的摇摆模式,特别影响了的组成部分. 这一发现表明,个性化的随机共振疗法有可能改善平衡并减少跌倒.
科学领域:
- 生物医学工程 生物医学工程
- 神经科学是一个神经科学.
- 老年学是指老年学的学科.
背景情况:
- 体感缺陷是老年人跌倒的主要原因之一.
- 随机共振 (SR) 显示出改善平衡障碍中的稳定性的前景.
- 对SR对体感的影响的生理机制尚不清楚.
研究的目的:
- 研究值以下振动刺激对姿势摇摆的生理影响.
- 在漫游- (RT) 框架下分析波动.
- 探索振动对姿势控制的外周和脊柱机制的影响.
主要方法:
- 10名健康的老年人 (60-65岁) 参加了随机的实验和安慰剂会议.
- 使用AMTI强力板测量静止的站立摆动.
- 在实验中,在90%的感觉值下进行了振动刺激.
- 压力中心 (COP),漫游 (RM) 和 (TR) 的时间序列数据被分析为范围,可变性和可预测性.
主要成果:
- 在安慰剂治疗期间,没有观察到波动的显著变化.
- 低值振动显著增加了前后后 (AP) TR范围和中侧 (ML) TR平方根平均值 (RMS).
- AP COP可预测性和AP & ML TR可预测性也显示显著增加,表明波动动态发生了变化.
结论:
- 低于值的振动刺激可测量地影响了老年人的姿势摆动.
- 摇摆的震成分对振动特别敏感,这表明外周/脊柱机制参与.
- 结果支持在未来的平衡干预中使用SR,并有可能为减少跌倒的量身定制疗法提供支持.
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