腿筋-四头肌强度比可能与社区生活的老年人中跌倒有关
Feng Yang1, Caroline Simpkins1, Antoine R Trammell2
1Department of Kinesiology and Health, Georgia State University, Atlanta 30303, USA.
概括
年长的成年人具有较低的同位数腿筋-四肢强度比率更有可能跌倒. 低于0.733的比率表明这种人群中跌倒的风险更高.
科学领域:
- 老年学是一门学科.
- 生物力学 生物力学
- 肌肉骨健康 肌肉骨健康
背景情况:
- 以前的研究将集中式腿筋-四肢力量不平衡与老年人的跌倒联系起来.
- 同度强度评估为临床使用提供了比集中度测量更方便的替代方案.
- 了解同度强度比对于老年人防摔策略至关重要.
研究的目的:
- 为了研究同度腿筋与四肢强度比率与社区居住的老年人中跌倒之间的关联.
- 要确定这个比率能否区分掉落的人和没有掉落的人.
- 为了建立一个预测性切断值的跌倒风险,基于异度腿筋与四肢的比率.
主要方法:
- 一项涉及111名社区老年人的横截面研究.
- 测量对称膝盖延伸器和 flexor 的强度.
- 根据过去一年的跌倒史,将参与者分为跌倒者 (≥1次跌倒) 和非跌倒者 (0次跌倒) 的分类.
- 两组之间的腿筋与四肢的比率的比较和接收器操作特征 (ROC) 分析.
主要成果:
- 与没有摔倒的人相比,摔倒者表现出明显较低的等比腿筋与四肢强度比率 (p=0.008).
- 一项ROC分析确定了0.733的比率是区分落体和非落体的最佳切线,准确率为64.0%.
- 该比率的每0.1个单位下降都会使下降的几率增加1.30倍.
结论:
- 在老年人中,同度腿筋与四肢强度比率是区分摔倒者与非摔倒者的有价值的工具.
- 低于0.733的比率表明跌倒的风险增加.
- 这个比率可以作为一个额外的,容易测量的风险因素在老年人的跌倒评估协议.
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