基于家庭的神经肌肉电刺激的跖屈肌力量训练可改善老年人的姿势稳定性极限。
Plantar Flexor Strength Training With Home-Based Neuromuscular Electrical Stimulation Improves Limits of Postural Stability in Older Adults.
出版信息
J Phys Act Health. 2020 Jun 1;17(6):657-661. doi: 10.1123/jpah.2019-0501.
BACKGROUND
The study aimed to determine whether improved muscle strength after 12 weeks of neuromuscular electrical stimulation (NMES) of plantar and dorsiflexors could result in better limits of stability in older adults.
METHODS
Twenty-seven participants were divided into a control group and a neuromuscular home-based training group. The training group performed a 3-month long NMES training of both plantar and dorsiflexors. Ankle flexor strength and limits of stability were measured. A mediation analysis was conducted to determine whether the NMES effect on the limits of stability was mediated by increased strength.
RESULTS
The NMES training increased plantar flexor strength (+47%; β = 0.217, P = .02), and this increase predicted the anterior limits of stability improvement (+27%; β = 0.527, P = .02). The effect of the NMES on the limits of stability was fully mediated by the plantar flexor strength increase (indirect effect: β = 0.1146; 95% confidence interval, 0.020-0.240).
CONCLUSION
It seems that NMES improves the limits of stability through its positive effect on muscle strength. NMES may be utilized in fall-prevention programs.
背景
本研究旨在确定 12 周的足底和背屈肌神经肌肉电刺激（NMES）是否能增强老年人的稳定性极限。
方法
27 名参与者被分为对照组和神经肌肉家庭训练组。训练组进行了为期 3 个月的足底和背屈肌 NMES 训练。测量了踝关节屈肌力量和稳定性极限。进行了中介分析，以确定 NMES 对稳定性极限的影响是否通过力量的增加来介导。
结果
NMES 训练增加了足底屈肌力量（+47%；β=0.217，P=0.02），这种增加预测了前向稳定性极限的改善（+27%；β=0.527，P=0.02）。NMES 对稳定性极限的影响完全由足底屈肌力量的增加介导（间接效应：β=0.1146；95%置信区间，0.020-0.240）。
结论
NMES 通过对肌肉力量的积极影响来改善稳定性极限。NMES 可用于预防跌倒的计划。
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