Bok Soo-Kyung, Lee Tae Heon, Lee Sang Sook
Department of Rehabilitation Medicine, Chungnam National University School of Medicine, Daejeon, Korea.
Ann Rehabil Med. 2013 Feb;37(1):10-6. doi: 10.5535/arm.2013.37.1.10. Epub 2013 Feb 28.
To investigate the changes of ankle strength and range of motion with aging and which of the ankle strength and range of motion are contributed to balance.
Sixty healthy people (24 men and 36 women) have undergone tests for ankle strength and range of motion, using Biodex System 4 Pro; a one-leg balance, including postural sway and stability index using a Balance System; in which data were collected in a self-reported Desmond fall risk questionnaire.
Participants are classified into 3 groups by age (group 1, 20-40 years; group 2, 40-65 years; group 3, over 65 years). Stability index and postural sway is significantly increased with aging. Ankle plantarflexor strength and ankle eversion range of motion is significantly decreased with aging. Pearson's correlation revealed that ankle plantarflexor strength is significantly correlated with anterior/posterior sway, and ankle eversion range of motion is significantly correlated with medial/lateral sway in the aged group (over 65 years).
Stability, ankle plantarflexor strength, and eversion range of motion is declined with aging. In addition, strength of ankle plantarflexor and eversion range of motion is significantly correlated with balance stability. Further studies are needed for programs to improve the strength of plantarflexor, and range of motion of eversion of the ankle are beneficial in improving balance, stability, and prevention of falling in the elderly.
研究踝关节力量和活动范围随年龄增长的变化情况，以及踝关节力量和活动范围中哪些因素对平衡有影响。
60名健康人（24名男性和36名女性）使用Biodex System 4 Pro进行了踝关节力量和活动范围测试；使用平衡系统进行单腿平衡测试，包括姿势摆动和稳定性指数；同时收集了一份自我报告的德斯蒙德跌倒风险问卷中的数据。
参与者按年龄分为3组（第1组，20 - 40岁；第2组，40 - 65岁；第3组，65岁以上）。随着年龄增长，稳定性指数和姿势摆动显著增加。踝关节跖屈力量和踝关节外翻活动范围随着年龄增长显著降低。皮尔逊相关性分析显示，在老年组（65岁以上）中，踝关节跖屈力量与前后摆动显著相关，踝关节外翻活动范围与内外侧摆动显著相关。
随着年龄增长，稳定性、踝关节跖屈力量和外翻活动范围下降。此外，踝关节跖屈力量和外翻活动范围与平衡稳定性显著相关。需要进一步研究以制定改善跖屈力量的方案，并且踝关节外翻活动范围的改善有利于提高老年人的平衡、稳定性并预防跌倒。
