Effects of aging on gait patterns in the healthy elderly
Effects of aging on gait patterns in the healthy elderly
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DOI：
10.1537/ase.060309
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发表时间：
2007-04-01
影响因子：
0.7
通讯作者：
Hanaoka, Michiko
中科院分区：
文献类型：
--
作者：
Kimura, Tasuku;Kobayashi, Hiromitsu;Hanaoka, Michiko
对52例健康老年人的自由步态进行了检查。所有的研究对象都是志愿者，年龄在65岁以上，居住在日本石川县加贺地区的社区。他们身体健康，足够活跃，可以自己去研究地点。青年志愿者组由20名学生组成。在两组中，女性和男性的比例相似。健康的老年人比年轻人走得慢。他们的速度较慢主要是由于他们的步幅较短。当步态参数以无量纲数字的形式呈现时，仍然观察到年轻人和老年人组之间的差异。老年人握力较弱，睁眼时单腿平衡能力较短。在老年人中，每天的步数与年龄呈负相关。在老年组中，年龄和步行速度（直接测量或以无量纲数测量）之间以及年龄和步幅之间也存在负相关。老年组相对站位相持续时间与年龄呈正相关。速度慢可能与日常活动量低、肌肉力量减少和平衡能力下降有关。老年人站立阶段持续时间长、速度慢可能是平衡受损的适应性特征。
The free gait of 52 healthy elderly persons was examined. All the subjects were volunteers, aged 65 years or older, and lived in the community in the Kaga area, Ishikawa Prefecture, Japan. They were healthy and active enough to attend the study location by themselves. The comparison group of young adults consisted of 20 volunteer students. The percentages of females and males were similar in the two groups. The healthy elderly walked more slowly than the young adults. Their slower speed was largely caused by their shorter stride length. Differences were still observed between the young and elderly groups when gait parameters were presented in the form of dimensionless numbers. The elderly were weaker in grip strength and had shorter single-leg balance with eyes open than the young adults. The number of steps per day correlated negatively with age within the elderly group. Negative correlations between age and walking speed, as measured directly or in terms of dimensionless numbers, and between age and stride length were also observed within the elderly group. The relative stance phase duration correlated positively with age within the elderly group. Slow speed may be related to low daily activity, reduced muscle power, and diminished balance ability. Long stance phase duration and slow speed in the elderly could be an adaptive characteristic in response to impaired balance.