Mayo Clinic, Rochester, MN, USA.
Am J Mens Health. 2011 Jan;5(1):11-7. doi: 10.1177/1557988309357232. Epub 2009 Dec 22.
Although attention-dividing dual tasks hinder gait performance in older persons, gender differences in gait have not been examined. The purpose of this study was to examine whether gait performance differs between older men and women during dual task walking. A total of 44 healthy adults (20 men and 24 women) aged 65 years or older participated in the study. Participants walked under normal and dual task (backward spelling) conditions at self-selected speeds. Mean gait speed and stride-to-stride variability in gait speed were quantified with GAITRite( ®) instrumentation. Whereas gait speed decreased and variability in gait speed increased in both groups during dual task walking, men walked with greater variability during dual task walking than did women. The magnitude of the increase in variability in gait speed observed in men indicates that stride-to-stride variability in gait speed during dual task walking requires more investigation as a potential risk factor for falls in older men.
尽管分散注意力的双重任务会阻碍老年人的步态表现，但性别对步态的影响尚未得到研究。本研究旨在探讨在双重任务行走时，老年人的步态表现是否存在性别差异。共有 44 名健康成年人（20 名男性和 24 名女性）年龄在 65 岁或以上参与了研究。参与者在自我选择的速度下以正常和双重任务（向后拼写）条件行走。使用 GAITRite ® 仪器量化平均步态速度和步态速度的步间变异性。虽然在双重任务行走时，两组的步态速度都降低，步态速度的变异性增加，但男性在双重任务行走时的变异性更大。男性观察到的步态速度变异性增加幅度表明，在双重任务行走时步态速度的步间变异性需要进一步研究，作为老年人跌倒的潜在危险因素。
