Human Health Sciences, Graduate School of Medicine, Kyoto University, Kyoto, Japan.
Research Fellow of Japan Society for the Promotion of Science, Tokyo, Japan.
Geriatr Gerontol Int. 2021 May;21(5):404-410. doi: 10.1111/ggi.14150. Epub 2021 Mar 29.
The present study aimed to investigate the age-related changes in gait speeds and asymmetry during circular and straight-line gaits among older adults aged 60-79 years.
The study included 391 community-dwelling older adults aged >60 years, who participated in the Nagahama cohort study. They were assigned to four age groups: 60-64 years (early 60s), 65-69 years (late 60s), 70-74 years (early 70s) and 75-79 years (late 70s). For the circular gait test, the time required to walk twice around a 1-m diameter circle for right and left rotations were measured. The average time of the two trials was measured as the circular gait time, and the side-to-side difference in the circular gait times was calculated as an asymmetry index. Walking speed, asymmetry of step length, and asymmetry of stance duration time during straight-line gait at comfortable and maximal walking pace were measured.
Circular gait time in older women in the late 70s group was significantly slower than that in other age groups; however, no age-related change was observed in older men. Maximal gait speeds in the early and late 70s groups were significantly slower than those in the early 60s group.
Age-related decline in circular gait speed was observed in older women aged ≥75 years, but not in older men. Maximal straight-line gait speed decreased significantly in both genders after the age of 70 years. Geriatr Gerontol Int 2021; 21: 404-410.
本研究旨在探讨 60-79 岁老年人在进行圆形和直线步态时，步态速度和不对称性的年龄变化。
本研究纳入了 391 名居住在社区的 60 岁以上老年人，他们参加了长滨队列研究。他们被分为四个年龄组：60-64 岁（60 岁早期）、65-69 岁（60 岁晚期）、70-74 岁（70 岁早期）和 75-79 岁（70 岁晚期）。对于圆形步态测试，测量了左右旋转各走两圈所需的时间。两次试验的平均时间被测量为圆形步态时间，并且计算圆形步态时间的两侧差异作为不对称指数。在舒适和最大步行速度下，测量直线步态时的步行速度、步长不对称性和站立时间不对称性。
70 岁晚期女性的圆形步态时间明显慢于其他年龄组；然而，男性没有观察到与年龄相关的变化。70 岁早期和晚期的最大步行速度明显慢于 60 岁早期组。
≥75 岁的老年女性的圆形步态速度呈年龄相关性下降，但老年男性则没有。70 岁后，两性的最大直线步行速度均显著下降。老年医学与老年病学国际 2021；21：404-410。
