School of Sports Science and Physical Education, Nanjing Normal University, Nanjing, China.
Department of Physical Education, Wuxi Luoshe Middle School, Wuxi, China.
Geriatr Gerontol Int. 2020 Jul;20(7):680-684. doi: 10.1111/ggi.13938. Epub 2020 May 20.
This study examined the effects of the starting position, distance and ending point on walking speed in older adults with both the usual and maximum walking speeds.
In total, 101 older community-dwellers aged between 60 and 74 years were included in this cross-sectional study. Participants were instructed to walk two distances (i.e., 10 and 25 m) at usual and maximum speeds twice. The paired t-test was used to examine the effects of starting positions (static start vs. dynamic start) and ending points (known vs. unknown ending point) on walking speed. Analysis of variance was used to explore walking speed differences among 4, 6, 8, 10, 15, 20 and 25 m walking tests.
Differences in walking speed between static start and dynamic start became larger with a decrease in the walking distance (Cohen's d: 4 m > 6 m > 10 m), and differences were larger in tests at the maximum walking speed (Cohen's d = 0.28-0.85) compared with those at usual walking speed (Cohen's d = 0.21-0.67). The walking speed increased with distance, but no significant changes were found among 10, 15, 20 and 25 m tests at the usual speed. Trivial speed differences were observed in walking speed between known (mean = 1.23-1.82 m/s) and unknown ending points (mean = 1.27-1.86 m/s; Cohen's d < 0.20).
Test parameters, particularly the starting position and walk distance, do influence walking speed measured in the short-distance walking speed test among older adults. Geriatr Gerontol Int ••; ••: ••-•• Geriatr Gerontol Int 2020; ••: ••-••.
本研究旨在探讨在通常和最大步行速度下，老年人起始位置、距离和终点对步行速度的影响。
共有 101 名年龄在 60 至 74 岁之间的社区老年人参与了这项横断面研究。要求参与者以通常和最大速度两次行走两个距离（即 10 米和 25 米）。采用配对 t 检验来检验起始位置（静态起始与动态起始）和终点（已知终点与未知终点）对步行速度的影响。方差分析用于探讨 4、6、8、10、15、20 和 25 米步行测试之间的步行速度差异。
随着步行距离的减小（Cohen's d：4 米>6 米>10 米），静态起始与动态起始之间的步行速度差异增大，最大步行速度下的差异大于通常步行速度（Cohen's d = 0.28-0.85）。步行速度随距离增加而增加，但通常步行速度下的 10、15、20 和 25 米测试之间未发现明显变化。在通常步行速度下，已知终点（平均 = 1.23-1.82m/s）和未知终点（平均 = 1.27-1.86m/s）之间的步行速度差异可忽略不计（Cohen's d < 0.20）。
测试参数，特别是起始位置和步行距离，确实会影响老年人短距离步行速度测试中的步行速度。
