Seo Kanako, Takayanagi Naoto, Sudo Motoki, Yamashiro Yukari, Chiba Ippei, Makino Keitaro, Lee Sangyoon, Niki Yoshifumi, Shimada Hiroyuki
Tokyo Research Laboratories, Kao Corporation, 2-1-3 Bunka, Sumida-Ku, Tokyo, 131-8501, Japan.
Department of Preventive Gerontology, Center for Gerontology and Social Science, National Center for Geriatrics and Gerontology, 7-430 Morioka, Obu, Aichi, 474-8511, Japan.
Sci Rep. 2023 Feb 16;13(1):2783. doi: 10.1038/s41598-023-29805-4.
Gait speed over a short distance is associated with cognitive impairment in older adults. Recently, daily gait speed has been assessed using accelerometers. However, because daily gait speed is only weakly correlation with gait speed over a short distance, its association with cognitive impairment needs to be investigated. The present study compared the daily gait speed patterns of normal cognition (NC), mild cognitive impairment (MCI), and general cognitive impairment (GCI) subjects measured every 3 h for two weeks using accelerometers. A total of 1959 participants were classified into the NC (N = 1519), MCI (N = 353), and GCI groups (N = 87). The results showed that the average daily gait speed of the GCI group was significantly lower than that of the NC group (p = 0.03). Furthermore, the average daily gait speeds of the MCI and NC groups were the same. However, the average daily gait speed of the MCI group during a specific time (12-15 o'clock) was significantly lower than that of the NC group (p < 0.01). These results suggest that changes in daily patterns may be detected by measuring daily gait speed, which depends on the degree of cognitive function.
短距离步速与老年人认知障碍有关。最近，已使用加速度计评估日常步速。然而，由于日常步速与短距离步速仅存在微弱关联，其与认知障碍的关系仍需研究。本研究比较了正常认知（NC）、轻度认知障碍（MCI）和一般认知障碍（GCI）受试者使用加速度计每3小时测量一次，持续两周的日常步速模式。共有1959名参与者被分为NC组（N = 1519）、MCI组（N = 353）和GCI组（N = 87）。结果显示，GCI组的平均日常步速显著低于NC组（p = 0.03）。此外，MCI组和NC组的平均日常步速相同。然而，MCI组在特定时间（12至15点）的平均日常步速显著低于NC组（p < 0.01）。这些结果表明，通过测量日常步速可能检测到日常模式的变化，这取决于认知功能的程度。
