School of Nursing, 6889Virginia Commonwealth University, Richmond, VA, USA.
Department of Biostatistics, School of Medicine, 6886Virginia Commonwealth University, Richmond, VA, USA.
J Appl Gerontol. 2022 Apr;41(4):1186-1195. doi: 10.1177/07334648211054834. Epub 2021 Oct 31.
This study aimed to examine the feasibility of using global positioning system (GPS) watches to examine relationships between GPS-based life-space mobility (LSM) metrics and self-report LSM and health measures (physical, psychological, and cognitive function) among older adults. Thirty participants wore a Fitbit Surge for 3 days. Eight spatial and temporal LSM measures were derived from GPS data. About 90% of in-home movement speeds were zero, indicating the sedentary lifestyle, but they made some active out-of-home trips as the total distance traveled and size of movement area indicated. There was a significant difference in total distance traveled and 95th percentile of movement speed between mild cognitive and intact cognition groups. GPS-based higher proportion of out-of-home time was significantly associated with greater functional fitness. Greater GPS use hours were significantly associated with higher cognition. These findings suggest the potential of GPS watches to continuously monitor changes in functional health to inform prevention efforts.
本研究旨在探讨使用全球定位系统 (GPS) 手表来检查基于 GPS 的生活空间流动性 (LSM) 指标与老年人的自我报告 LSM 和健康测量（身体、心理和认知功能）之间关系的可行性。30 名参与者佩戴 Fitbit Surge 三天。从 GPS 数据中得出了八个空间和时间 LSM 指标。大约 90%的室内移动速度为零，表明是久坐不动的生活方式，但他们也进行了一些活跃的户外出行，因为总出行距离和移动区域的大小表明了这一点。在总出行距离和移动速度 95 百分位方面，轻度认知障碍组和认知完好组之间存在显著差异。基于 GPS 的更高比例的户外活动时间与更好的功能健康显著相关。更多的 GPS 使用时间与更高的认知能力显著相关。这些发现表明，GPS 手表具有连续监测功能健康变化的潜力，可用于预防措施。
