Webber Sandra C, Porter Michelle M
Department of Physiology, Faculty of Kinesiology and Recreation Management, University of Manitoba, Winnipeg, MB, Canada.
J Aging Phys Act. 2009 Oct;17(4):455-67. doi: 10.1123/japa.17.4.455.
This exploratory study examined the feasibility of using Garmin global positioning system (GPS) watches and ActiGraph accelerometers to monitor walking and other aspects of community mobility in older adults. After accuracy at slow walking speeds was initially determined, 20 older adults (74.4 +/- 4.2 yr) wore the devices for 1 day. Steps, distances, and speeds (on foot and in vehicle) were determined. GPS data acquisition varied from 43 min to over 12 hr, with 55% of participants having more than 8 hr between initial and final data-collection points. When GPS data were acquired without interruptions, detailed mobility information was obtained regarding the timing, distances covered, and speeds reached during trips away from home. Although GPS and accelerometry technology offer promise for monitoring community mobility patterns, new GPS solutions are required that allow for data collection over an extended period of time between indoor and outdoor environments.
这项探索性研究检验了使用佳明全球定位系统（GPS）手表和ActiGraph加速度计来监测老年人行走及社区移动性其他方面的可行性。在初步确定慢步行走速度下的准确性之后，20名老年人（74.4±4.2岁）佩戴这些设备1天。测定了步数、距离和速度（步行和乘车）。GPS数据采集时间从43分钟到超过12小时不等，55%的参与者在初始和最终数据收集点之间的数据采集时间超过8小时。当GPS数据无中断采集时，可获得有关离家出行期间的时间安排、行走距离和达到的速度等详细移动性信息。尽管GPS和加速度测量技术有望用于监测社区移动模式，但需要新的GPS解决方案，以便在室内和室外环境之间的较长时间段内进行数据采集。
