科研之友
微信
新浪微博
Facebook
分享链接
摘要
Objective: This study determined for the first time the clinical applicability of a global positioning system (GPS)monitored community-based walking ability assessment in a large cohort of patients with peripheral artery disease (PAD). %26lt;br%26gt;Methods: A multicenter study was conducted among PAD patients who complained of intermittent claudication. Patients equipped with a GPS device performed a community-based outdoor walk. We determined the number of technically satisfactory-GPS recordings (attempt No. 1). Patients with unsatisfactory GPS recordings were asked to performa second attempt (attemptNo. 2). From the satisfactory recordings obtained after attempts No. 1 and No. 2, we analyzed several GPS parameters to provide clinical information on the patients%26apos; walking ability. Results are reported as median (interquartile range). %26lt;br%26gt;Results: A total of 218 patients performed an outdoor walk. GPS recordings were technically satisfactory in 185 patients (85%) and in 203 (93%) after attempts No. 1 and No. 2, respectively. The highest measured distance between two stops during community walking was 678 m (IQR, 381-1333 m), whereas self-reported maximal walking distance was 250 m (IQR, 150-400 m; P%26lt;.001). Walking speed was 3.6 km/h (IQR, 3.1-3.9 km/h), with few variations during the walk. Among the patients who had to stop during the walk, the stop durations were %26lt;10 minutes in all but one individual. %26lt;br%26gt;Conclusions: GPS is applicable for the nonsupervised multicenter recording of walking ability in the community. In the future, it may facilitate objective community-based assessment of walking ability, allow for the adequate monitoring of home-based walking programs, and for the study of new dimensions of walking in PAD patients with intermittent claudication.
- 出版日期2014-10
