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Using wearable monitors to assess daily walking limitations induced by ischemic pain in peripheral artery disease.

Abstract：

PURPOSE:To develop, assess the feasibility of, and determine the clinical validity of an event-based analysis method using wearable monitors to quantify walking pain manifestations (WPMs) and stops induced by walking pain (SIWPs) during daily life walking in people with peripheral artery disease (PAD). METHODS:The following two conditions were studied: a standardized outdoor walking session (OWS) and a seven-day free-living measurement (FLM) period. The PAD participants (n = 23) wore an accelerometer and a watch. They were asked to press the event marker button on the watch to indicate events related to WPMs and SIWPs. To assess the clinical validity of the method, the computed pain-free walking time (PFWT) and maximal walking time (MWT) were compared with the PFWT and MWT assessed using standard treadmill walking protocols, respectively. RESULTS:Following OWSs, the PFWT[OWS] and MWT[OWS] were significantly correlated with the PFWT[Strandness] (r = .955, P < .001) and MWT[Strandness] (r = .821, P < .001), respectively. During the FLM, PAD participants experienced only 2 WPMs/day and 1 SIWP/day, although severely limited on the treadmill and during the OWS. The average WPMs/day were moderately correlated with the PFWT[Strandness] (r = -.54, P = .016). The PFWT[FLM] was on average 12 times longer than the PFWT[Strandness] . Interestingly, the intensity of the walking bouts as assessed by the accelerometer counts during the FLM was significantly lower than that during the OWS (45 ± 15 vs 66 ± 20 counts/s, P < .001). CONCLUSION:This new method offers opportunities for studies investigating the experience of living with PAD and the assessment of daily life walking capacity for both diagnostic and therapeutic purposes.

journal_name

Scand J Med Sci Sports

journal_title

Scandinavian journal of medicine & science in sports

authors

Chaudru S,Jehannin P,de Müllenheim PY,Klein H,Jaquinandi V,Mahé G,Le Faucheur A

doi

10.1111/sms.13511

subject

Has Abstract

pub_date

2019-11-01 00:00:00

pages

1813-1826

issue

eissn

0905-7188

issn

1600-0838

journal_volume

pub_type

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Using wearable monitors to assess daily walking limitations induced by ischemic pain in peripheral artery disease.