Wristband accelerometers to motivate arm exercise after stroke (WAVES): Activity data from a pilot randomised controlled trial
Annals of Physical and Rehabilitation Medicine(2018)
摘要
Introduction/Background Encouraging impaired limb use during routine and rehabilitation activities after stroke is challenging. We evaluated changes in stroke arm activity related to vibration prompts delivered by a wrist-worn accelerometer (“CueS wristband”). Material and method A pilot randomised controlled trial was conducted with adults Activity counts per minute (CPM) were calculated from CueS mean signal vector magnitude (1 s epoch) at the first (baseline) and the last (endpoint) review. Standard accelerometers recorded natural arm activity over 72 h starting at 4 and 8 weeks post-baseline. Mann Whitney U test compared CPM between groups, and for 1 hour before/after prompts amongst intervention participants. Results Thirty-three participants (14 intervention; 19 control) enrolled over 16 months: mean age 71 years (SD11); 13 male; mean days post-stroke 30 (SD19); median baseline Action Research Arm Test 20/57 [IQR 3.5,41]. Median number of prompts delivered were 7 per participant/day [IQR: 6,8]. Median CPM during 1 hour before/after prompts was 651 versus 759 (+16.6%; P = 0.002). CPM increased immediately after prompting, suggesting a direct behavioural impact. Compared to control, the intervention group continued to increase CPM beyond wristband removal. Whilst these results are encouraging, this was a small study and data may not reflect only arm activity. Conclusion Personalised prompts delivered by a wrist-worn accelerometer may enhance self-directed arm activity after stroke.
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关键词
Stroke,Upper limb,Accelerometer
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