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Lookup NU author(s): Ruth Da Silva, Emerita Professor Helen Rodgers, Dr Lisa Shaw, Sarah Moore, Dan Jackson, Dr Richard Francis, Dr Lou Sutcliffe, Dr Madeline Balaam, Dr Thomas Ploetz, Lianne Brkic, Professor Christopher PriceORCiD
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND).
© 2018 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 < 3 months after stroke causing any arm impairment. All received instruction for a self-directed four-week programme encouraging bimanual tasks, and wore a wristband on the impaired side 8am–8pm. Intervention wristbands were programmed to deliver vibration prompts if hourly activity targets were unmet. To allow for incremental recovery, patient preference and diurnal variability, the target was selected as 5%, 10% or 20% above median levels recorded hourly over the previous 3 days. Data were downloaded at twice weekly reviews. 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.
Author(s): Da Silva R, Rodgers H, Shaw L, van Wijck F, Moore SA, Jackson D, Francis R, Sutcliffe L, Balaam M, Ploetz T, Brkic L, Price CI
Publication type: Conference Proceedings (inc. Abstract)
Publication status: Published
Conference Name: 12th World Congress of the International Society of Physical and Rehabilitation Medicine
Year of Conference: 2018
Pages: e31-e31
Online publication date: 13/07/2018
Acceptance date: 02/04/2018
Date deposited: 20/07/2018
Publisher: Elsevier Masson SAS
URL: https://doi.org/10.1016/j.rehab.2018.05.067
DOI: 10.1016/j.rehab.2018.05.067
Series Title: Annals of Physical and Rehabilitation Medicine
