Journal
SENSORS
Volume 23, Issue 13, Pages -Publisher
MDPI
DOI: 10.3390/s23135868
Keywords
stroke; rehabilitation; accelerometry; upper extremity; daily life; arm usage; feedback
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This study evaluates the feasibility and efficacy of the Arm Activity Tracker (AAT) in stroke patients. The AAT is a wrist-worn device that stimulates upper extremity activity in daily life. The results show good acceptance and usability of the AAT, as well as increased paretic upper extremity activity. Further research is needed to analyze the efficacy of the intervention.
This study aims to evaluate the feasibility and explore the efficacy of the Arm Activity Tracker (AAT). The AAT is a device based on wrist-worn accelerometers that provides visual and tactile feedback to stimulate daily life upper extremity (UE) activity in stroke patients. Methods: A randomised, crossover within-subject study was conducted in sub-acute stroke patients admitted to a rehabilitation centre. Feasibility encompassed (1) adherence: the dropout rate and the number of participants with insufficient AAT data collection; (2) acceptance: the technology acceptance model (range: 7-112) and (3) usability: the system usability scale (range: 0-100). A two-way ANOVA was used to estimate the difference between the baseline, intervention and control conditions for (1) paretic UE activity and (2) UE activity ratio. Results: Seventeen stroke patients were included. A 29% dropout rate was observed, and two participants had insufficient data collection. Participants who adhered to the study reported good acceptance (median (IQR): 94 (77-111)) and usability (median (IQR): 77.5 (75-78.5)-). We found small to medium effect sizes favouring the intervention condition for paretic UE activity (& eta;(2)G = 0.07, p = 0.04) and ratio (& eta;(2)G = 0.11, p = 0.22). Conclusion: Participants who adhered to the study showed good acceptance and usability of the AAT and increased paretic UE activity. Dropouts should be further evaluated, and a sufficiently powered trial should be performed to analyse efficacy.
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