A Randomized Control Trial of a Virtually Delivered Program for Increasing Upper Limb Activity After Stroke.

Background: Upper limb activity following stroke is low, which may limit recovery. We investigated whether a virtually-delivered upper limb program, that included a wearable device with reach-to-grasp feedback, would increase upper limb activity after stroke.

Methods: This was a parallel-group, assessor-blinded, randomized control trial conducted at 6 sites across 5 provinces of the CanStroke Recovery Trials Platform between 2020 to 2022. Participants (n = 73) were community-living, less than 1 year post stroke, and had residual arm movement and upper limb use limitations. Participants were randomized via a central web-based randomization service to receive a virtually delivered program (Virtual Arm Boot Camp [V-ABC], n = 36) or waitlist control (n = 37) receiving usual care. V-ABC consisted of a home exercise program, feedback from a wrist-worn device to monitor reach-to-grasp counts, and 6 virtual sessions with a trained therapist over 3 weeks. The primary outcome was the average daily reach-to-grasp counts over 3 days at 4 weeks post baseline assessment. Secondary outcomes included upper limb function, self-reported use, and quality of life. Within-subject changes between pre, post treatment, and 2 months follow up for all participants were also examined as a tertiary analysis.

Results: The V-ABC group demonstrated greater average daily reach-to-grasp counts (primary outcome) at 4 weeks compared to control (mean difference = 368, 95% confidence interval = 6-730,  = .046).

Conclusions: This study provided evidence that a virtually delivered upper limb program that consists of exercise, feedback from a wearable device, and therapist support can increase real-world upper limb activity following stroke.

Clinical Trial Registration: NCT04232163.