Providing Real-Time Wearable Feedback to Increase Hand Use after Stroke: A Randomized, Controlled Trial

Area of Science:

• Neurorehabilitation
• Biomedical Engineering
• Human Movement Science

Background:

• Stroke survivors often underutilize their impaired hand despite retaining functional ability.
• Reduced hand use post-stroke can lead to long-term functional decline.

Purpose of the Study:

• To investigate if real-time wearable feedback and a daily goal can increase hand use intensity in chronic stroke survivors.
• To assess the impact of wearable feedback on hand movement counts and functional ability.

Main Methods:

• Twenty participants with chronic stroke were randomized into a feedback group or a control group for 3 weeks.
• The Manumeter, a wearable device, tracked finger and wrist movements.
• The feedback group received real-time hand count feedback and a daily goal; the control group did not.

Main Results:

• The feedback group wore the device longer and significantly increased their daily hand movement counts over time.
• The control group showed no significant increase in hand movement counts.
• No significant differences in clinical measures of hand movement ability were observed between groups post-intervention.

Conclusions:

• Wearable feedback can temporarily increase hand use intensity in stroke survivors.
• A 3-week intervention with wearable feedback does not appear to provide enduring therapeutic gains in hand function.
• Disuse of the impaired hand after stroke is modifiable in the short term.