Effects of Distraction and Feedback on Stroke Rehabilitation
Author Information
Author(s): Secoli Riccardo, Milot Marie-Helene, Rosati Giulio, Reinkensmeyer David J
Primary Institution: University of Padua
Hypothesis
Patients who are distracted by a secondary task might reduce effort for a movement task, especially if the kinematic effects of the effort are ameliorated by robotic assistance.
Conclusion
Visual distraction decreased participants' effort during a standard robot-assisted movement training task, but auditory feedback helped maintain their effort levels.
Supporting Evidence
- Participants with stroke halved their effort and doubled their tracking error when performing the visual distracter task.
- With sound feedback, participants increased their effort and decreased their tracking error close to baseline levels.
- The effects of distraction were significantly smaller for participants using their non-paretic arm.
Takeaway
When people recovering from a stroke are distracted, they might not try as hard to move. But if they hear sounds that help them focus, they can do better.
Methodology
Participants performed a tracking task with varying conditions of visual distraction and auditory feedback while using a robotic arm exoskeleton.
Potential Biases
Potential bias due to the small sample size and specific participant selection.
Limitations
The study had a narrow range of impairments and excluded individuals with severe impairments.
Participant Demographics
14 participants with left hemiparesis, 5 with right hemiparesis, and 14 healthy controls; mean age of stroke participants was 56.3 years.
Statistical Information
P-Value
p = 0.001
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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