Feasibility, safety, and efficacy of task-oriented mirrored robotic training on upper-limb functions and activities of daily living in subacute poststroke patients: a pilot study.
You-Ze He, Zhen-Ming Huang, Hai-Yin Deng and 3 others
PMID 37869761WHAT IT FOUND
Adding 30 minutes of mirrored robotic training to usual care improved arm function and daily living scores more than usual care alone in 32 subacute stroke patients.
The study was a small pilot with no randomisation, so treat these gains as preliminary rather than proven.
Key findings
01The experimental group showed significantly greater improvements in Fugl-Meyer Assessment and Modified Barthel Index scores than the control group after controlling for baseline scores.
02Both groups improved in self-efficacy, but there was no significant difference between the groups.
03The robotic system was rated as having good usability and high patient satisfaction by the 16 participants in the experimental group.
STILL TO COME
How it was doneWhat they foundWhat it means for PTsWhat it means for OTsWhat it means for SLPs
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What it does not show
The study was a small pilot with only 32 participants, limiting the generalisability of the findings. Participants were assigned to groups based on matching criteria rather than randomisation, introducing potential selection bias. The authors state that loss of follow-up assessments due to resource and time limitations may limit generalisations. Patients with severe lateral neglect were excluded, so the results do not apply to this common poststroke population. The study compared robotic training plus conventional therapy against conventional therapy alone, so the specific contribution of the robot cannot be separated from the extra 30 minutes of treatment time.
Declared interests
One author was employed by the company that manufactures the robot used in the study. The work was funded by university and government innovation projects.
The easy way to misread this
Do not assume the robot itself caused the improvement. The experimental group received 30 minutes of robot training plus 30 minutes of conventional therapy, while the control group received only 60 minutes of conventional therapy. The extra treatment time may explain the greater gains, and the non-randomised design means the groups might not have been truly comparable.