A usability study on mobile EMG-guided wrist extension training in subacute stroke patients-MyoGuide.
Hao-Ping Lin, Yang Xu, Xue Zhang and 7 others
PMID 38515192WHAT IT FOUND
Seven subacute stroke survivors rated a mobile EMG wrist-training app as good to excellent for usability.
They liked the game and feedback, but most could not put the armband on or navigate the tablet alone, so home use needs better design and support.
Key findings
01The median usability score was 82.5, rated as good, with one participant rating it excellent.
02Most participants needed help putting on the armband and operating the tablet, despite wanting to continue training.
03Training difficulty increased significantly over ten sessions, but progression was slower for the most impaired patients.
STILL TO COME
How it was doneWhat they foundWhat it means for PTsWhat it means for OTs
Read the rest of this summary
You get three full summaries a month, free, and we do not ask for a card. Search, the TL;DRs and your library stay unlimited either way.
What it does not show
Very small sample size (n=7) limits generalizability. Data were lost for two participants and one withdrew, reducing the analysed group. Therapists assisted with the app and armband during training, which may have inflated usability scores. SUS was collected only at the end of the study, after participants were familiar with the system. No control group or comparison to conventional therapy, so effectiveness cannot be assessed. The Myo armband used is no longer commercially available, though alternatives exist.
Declared interests
Funded by the Swiss Federal Institute of Technology Zurich. No other conflicts declared.
The easy way to misread this
Do not interpret the increased training difficulty or high usability scores as evidence that this system improves motor recovery. The study was a usability test in a supervised setting with no control group, and it did not measure clinical outcomes like FMA changes.