Effects of continuous visual feedback during sitting balance training in chronic stroke survivors.
Laura Pellegrino, Psiche Giannoni, Lucio Marinelli and 1 others
PMID 29037206WHAT IT FOUND
When the screen was removed after training, chronic stroke survivors did not improve balance without feedback.
They did improve while the screen was on.
Key findings
01During training with continuous visual feedback, ten participants improved movement duration, accuracy and smoothness; P11 did not improve.
02After training, performance without visual feedback did not improve compared with before training.
03Only three of ten participants showed any transfer to the no-feedback test.
STILL TO COME
How it was doneWhat they foundWhat it means for PTs
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What it does not show
The study had only 11 participants, and 10 were analysed for transfer, so individual differences could not be explained. There was no age and sex matched control group, so changes cannot be compared with usual care. The training was a single laboratory session of about 1 h, not a multi-day programme. People with very poor balance, severe vision problems, neglect, or inability to understand simple instructions were excluded. The study measured cursor reaching and home-position accuracy in a laboratory test, not daily activities.
The easy way to misread this
Do not conclude that continuous visual feedback training improves sitting balance in daily life. The improvement occurred only while the screen was on, and it did not transfer to the no-feedback test.