Effects of virtual reality training using Nintendo Wii and treadmill walking exercise on balance and walking for stroke patients.
Yo-Soon Bang, Kyung Hyun Son, Hyun Jin Kim
PMID 27942130WHAT IT FOUND
After training, both Wii and treadmill programs lowered standing balance percentages; Wii training, which included yoga, strength, aerobic, and balance tasks, also increased walking cadence.
The study was small and included only patients who could already stand and walk independently.
Key findings
01After eight weeks, both the virtual reality and treadmill groups showed significant changes in balance.
02After eight weeks, the virtual reality group, which performed yoga, strength, aerobic, and balance tasks, showed significant changes in walking.
03Post-training balance values differed significantly between groups, with lower left/right and anterior/posterior weight-bearing percentages in the virtual reality group.
STILL TO COME
How it was doneWhat they foundWhat it means for PTs
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What it does not show
Only 40 stroke patients were included, and all had to be able to communicate, follow instructions, stand and walk independently, and have no pain, vision, hearing, or vestibular disability, so the findings may not apply to more impaired stroke patients. The paper does not name a primary outcome, so it is unclear which balance or walking result was most important. The methods do not describe whether participants, therapists, or outcome assessors were blinded. The virtual reality group performed yoga, strength, aerobic, and balance tasks together, so the study cannot separate the effect of any single component. The study followed patients for only eight weeks and did not report fall outcomes or longer-term function. The paper reports statistical significance but does not state whether the changes were clinically meaningful.
The easy way to misread this
Do not conclude that Wii training alone is proven better for all stroke patients or reduces falls. The Wii group also performed yoga, strength, aerobic, and balance tasks, so the contribution of any single component cannot be separated; the study did not measure falls and included only patients who could already stand and walk independently.