Ankle Bracelet Laser as a Novel Portable Device to Improve Walking in Patients With Parkinsonism: Randomized Crossover Controlled Trial.
Peeraya Ruthiraphong, Kwan Srisilpa, Chompoonuch Ratanasutiranont
PMID 41057048WHAT IT FOUND
A prototype ankle laser improved gait speed by 0.07 m/s and stride length by 0.17 m in 10 patients with parkinsonism during a brief clinic test.
The device automatically projects a line with each step, reducing the need for manual control. These immediate effects have not yet been proven to last in daily life.
Key findings
01Walking with the laser-on condition significantly improved gait speed by a mean of 0.07 m/s and stride length by 0.17 m compared to laser-off.
02Timed Up and Go (TUG) test times decreased by a mean of 7.69 seconds, and the Locomotor Rehabilitation Index (LRI) improved by 4.46%.
03No adverse effects, such as dizziness or blurred vision, were reported by participants while using the device.
STILL TO COME
How it was doneWhat they foundWhat it means for PTsWhat it means for OTs
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What it does not show
Very small sample size (n=10), limiting generalizability. Short-term effects only; no data on long-term retention or home use. Retrospective registration of the trial. No comparison with other visual cueing systems or standard care. Participants were not blinded to the intervention (laser on/off), which may influence effort or strategy.
Declared interests
The authors declared no conflicts of interest. The device is a prototype developed by the research team, with a planned future cost of approximately US $185.
The easy way to misread this
Do not assume these improvements will persist or transfer to daily life. The study measured immediate effects during a brief, supervised clinic trial, and the authors explicitly state that long-term retention and home use have not yet been tested.
Summarised by AI from the full paper, without a clinician reviewing it. Check it against the source before it changes what you do. Read it on PubMed →