People with Parkinsons often suffer from Gait Freeze. This decribed in wikipedia here: https://en.wikipedia.org/wiki/Parkinsonian_gait There is some evidence that appropriate cues like haptic feedback (ie vibration) can help with this.
Two great sources for information are the Parkinson foundation and the Michael J fox foundation:
and:
Note: Both Support research into cures and aids. We would support any research proposals using our equipment, and we are open to creative funding (hire/ loan/ buy back/ discount) to facilitate this.
Talk of key steps- including plans:
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8592896/
Several small studies suggest that vibrotactile cueing Can reduce FOG (Freeze of gait). for example:
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