Balloon-equipped ‘wearable robot’ could help stroke survivors
Mack DeGeurin
created: Aug. 21, 2025, 6:10 p.m. | updated: Aug. 31, 2025, 5:44 p.m.
A first-of-its-kind, soft, vest-like wearable designed by Harvard researchers could help stroke survivors and people living with ALS regain crucial upper limb movement.
The researchers call the device a “wearable robot,” which uses inflatable balloons positioned under a patient’s arm that bulge and contract based on the desired movement.
A combination of machine learning software and a separate physics-based model helps the robot interpret the patient’s intended movements and personalize actions accordingly.
I didn’t feel like a lab rat or a cog in a wheel.”Prabhat Pathak and James Arnold demonstrate the wearable robot in the lab.
The soft wearable robot explored by the Harvard researchers is less complicated (and less capable) than a full-body exosuit, but that may also be part of its appeal.
2 months, 3 weeks ago: Popular Science