Experimental PBT Study in Fall-prone Subjects

The study will investigate safety, usability, feasibility and preliminary efficacy of perturbation-based training in participants post-stroke and older adults with mild balance deficits. Both group will receive three weks of training. The primary outcome measure will be derived from laboratory-induced falls.

Inclusion Criteria for both arms: * ability for independent community walking without aids; * sufficient cognitive, visual, and communication abilities for study participation. Exclusion Criteria for both arms: * musculoskeletal impairments; * cardiovascular health-related problems; * other health conditions that could interfere with the training. Additional Inclusion Criteria for post-stroke patients: * discharge from their regular rehabilitation; * at least 6 months after first unilateral cerebral stroke; * 18 to 70 years of age; * absence of additional neurologic conditions. Additional Inclusion Criteria for older adults: * age 65 to 75 years; * no known health-related problems significantly affecting balance and walking.