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.
Two convenience samples will be recruited to serve as self-controls, 20 post-stroke adults and 30 community-dwelling older adults. Participants post stroke will be recruited after discharge from their regular rehabilitation. Each subject will undergo individually customised perturbation-based training sessions with safety harnesses. The participants will be assessed at four time points: at baseline, after 3 weeks (at the beginning of training), at the end of 3-week training, and at 3-week follow-up. Safety, usability and efficacy of training will be evaluated using slip-, trip- and platform-movement-based perturbations induced by a Stewart platform and dual-belt treadmill, whereby the perturbation strength that can be reliably counteracted will be recorded, and using standardised clinical outcome measures.
Study Type
INTERVENTIONAL
Allocation
NON_RANDOMIZED
Purpose
PREVENTION
Masking
NONE
Enrollment
50
Each subject will undergo 9 perturbation-based training sessions with safety harnesses, and the device will deliver waist pulls during treadmill walking. Training sessions will be individually customised. Perturbation intensity will be progressively increased by a physiotherapist according to the subject's abilities. Training sessions will last approximately 30 minutes, 2-3 times per week.
University Rehabilitation Institute, Republic of Slovenia
Ljubljana, Slovenia
Perturbation strength
Perturbation strength that can be reliably counteracted - difference score (minimum 0N, no upper limit, stronger perturbation means better outcome, larger difference means better outcome)
Time frame: Difference between the two assessments - one day before the first and one day after the last training session
mini-BESTest
Mini Balance Evaluation Systems Test - difference score (score range 0-28, higher score means better outcome, larger difference means better outcome)
Time frame: Difference between the two assessments - one day before the first and one day after the last training session
ABC Scale
Activities-Specific Balance Confidence Scale - difference score (score range 0%-100%, higher score means better outcome, larger difference means better outcome)
Time frame: Difference between the two assessments - one day before the first and one day after the last training session
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