The first purpose of this study is to determine how often people should practice motor skills to best improve the ability to use the affected arm and hand after stroke. The second purpose is to determine whether it is better to practice a lot of repetitions of a few tasks or a few repetitions of many tasks during motor rehabilitation for the arm and hand after stroke.
Intense skill practice with the affected arm after stroke has the potential to improve upper extremity (UE) function resulting from neuroplastic changes in the motor cortex. However, the necessary and sufficient parameters of this therapy in humans have not been fully investigated. Delineation of the most efficacious and efficient therapy for promoting UE recovery post-stroke is necessary before effective clinical implementation of this therapy. In this study, using parallel group design methodology, we will test the effect of 2 practice parameter (i.e. spacing of practice and number of repetitions per task practiced per session) modifications on UE function following skill practice. Forty subjects will complete multiple baseline testing and then be randomized, using random number table, to one of 4 groups: condensed functional task practice modeled after Constraint-Induced Movement Therapy (6 hours of practice/day, 5 days/week, 2 weeks), condensed functional task practice with a restricted number of tasks practiced, distributed, distributed functional task practice (Monday, Wednesday, Friday, 6 hours/session, 10 sessions), distributed functional task practice with a restricted number of tasks practiced. During therapy sessions, subjects will practice performing common activities with their paretic upper extremity. They will wear a mitt on their non-paretic upper extremity for up to 90% of their waking hours. Post-testing sessions will follow within one week of completing therapy with an additional follow-up testing session 3 months later.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
SINGLE
This functional task practice is modeled after Constraint-Induced Movement Therapy in which participants wear a mitt on the non-paretic arm for up to 90% of waking hours and then attend therapy for 3 hours a session Monday, Wednesday, and Friday in which they practice various functional tasks, such as tracing a stencil, placing toothbrushes in toothbrush holders, etc.
This functional task practice is modeled after Constraint-Induced Movement Therapy in which participants wear a mitt on the non-paretic arm for up to 90% of waking hours and then attend therapy for 3 hours a session Monday through Friday in which they practice various functional tasks, such as tracing a stencil, placing toothbrushes in toothbrush holders, etc.
Upper extremity subscale of the Fugl-Meyer Motor Assessment
Time frame: immediately after therapy ends
Wolf Motor Function Test
Time frame: Immediately after therapy ends
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