This study will evaluate whether whole-body vibration applied over a 12-week period is effective in treating motor symptoms of Parkinson's disease.
Parkinson's disease (PD) is a progressive neurodegenerative disease resulting in the loss of dopaminergic neurons projecting from the substantia nigra pars compacta to the striatum. Whole-body vibration (WBV) is potentially beneficial in treating Parkinson's disease because it has been shown to elicit effects specific to both the brain and muscular system. Animal models of PD indicate that whole-body vibration can increase striatal dopamine levels, as well as the number of dopaminergic neurons in the substantia nigra. These findings were correlated with increased levels of brain-derived neurotrophic factor. In addition to the potentially neuroplastic effects, \>20 Hz WBV has been shown to improve muscular performance. Improved muscular performance is believed to be attributed to WBV induced neuromuscular effects rather than muscle hypertrophy, with the specific mechanism defined as the tonic vibration reflex.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Enrollment
60
vibration provided via physioacoustic method
simulated whole-body vibration
Sun Life Financial Movement Disorders Research & Rehabilitation Centre
Waterloo, Ontario, Canada
RECRUITINGUnified Parkinson's Disease Rating Scale (UPDRS) section III
clinician monitored motor evaluation
Time frame: change from baseline, 12 weeks, and 2 week washout
Gait Assessment
pressure sensitive carpet (GAITRite) measuring gait parameters (step length, step velocity, stride-to-stride variability, etc)
Time frame: change from baseline, 12 weeks, and 2 week washout
Timed Up & Go (TUG) Test
measuring time participants take to stand up from chair, walk towards an obstacle, turn around, walk back to chair, and sit back down again
Time frame: change from baseline, 12 weeks, and 2 week washout
Timed Grooved Pegboard Task
25 pegs with a key along one side must be rotated to properly be inserted into slot on board (measuring time-in and time-out)
Time frame: change from baseline, 12 weeks, and 2 week washout
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