This study aims to determine the effects of aerobic exercise as a primer to add-on virtual reality (VR)-based rehabilitation on balance, postural control and neuroplasticity (ability of brain to adapt in structure and function) in individuals with Parkinson's disease (PD). This study will utilize two groups - one group will receive the exercise and VR, while the other group will receive stretching exercise and VR over eight weeks. The study team will administer outcomes at baseline, post-intervention (8 weeks) and follow-up (6 weeks after post-assessment).
This study will enroll individuals diagnosed with Parkinson's disease who will be randomly assigned to 2 groups: 1) high intensity endurance exercise and virtual reality (experimental) or 2) stretching and virtual reality (control) for eight weeks (three sessions, thrice weekly). Outcomes will include balance and gait measures, blood-based biomarkers, neuroplasticity measures (assessed by transcranial magnetic stimulation), spinal reflex excitability (measured by H reflex) and quality of life.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
16
High intensity interval exercise on a recumbent stepper for 30 minutes, 3 days per week.
Stretches of face, neck, upper extremity, trunk and lower extremity muscles including whole body stretches for 30 minutes, 3 days per week.
VR games will involve games that challenge balance such as reaching different targets during activities such as sit to stand, dodging obstacles etc. Participants will play approximately 6 games for 30 minutes, 3 days a week.
UT Health San Antonio- Dept. of Physical Therapy
San Antonio, Texas, United States
Balance
Balance will be tested with the Mini Balance Evaluation Systems Test(miniBESTest), involving 14 different tasks including the timed up and go test to assess static and dynamic balance. Scores range from 0 to 28 with higher scores suggesting better balance.
Time frame: Baseline, post (8 week), follow-up (14 weeks)
Postural stability
Postural stability will be assessed by the Biodex Balance System.
Time frame: Baseline, post (8 week), follow-up (14 weeks)
Endurance
The 6-minute walk test will be used as a measure of cardiovascular endurance
Time frame: Baseline, post (8 week), follow-up (14 weeks)
Spatiotemporal gait parameters
Spatiotemporal measures of gait will be acquired with the GAITRite™ gait mat.
Time frame: Baseline, post (8 week), follow-up (14 weeks)
Brain derived neurotrophic growth factor (BDNF)
Blood sample will be obtained for measuring circulating levels of brain derived neurotrophic growth factor (BDNF).
Time frame: Baseline, post (8 week), follow-up (14 weeks)
Corticomotor excitability
Corticomotor excitability for the tibialis anterior motor representations will be measured with single and paired pulse transcranial magnetic stimulation (TMS).
Time frame: Baseline, post (8 week), follow-up (14 weeks)
Spinal reflex excitability
H reflexes will be recorded for quantifying spinal reflex excitability. The H wave amplitude will be expressed as a % of the M wave amplitude (H/M ratio).
Time frame: Baseline, post (8 week), follow-up (14 weeks)
Parkinson's Disease Questionnaire (PDQ-39)
The Parkinson's disease questionnaire (PDQ-39) is a self report questionnaire that will be used to evaluate quality of life. The questionnaire consists of 39 items with each item being rated on a 5-point scale. Lower scores suggest higher quality of life.
Time frame: Baseline, post (8 week), follow-up (14 weeks)
Parkinson's Disease Cognitive Rating Scale (PD-CRS)
The Parkinson's disease cognitive rating scale will be used to test frontal subcortical tasks such as attention, working memory, verbal fluency and posterior cortical tasks such as confrontation naming and copying a clock. Scores range from 0 - 134 and higher scores suggest better cognitive function.
Time frame: Baseline, post (8 week), follow-up (14 weeks)
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