NCT06088355 · VA Office of Research and Development
Moderate Versus High Volume Light-Moderate Intensity Exercise for People With Moderate Parkinson's Disease
(HI-LITE)
What this study is about
Veterans with mid to later stage Parkinson's disease (PD) may not be able to work out as hard as they need to, to prevent brain cell loss. Maybe they could work out longer and more frequently to make up for this during their good times and good weeks and then rest during the bad weeks.
View original scientific description
Veterans with mid to later stage Parkinson's disease (PD) may not be able to work out as hard as they need to, to prevent brain cell loss. Maybe they could work out longer and more frequently to make up for this during their good times and good weeks and then rest during the bad weeks. The investigators will compare how effective working out a lot one week per month with a break of three weeks is to continuously exercising weekly with no breaks in people with mid stage PD. The investigators will look at how fast participants walk per minute, whether they become more physically active, the biochemicals in their blood, and at how stiff their blood vessels are before and after the exercise.
Interventions
BEHAVIORAL
HV-PDAE: High Volume Partnered Dance Aerobic Exercise
HV-PDAE classes will meet 5 times a week for 90 minute sessions for 3 weeks at onset of trial and then every 4 weeks for a year. All participants will receive 112.5h of training. PDAE was adapted for older adults with balance impairments; modifications were made to the frame and steps of Argentine tango. People with PD partner an individual without PD, e.g., staff, caregiver, friend, or university student. The instructor, staff lead and assistants monitor participants for safety. Class sizes will consist of 6 or fewer pairs of participants with PD and partners. Participants with PD will dance with new partners (individuals without PD) every 15-20 minutes. Participants will learn new steps in each class. The class format includes practicing steps, warm-up, partnering and rhythmic exercises, learning new steps, combining old and new steps, cool down. PDAE classes follow a syllabus with new steps, rhythms and embellishments included in each class.
BEHAVIORAL
MV-PDAE: Moderate Volume Partnered Dance Aerobic Exercise
MV-PDAE: MV classes will meet biweekly for 52 weeks for 65-minute sessions. All participants will receive 112.5h of training. . PDAE was adapted for older adults with balance impairments; modifications were made to the frame and steps of Argentine tango. People with PD partner an individual without PD, e.g., staff, caregiver, friend, or university student. The instructor, staff lead and assistants monitor participants for safety. Class sizes will consist of 6 or fewer pairs of participants with PD and partners. Participants with PD will dance with new partners (individuals without PD) every 15-20 minutes. Participants will learn new steps in each class. The class format includes practicing steps, warm-up, partnering and rhythmic exercises, learning new steps, combining old and new steps, cool down. PDAE classes follow a syllabus with new steps, rhythms and embellishments included in each class.
BEHAVIORAL
MV-WALK: Moderate Volume Walking
MV-WALK (65-minute sessions): WALK will control for the walking that participants in PDAE do and will also take place in groups to control social effects of intervention. Walking for
Primary outcome measures
Gait cadence
Time frame: 52 weeks
Gait Cadence is the number of human steps taken per minute while walking.
Physical activity scale for the elderly (PASE)
Time frame: 52 weeks
This questionnaire is very comprehensive and assesses an older adults' activity level within the previous week by totaling their involvement in a variety of physical activities. The minimum score is 0 and the maximum score is 400. Higher scores indicate better outcomes.
vascular function: Pulse wave velocity and Aortic index
Time frame: 52 weeks
Pulse wave velocity and augmentation aortic index are valid and reliable measures of vascular function. Pulse-wave velocity (PWV) is a measurement of arterial stiffness and is an independent predictor of cardiovascular risk. It can be assessed simply and noninvasively by measuring the carotid and femoral pulse pressures and the time delay between the two or by other methods relying on pulse-wave analysis.
Who can participate
This study lists these criteria on ClinicalTrials.gov. A study coordinator reviews eligibility during screening — this page does not determine whether you qualify.
Inclusion criteria
- Participants recruited for this study will be age 40 and older with diagnosis of "definite" PD based upon established criteria (Hughes, Daniel et al. 1992) and determined by a board-certified neurologist with specialty training in movement disorders. Individuals must have presented with asymmetric symptoms that included at least 3 of the cardinal signs of PD (rigidity, bradykinesia, tremor, postural instability), and must show clear symptomatic benefit (e.g., alleviated rigidity, bradykinesia, and tremor) from antiparkinsonian medications, e.g., levodopa (Kempster, Williams et al. 2007). They should be in H\&Y stages 2, 2.5 and 3, and receive a Montreal Cognitive Assessment (MoCA) score \>17 (Litvan, Goldman et al. 2012). Age 40 is the upper limit for young onset PD. We will not recruit individuals with a history of significant alcohol or drug use, nor habitual users of antipsychotics. We will observe patients while OFF their antiparkinsonian medications to avoid dyskinesia, and medication fluctuations that may impact neurophysiology and motor examination. We have successfully observed patients while OFF in several previous trials. The following inclusion criteria apply:
- MoCA score \>17
- Able to walk with or without an assistive device at least 10 feet
- Best corrected/aided acuity better than 20/70 in the better eye
- Willingness to be randomized to a treatment group
- H\&Y stages 2, 2.5 and 3
- Show clear symptomatic benefit (e.g., alleviated rigidity, bradykinesia, and tremor) from antiparkinsonian medications
- Fluent in English to be able to comprehend and participate; older than 40 years; Diagnosis of definite Parkinson's disease by board certified Movement Disorders Neurologist, using standardized UK Brain Bank criteria
Exclusion criteria
- Participants recruited for this study will be age 40 and older with diagnosis of "definite" PD based upon established criteria (Hughes, Daniel et al. 1992) and determined by a board-certified neurologist with specialty training in movement disorders. Individuals must have presented with asymmetric symptoms that included at least 3 of the cardinal signs of PD (rigidity, bradykinesia, tremor, postural instability), and must show clear symptomatic benefit (e.g., alleviated rigidity, bradykinesia, and tremor) from antiparkinsonian medications, e.g., levodopa (Kempster, Williams et al. 2007). They should be in H\&Y stages 2, 2.5 and 3, and receive a Montreal Cognitive Assessment (MoCA) score \>17 (Litvan, Goldman et al. 2012). Age 40 is the upper limit for young onset PD. We will not recruit individuals with a history of significant alcohol or drug use, nor habitual users of antipsychotics. The following exclusion criteria apply:
- Untreated Major Depression and major psychiatric illness
- History of stroke, or traumatic brain injury
- Pure-tone threshold average sensitivity at 0.5, 1.0,and 2.0 kHz exceeds 40 dB
- Alcohol abuse and/or use of antipsychotics
- Planning to leave the area for \>1 month during the study time period.
- Taking moderate to high doses of beta-blockers with a resting heart rate below 60 beats/min given that exercise intensity is measured through target heart rate.
- Severe cardiac disease, including NYHA Class III or IV congestive heart failure, clinically significant aortic stenosis, history of cardiac arrest, use of a cardiac defibrillator, or uncontrolled angina
- Other significant co-morbid disease that would impair ability to participate in the exercise-based intervention, e.g. renal failure on hemodialysis, excessive alcohol use (\>14 drinks per wk)
Where
- Decatur, Georgia
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Frequently asked questions
What is a clinical trial?
A clinical trial is a research study that tests new medical treatments, drugs, devices, or procedures to determine their safety and effectiveness. Trials are carefully designed and monitored to protect participants while advancing medical knowledge.
Is it safe to participate?
Clinical trials follow strict safety guidelines and ethical standards. Trials must be reviewed and approved, and participants are closely monitored by medical professionals throughout the study. You can withdraw at any time if you choose.
Will I be compensated?
Many clinical trials offer compensation for your time, travel expenses, and inconvenience. The specific compensation varies by study and will be discussed during the screening process. All study-related medical care is typically provided at no cost to participants.
Will I receive a placebo instead of treatment?
When effective treatment exists, participants typically receive either the standard treatment plus the study intervention, or the standard treatment plus placebo. You would not be denied effective care. Placebos are primarily used when no proven treatment is available, or in addition to standard care. Your trial consent form will clearly explain what treatments you may receive.
Can I leave a trial if I change my mind?
Absolutely. Participation in clinical trials is completely voluntary. You have the right to withdraw from the study at any time, for any reason, without penalty or loss of benefits to which you are otherwise entitled.
How long does a clinical trial last?
Trial duration varies widely depending on the study design and purpose. Some trials last just a few weeks, while others may continue for months or years. The study coordinator will provide specific timeline information during your screening call.
Data: ClinicalTrials.gov · synced Feb 5, 2026 · Source of record for eligibility and locations