This is a multi-site, randomized, single-blind (researchers), active treatment concurrent control trial with individuals aged 50-80 living with HIV who experience fatigue and live a sedentary lifestyle. The overall goals of this proposal are to determine whether high-intensity interval training (HIIT) can overcome physical function impairments and increased fatigue (Aim 1) and impairments in mitochondrial bioenergetics of older people with HIV (PWH) to a greater extent than continuous moderate-intensity exercise (CME) (Aim 2). The investigators further seek to determine whether a biobehavioral coaching intervention following either HIIT or CME can promote long-term adherence to physical activity (Aim 3), a crucial component of the sustainability of the intervention. This study will enroll 100 participants in Aurora, Colorado and Seattle, Washington. Data collection will occur at each visit, with baseline data collected at the initial visit. A 3-month follow-up will be conducted over the phone from the date of the final visit. The initial enrollment goal of 100 was increased to 120 in 2023 to facilitate a larger number of participants with key secondary outcomes.
Age range
50 Years
Sex
ALL
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AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
Change in Physical Function (Part 1)
Timeframe: 0-16 weeks