Examining High-Intensity Exercise on Cognitive and Vascular Outcomes in Older Adults Living With HIV-A Research Protocol: Design and Rationale From Two Harmonized Clinical Studies in the Deep South.
Raymond Jones, Michael J Hankes, Jasmine K Vickers and 12 others
PMID 41026763WHAT IT FOUND
This paper describes the design of two trials testing high-intensity versus continuous exercise in older adults with HIV.
No results are reported. It outlines methods for assessing cognitive function, arterial stiffness, and exercise adherence over 12 months.
Key findings
01The HEALTHCOG study plans to enroll 110 participants to test the effects of high-intensity interval training versus continuous moderate exercise on cognitive function and biological markers in older adults with HIV.
02The VASCOG pilot study plans to enroll 60 participants to assess the feasibility of the same exercise interventions on arterial stiffness and cognition in those with evidence of cognitive impairment.
03Participants undergo a 4-month supervised exercise intervention followed by a 3-month text-message coaching phase, with follow-up assessments extending to 12 months.
STILL TO COME
How it was doneWhat they foundWhat it means for PTsWhat it means for OTs
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What it does not show
This is a protocol paper, so it contains no empirical findings, effect sizes, or clinical outcomes. The VASCOG study is explicitly described as a pilot designed to generate estimates for a future trial, not to test efficacy. The interventions are complex, involving supervised gym sessions and text-message coaching, which may not be directly translatable to standard clinical practice without significant resources. The study population is specific: older adults with HIV who are virally suppressed but sedentary, limiting generalizability to those with unsuppressed viral loads or different activity levels.
Declared interests
The authors report funding from NIH grants (R01 for HEALTHCOG, K01 for VASCOG). No other conflicts of interest are declared in the provided text.
The easy way to misread this
Do not interpret the described interventions as proven effective. This paper reports the plan for testing high-intensity exercise in older adults with HIV, but no results are available. The VASCOG component is a pilot study designed only to assess feasibility and estimate variance for a future trial, not to determine if the exercise works.