At a glance
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Graded Intensity Aerobic Exercise to Improve Cerebrovascular Function and Performance in Aged Veterans
In Brief
A clinical study evaluating Spin for Aging. Completed, enrolled 37 participants across 1 site.
Signals
Detailed Summary
This proposal will evaluate two brain health measures, cerebrovascular perfusion and cerebrovascular reactivity (CVR), before and after a proven, interval-based, aerobic exercise intervention in older Veterans. The hypothesis is that the 12-week aerobic exercise intervention (Spin) will increase perfusion and improve CVR in brain regions susceptible to age-related decline. This information will inform the impact of exercise on cerebrovascular health which is known to be negatively impacted in aging and implicated in the development of neurodegenerative disease. This information will also aid the investigators' continued efforts of clinical implementation of evidence-based exercise interventions in the local Atlanta VA and surround region.
Study Details
Timeline
Arms & Interventions
The intervention will take place three times a week for 12 weeks and will be led by a qualified instructor (an Exercise Physiologist with five years of experience conducting the intervention). The duration of each session will be increased by 1-2 minutes to a maximum time of 45 minutes per session based on the progression of the participants and the recommendation of the instructor. Because participants are initially sedentary and detrained, exercise intensity will begin at low levels (50% of maximal heart rate reserve, HRR) but will be increased by 5% every week (if deemed necessary by the instructor) to a maximum of 75% maximal HRR.
Participants in the control group will be equalized (frequency and duration) to the Spin group for contact and monitoring. As such they will report to the same facility and interact with the same experienced interventionist; however instead of progressive Spin exercise they will participate in sessions focused on balance and stretching. Similar to the aerobic intervention, these exercises will take place in a group setting and heart rate will be consistently monitored during each session to verify heart rate does not reach 50% HRR.
Interventions
The intervention will take place three times a week for 12 weeks and will be led by a qualified instructor (an Exercise Physiologist with five years of experience conducting the intervention). The duration of each session will be increased by 1-2 minutes to a maximum time of 45 minutes per session based on the progression of the participants and the recommendation of the instructor. Because participants are initially sedentary and detrained, exercise intensity will begin at low levels (50% of maximal heart rate reserve, HRR) but will be increased by 5% every week (if deemed necessary by the instructor) to a maximum of 75% maximal HRR.