Guided Episodic Future Thinking to Increase Physical Activity Adherence and Promote Healthy Brain Aging Among Mid-Life Adults: Phase II
University of Kansas Medical Center
Summary
The goal of this behavioral clinical trial is to learn how to increase physical activity in mid-life adults. Specifically, can guided imagery that includes creating mental pictures increase excitement about working out. Participants will be asked to complete testing at the beginning of the study, following 6-weeks of an in-person exercise program, and 6-weeks after finishing the exercise program. Testing will include an exercise test, MRI, questionnaires, computer tasks, and a blood draw.
Description
The proposed project will target regulation and reward systems using guided imagery to increase exercise adherence by increasing positive affect and the evaluation of future rewards among mid-life adults. The investigators will conduct a within subject design in 160 mid-life adults (45-65 years of age) and examine the impact of different components of guided imagery on exercise adherence, regulation systems indexed by delay discounting, positive affect related to exercise, and functional neuroimaging (i.e., connectivity between regulation and reward brain regions). Participants will be asked t…
Eligibility
- Age range
- 45–65 years
- Sex
- All
- Healthy volunteers
- Yes
Inclusion Criteria: * speak English * have access to reliable communication (a telephone or cell phone, computer, etc.) * normal or corrected to normal vision and hearing * ambulatory (without the use of assistive devices) * physically underactive * able to give informed consent * able to exercise continuously on the recumbent stepper exercise device for 4 minutes greater than or equal to 25 watts to demonstrate ability to perform exercise on stepper \& no aerobic exercise contraindications or other safety/physical concerns * able to communicate with investigators, follow 2-step command \& co…
Interventions
- BehavioralEpisodic Future Thinking
During the audio recorded guided imagery exercise participants will be asked to think in detail of a future (6 months to a year) where they have made healthy choices regarding physical activity and are physically active.
- BehavioralEpisodic Recent Thinking
During the audio recorded guided imagery exercise participants will be asked to think about a routine weekly activity.
- BehavioralPositive Affective Imagery
During the audio recorded guided imagery exercise participants will be asked to think in detail about the positive outcomes and sensations associated with an exercise bout.
- BehavioralNeutral Affective Imagery
During the audio recorded guided imagery exercise participants will be asked to think in detail about the physical sensations associated with an exercise bout.
- BehavioralHIIT Exercise Intervention
The high intensity interval training (HIIT) will be conducted 2 times per week for 6 weeks. The duration of each individual exercise session will last about 45 minutes. After the 5-minute warm-up at 30% peak workload, HIIT will consist of repeated 1-minute high intensity bursts ("on" interval) alternated with 1-minute interval recovery ("off" interval) for 25 minutes. The "on" interval will begin at 80% of peak watts (range: 75%-85%) followed by the "off" interval at 10% of peak watts. The session will end with up to 10 minute cool-down at 20% peak workload.
Location
- University of Kansas Medical CenterKansas City, Kansas