Power of Choice on Exercise Adherence and Cardiovascular Health
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- STATUS
- Recruiting
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- days left to enroll
- 40
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- participants needed
- 201
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- sponsor
- University of British Columbia
Summary
People with prediabetes have blood sugar levels that are higher than normal and is linked to the development of cardiovascular disease (CVD). Improving cardiorespiratory fitness (CRF) in adults with prediabetes is important for preventing CVD. The primary aim of this study is to improve the CRF among adults with prediabetes by improving exercise adherence through providing choice to self-select their own exercise type and intensity.
Description
This trial has been informed by self-determination theory. The theory states that individuals who choose their own activities report increased internal reasons/motivations, as opposed to external reasons (to satisfy another person's suggestions) for the behavior. Internal motivation for performing a behavior are linked with increased pleasure with the behavior and improved adherence.
The primary outcome is improvement in CRF from baseline to 12-months post-intervention. The secondary outcomes are changes in exercise adherence from baseline to 6- and 12-month post-intervention. Tertiary outcomes include self-reported changes in in-task affective responses during the exercise intervention, as well as baseline to 6- and 12-month post-intervention changes in exercise-related motivation and enjoyment in free-living, unsupervised exercise. A total of 201 low active adults (18 to 70 years) with prediabetes will be randomized to a 3-week supervised intervention involving behavioral counseling and one of three exercise conditions, either: 1) imposed high-intensity interval training (Imposed-HIIT; n=67/group); 2) imposed moderate-intensity continuous training (Imposed-MICT), or 3) choice between MICT or HIIT (CHOICE). It is hypothesized that the CHOICE condition will have higher improvements in CRF (primary outcome) from baseline to 12-month post-intervention, and exercise adherence (secondary outcome) from baseline to 6- and 12-months post-intervention, compared to individuals in the IM-MICT or IM-HIIT. For the tertiary outcomes, the CHOICE condition will show greater in-task affective responses during the exercise intervention. We further except greater changes in exercise-related motivation and enjoyment for the CHOICE condition from baseline to 6- and 12-months post-intervention compared to IM-HIIT and IM-MICT conditions. This proposed trial would provide theory- and evidence-based information whether providing choice for engaging in HIIT or MICT is associated with improvements in CRF, exercise adherence, and exercise enjoyment.
Details
| Condition | Cardiorespiratory Fitness |
|---|---|
| Treatment | Choice, Imposed-MICT, Imposed-HIIT |
| Clinical Study Identifier | NCT03576924 |
| Sponsor | University of British Columbia |
| Last Modified on | 16 February 2022 |
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