NCT02250950

An Examination of the Efficacy of a Self-Determination Theory and Motivational Interviewing Exercise Intervention

Decreasing Disparities in Physical Activity: An Intervention Based on Self-Determination Theory and Motivational Interviewing

• Status: Completed
• Phase: Phase 2 / Phase 3
• Study type: Interventional
• Enrollment: 57 (actual)
• Sponsor: Syracuse University · Academic / Other
• Sex: All
• Age: 18 Years
• Healthy volunteers: Accepted

Summary

The current study involves conducting an intervention based on self-determination theory (SDT) and motivational interviewing (MI) to promote physical activity in a racially-diverse sample. It is expected that this intervention will successfully increase physical activity in participants.

Detailed description

The mental and physical benefits of physical activity are well-established. However, there is a racial disparity in exercise, such that minorities are much less likely to engage in physical activity than are white individuals. Research suggests that a lack of motivation may be an important barrier to physical activity for racial minorities. Therefore, interventions which increase participants' motivation may be especially useful in promoting physical activity within these groups. A previous meta-analysis has found that physical activity interventions based on self-determination theory (SDT) and motivational interviewing (MI) are especially effective in increasing white individuals' physical activity (Miller \& Gramzow, under review). However, it remains unclear the extent to which these results apply to minority populations. The current study involves conducting an intervention based on SDT and MI to promote physical activity in a racially-diverse sample. It is expected that this intervention will successfully increase physical activity in participants. Specifically, it is expected that there will be a greater relative increase in physical activity in minority individuals than white individuals within the intervention group because it is expected that their level of activity will be lower at baseline.

Conditions

• Exercise Promotion

Interventions

Type	Name	Description
BEHAVIORAL	MI and SDT Exercise Group	The intervention group will participate in a group exercise class that will be held once a week for an hour. This class will be taught by an instructor trained in MI and SDT. This individual will lead group discussions and will have the participants exercise together.
BEHAVIORAL	Non-MI and SDT Exercise Group	This group will participate in a group exercise class that will be held once a week for an hour. This class will be taught by an instructor who was not trained in MI and SDT. This individual will lead a regular exercise class.

Timeline

• Start date: 2014-06-01
• Primary completion: 2015-02-01
• Completion: 2015-02-01
• First posted: 2014-09-26
• Last updated: 2015-05-19

Locations

1 site across 1 country: United States