This study will evaluate the main effects of daily vs. weekly feedback and contingent vs. non-contingent incentives for increasing walking behavior among overweight and obese adults.
Approximately 68% of adults are overweight or obese, which is associated with increased risk for health conditions, including cardiovascular disease, type 2 diabetes, and cancer. These individuals are more often sedentary than the general population, which compounds the risk for these same conditions. While the benefits of engaging in physical activity are well-established, few individuals are able to successfully increase activity to recommended levels. Existing intervention programs, often derived from theories such as social cognitive theory or related theories, have had limited success. Behavioral economics offers a promising alternative, suggesting that engagement in any behavior is based on the maximizing utility and happiness (i.e., weighing the cost and benefit of the behavior). Interventions based on this theory aim to increase the immediate benefit of engaging in physical activity, often using a financial incentive. This study will last for 8 weeks. All participants will have the use of a FitBit for ongoing self-monitoring and a personalized step-count goal designed to help increase daily steps. Participants will receive feedback on reaching their goals either daily or weekly.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
61
Incentives are provided for participation
Incentives are provided for attaining daily goals
Text message feedback is delivered weekly summarizing the past week's progress
Drexel University
Philadelphia, Pennsylvania, United States
Step counts
Average daily step counts
Time frame: Change from baseline to end of 6-week intervention
Step counts
Average daily step counts
Time frame: Change from end of intervention to end of 2-week follow-up
Step counts
Time frame: Daily change during 6-week intervention
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Text message feedback is delivered daily summarizing the current day's progress