Clinical trial NCT03134040: Small Monetary Incentives to Promote Exercise (Exercise4Good; EX4G)
Official title: Using Behavioral Economics to Promote Exercise Among Overweight Inactive Adults
Study type: INTERVENTIONAL
Overall status: COMPLETED
Phase: NA
Conditions: Obesity
Physical Activity
Keywords: Incentives
Motivation
Lead sponsor: Brown University
Sponsor class: OTHER
First posted: 2017-04-28
Enrollment: 82
Sex: ALL
Minimum age (years): 18
Maximum age (years): 99
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: yes
Allocation: RANDOMIZED
Intervention model: PARALLEL
Primary purpose: PREVENTION

Brief summary: This study is for physically inactive adults with an active membership at a Greater Providence Young Men's Christian Association (YMCA).

Participants will receive weekly feedback on their attendance at the YMCA, and will be enrolled in the study for 1 year.

Participants will be assigned to one of three conditions, to either receive weekly: (i) monetary incentives, (ii) donations to a charity of their choice, or (iii) feedback only.

In order to continue to receive incentives, participants must maintain an active membership at the YMCA.

Detailed description: The investigators propose to conduct a pilot study to test feasibility and proof-of-concept for two incentive programs to promote exercise among low-active overweight and obese adults. To address weaknesses in the literature, the programs will be (a) conducted in a community setting by the Greater Providence YMCAs and (b) financially sustainable, such that they do not require removal of the incentives after a specified period of time. In both incentive programs, participants will pay the standard monthly YMCA membership fee. In the Rebate incentive program, participants will have the opportunity to earn a small monetary incentive to exercise for each day that they attend the YMCA (verified by objective swipe-card data), with a maximum of 5 exercise sessions being incentivized per week. In the Donation incentive program, participants will have the opportunity to earn a small monetary incentive to exercise in the form of donations (using the same incentive schedule) to a registered local charity of the participant's choice. Thus, the proposed study will compare three experimental conditions: (a) Rebate incentives (n=25); (b) Donation incentives (n=25); and (c) Control (i.e., no incentives) (n=25). The Primary Aims are to test (1) feasibility of the two incentive programs, (2) feasibility of the research methods to evaluate the preliminary efficacy of the two incentive programs, and (3) proof-of-concept for the two incentive programs (relative to control), through comparison of average number of sessions/week with incentives over one year. Secondary outcomes will be self-reported minutes per week of exercise over one year. The proposed research will provide a preliminary investigation into two community-based, financially sustainable incentive programs to promote exercise for adults who are at increased risk for cancer. Positive findings from such a trial would provide a fast-track for a community-based ready-to-implement exercise promotion intervention. Additionally, such findings would have significant implications for the use of financially sustainable incentive programs for exercise through other community organizations (e.g., privately-owned health clubs), healthcare organizations, or employers (e.g., employer fitness facilities), as well as providing a model for incentive programs for other health-related behaviors (e.g., smoking cessation, weight loss).

Eligibility criteria: Inclusion Criteria:

* Inactive adults with an active YMCA membership
* Currently physically able to exercise

Exclusion Criteria:

* Do not plan to reside in the geographical region for the next 12 months
* Family member currently participating in the study
* Currently engaging in \>150 mins of moderate/vigorous physical activity per week
* Attended the YMCA more than 4 times per month in the last 6 months

Primary outcomes:
measure: Exercise attendance
timeFrame: 1 year
Secondary outcomes:
Other outcomes:
Locations:
city: Providence
country: United States
facility: Public Health Building @ 121 South Main St
state: Rhode Island
Study officials:
affiliation: Brown University
name: David M Williams, PhD
role: PRINCIPAL_INVESTIGATOR
affiliation: Brown University
name: Omar Galarraga, PhD
role: PRINCIPAL_INVESTIGATOR
References:
citation: Galarraga O, Bohlen LC, Dunsiger SI, Lee HH, Emerson JA, Boyle HK, Strohacker K, Williams DM. Small sustainable monetary donation-based incentives to promote physical activity: A randomized controlled trial. Health Psychol. 2020 Apr;39(4):265-268. doi: 10.1037/hea0000818. Epub 2019 Nov 21.