Make Better Choices (MBC): study design of a randomized controlled trial testing optimal technology-supported change in multiple diet and physical activity risk behaviors
AuthorsSpring, Bonnie J.
Schneider, Kristin L.
McFadden, H. G.
Kozak, Andrea T.
Moller, Arlen C.
Russell, Stephanie W.
UMass Chan AffiliationsDepartment of Medicine, Division of Preventive and Behavioral Medicine
Document TypeJournal Article
*Risk Reduction Behavior
Behavior and Behavior Mechanisms
Community Health and Preventive Medicine
Medicine and Health Sciences
MetadataShow full item record
AbstractBACKGROUND: Suboptimal diet and physical inactivity are prevalent, co-occurring chronic disease risk factors, yet little is known about how to maximize multiple risk behavior change. Make Better Choices, a randomized controlled trial, tests competing hypotheses about the optimal way to promote healthy change in four bundled risk behaviors: high saturated fat intake, low fruit and vegetable intake, low physical activity, and high sedentary leisure screen time. The study aim is to determine which combination of two behavior change goals--one dietary, one activity--yields greatest overall healthy lifestyle change. METHODS/DESIGN: Adults (n = 200) with poor quality diet and sedentary lifestyle will be recruited and screened for study eligibility. Participants will be trained to record their diet and activities onto a personal data assistant, and use it to complete two weeks of baseline. Those who continue to show all four risk behaviors after baseline recording will be randomized to one of four behavior change prescriptions: 1) increase fruits and vegetables and increase physical activity, 2) decrease saturated fat and increase physical activity, 3) increase fruits and vegetable and decrease saturated fat, or 4) decrease saturated fat and decrease sedentary activity. They will use decision support feedback on the personal digital assistant and receive counseling from a coach to alter their diet and activity during a 3-week prescription period when payment is contingent upon meeting behavior change goals. They will continue recording on an intermittent schedule during a 4.5-month maintenance period when payment is not contingent upon goal attainment. The primary outcome is overall healthy lifestyle change, aggregated across all four risk behaviors. DISCUSSION: The Make Better Choices trial tests a disseminable lifestyle intervention supported by handheld technology. Findings will fill a gap in knowledge about optimal goal prescription to facilitate simultaneous diet and activity change. Results will shed light on which goal prescription maximizes healthful lifestyle change. TRIAL REGISTRATION: Clinical Trials Gov. Identifier NCT00113672.
SourceBMC Public Health. 2010 Sep 29;10:586. Link to article on publisher's site
Permanent Link to this Itemhttp://hdl.handle.net/20.500.14038/39495
PubMed ID20920275; 20920275
Related ResourcesLink to Article in PubMed
© 2010 Spring et al; licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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