Efficacy of three eight-week lifestyle interventions on weight loss and cardiovascular disease risk factors in obese adults

dc.contributor.advisor Gregory J. Welk
dc.contributor.author Walsh, Sarah
dc.contributor.department Department of Kinesiology
dc.date 2018-08-11T06:49:50.000
dc.date.accessioned 2020-06-30T02:26:26Z
dc.date.available 2020-06-30T02:26:26Z
dc.date.copyright Sat Jan 01 00:00:00 UTC 2011
dc.date.embargo 2013-06-05
dc.date.issued 2011-01-01
dc.description.abstract <p>There is little consensus on the most effective approach to promote weight loss and weight maintenance. Guided weight loss programs utilizing motivational interviewing (MI) have shown positive results for weight loss but they can be time consuming and expensive. New self-monitoring devices such as the SenseWear Pro mini-fly Armband (SWA) may provide alternative approaches for facilitated weight loss. The primary purpose of this study was to determine the relative effectiveness of a guided weight loss program (Bon), the SWA monitor with associated weight management system (SWA), or a combination of both strategies (Bon + SWA) on weight loss and clinical risk factor change.</p> <p>Seventy-eight obese adults (31 male and 47 female) were enrolled in the study and randomized to one of the three conditions. The 8-week intervention consisted of either weekly health coach meetings in conjunction with a behavior change curriculum (BonSanty), utilization of the SWA monitor with minimal health coaching, or a combination of weekly meetings and SWA. Changes in weight and clinical risk factors (blood pressure, fasting glucose, total cholesterol, HDL, LDL, and triglyceride concentrations) were assessed using multivariate ANOVAs. Results indicate that there was a significant weight reduction seen in all three conditions (-4.21 + 3.08 kg; p< 0.0001); however, there was no significant difference across conditions. There were general tendencies for larger effects in the group that received the combination of programs. Secondary analyses revealed that change in risk factors were proportional to the degree of weight loss (r=0.40); however, there was evidence that some risk factor change may occur independently of weight loss.</p> <p>The results suggest that a self-monitoring device may be as beneficial as a guided intervention to facilitate weight loss and behavior change. Positive changes in risk factors can occur without a decrease in weight, but these changes are associated with the magnitude of weight reduction. Follow-up analyses of this sample will provide insights about the impact of these intervention approaches on maintenance of effects.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/etd/10141/
dc.identifier.articleid 1110
dc.identifier.contextkey 2736207
dc.identifier.doi https://doi.org/10.31274/etd-180810-2236
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath etd/10141
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/24373
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/etd/10141/Walsh_iastate_0097M_12118.pdf|||Fri Jan 14 18:14:44 UTC 2022
dc.subject.disciplines Kinesiology
dc.subject.keywords Energy Expenditure Monitor
dc.subject.keywords Health Promotion
dc.subject.keywords Motivational Interviewing
dc.subject.keywords Self-Monitoring
dc.subject.keywords SenseWear Armband
dc.subject.keywords Weight Loss Intervention
dc.title Efficacy of three eight-week lifestyle interventions on weight loss and cardiovascular disease risk factors in obese adults
dc.type thesis en_US
dc.type.genre thesis en_US
dspace.entity.type Publication
relation.isOrgUnitOfPublication f7b0f2ca-8e43-4084-8a10-75f62e5199dd
thesis.degree.level thesis
thesis.degree.name Master of Science
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