Adherence is a multi-dimensional construct in the POUNDS LOST trial
Identifieur interne : 003A11 ( Main/Exploration ); précédent : 003A10; suivant : 003A12Adherence is a multi-dimensional construct in the POUNDS LOST trial
Auteurs : Donald A. Williamson [États-Unis] ; Stephen D. Anton [États-Unis] ; Hongmei Han [États-Unis] ; Catherine M. Champagne [États-Unis] ; Ray Allen [États-Unis] ; Eric Leblanc [États-Unis] ; Donna H. Ryan [États-Unis] ; Katherine Mcmanus [États-Unis] ; Nancy Laranjo [États-Unis] ; Vincent J. Carey [États-Unis] ; Catherine M. Loria [États-Unis] ; George A. Bray [États-Unis] ; Frank M. Sacks [États-Unis]Source :
- Journal of Behavioral Medicine [ 0160-7715 ] ; 2010-02-01.
English descriptors
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Abstract
Abstract: Research on the conceptualization of adherence to treatment has not addressed a key question: Is adherence best defined as being a uni-dimensional or multi-dimensional behavioral construct? The primary aim of this study was to test which of these conceptual models best described adherence to a weight management program. This ancillary study was conducted as a part of the POUNDS LOST trial that tested the efficacy of four dietary macronutrient compositions for promoting weight loss. A sample of 811 overweight/obese adults was recruited across two clinical sites, and each participant was randomly assigned to one of four macronutrient prescriptions: (1) Low fat (20% of energy), average protein (15% of energy); (2) High fat (40%), average protein (15%); (3) Low fat (20%), high protein (25%); (4) High fat (40%), high protein (25%). Throughout the first 6 months of the study, a computer tracking system collected data on eight indicators of adherence. Computer tracking data from the initial 6 months of the intervention were analyzed using exploratory and confirmatory analyses. Two factors (accounting for 66% of the variance) were identified and confirmed: (1) behavioral adherence and (2) dietary adherence. Behavioral adherence did not differ across the four interventions, but prescription of a high fat diet (vs. a low fat diet) was found to be associated with higher levels of dietary adherence. The findings of this study indicated that adherence to a weight management program was best conceptualized as being multi-dimensional, with two dimensions: behavioral and dietary adherence.
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DOI: 10.1007/s10865-009-9230-7
Affiliations:
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The primary aim of this study was to test which of these conceptual models best described adherence to a weight management program. This ancillary study was conducted as a part of the POUNDS LOST trial that tested the efficacy of four dietary macronutrient compositions for promoting weight loss. A sample of 811 overweight/obese adults was recruited across two clinical sites, and each participant was randomly assigned to one of four macronutrient prescriptions: (1) Low fat (20% of energy), average protein (15% of energy); (2) High fat (40%), average protein (15%); (3) Low fat (20%), high protein (25%); (4) High fat (40%), high protein (25%). Throughout the first 6 months of the study, a computer tracking system collected data on eight indicators of adherence. Computer tracking data from the initial 6 months of the intervention were analyzed using exploratory and confirmatory analyses. Two factors (accounting for 66% of the variance) were identified and confirmed: (1) behavioral adherence and (2) dietary adherence. Behavioral adherence did not differ across the four interventions, but prescription of a high fat diet (vs. a low fat diet) was found to be associated with higher levels of dietary adherence. The findings of this study indicated that adherence to a weight management program was best conceptualized as being multi-dimensional, with two dimensions: behavioral and dietary adherence.</div></front></TEI><affiliations><list><country><li>États-Unis</li></country><region><li>Louisiane</li><li>Maryland</li><li>Massachusetts</li></region></list><tree><country name="États-Unis"><region name="Louisiane"><name sortKey="Williamson, Donald A" sort="Williamson, Donald A" uniqKey="Williamson D" first="Donald A." last="Williamson">Donald A. Williamson</name></region><name sortKey="Allen, Ray" sort="Allen, Ray" uniqKey="Allen R" first="Ray" last="Allen">Ray Allen</name><name sortKey="Anton, Stephen D" sort="Anton, Stephen D" uniqKey="Anton S" first="Stephen D." last="Anton">Stephen D. Anton</name><name sortKey="Bray, George A" sort="Bray, George A" uniqKey="Bray G" first="George A." last="Bray">George A. Bray</name><name sortKey="Carey, Vincent J" sort="Carey, Vincent J" uniqKey="Carey V" first="Vincent J." last="Carey">Vincent J. Carey</name><name sortKey="Champagne, Catherine M" sort="Champagne, Catherine M" uniqKey="Champagne C" first="Catherine M." last="Champagne">Catherine M. Champagne</name><name sortKey="Han, Hongmei" sort="Han, Hongmei" uniqKey="Han H" first="Hongmei" last="Han">Hongmei Han</name><name sortKey="Laranjo, Nancy" sort="Laranjo, Nancy" uniqKey="Laranjo N" first="Nancy" last="Laranjo">Nancy Laranjo</name><name sortKey="Leblanc, Eric" sort="Leblanc, Eric" uniqKey="Leblanc E" first="Eric" last="Leblanc">Eric Leblanc</name><name sortKey="Loria, Catherine M" sort="Loria, Catherine M" uniqKey="Loria C" first="Catherine M." last="Loria">Catherine M. Loria</name><name sortKey="Mcmanus, Katherine" sort="Mcmanus, Katherine" uniqKey="Mcmanus K" first="Katherine" last="Mcmanus">Katherine Mcmanus</name><name sortKey="Ryan, Donna H" sort="Ryan, Donna H" uniqKey="Ryan D" first="Donna H." last="Ryan">Donna H. Ryan</name><name sortKey="Sacks, Frank M" sort="Sacks, Frank M" uniqKey="Sacks F" first="Frank M." last="Sacks">Frank M. Sacks</name><name sortKey="Williamson, Donald A" sort="Williamson, Donald A" uniqKey="Williamson D" first="Donald A." last="Williamson">Donald A. Williamson</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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