PREVIEW Study - Influence of a behaviour modification intervention (PREMIT) on intention, self-efficacy and outcome expectancies during an early phase of a lifestyle intervention

Show simple item record Huttunen-Lenz, M en Hansen, S en Christensen, P en Sandø-Pedersen, F en Meinert Larsen, T en Westerterp-Plantenga, M en Adams, T en Macdonald, I en Taylor, M en Martinez, A en Handjiev, S en Handjieva-Darlenska, T en Poppitt, Sally en Silvestre, MP en Pietiläinen, K en Navas-Carretero, S en Brodie, S en Brand-Miller, J en Feskens, E en Beredsens, A en Fogelholm, M en Raben, A en Schlicht, W en 2019-03-01T03:10:13Z en 2018 en
dc.identifier.citation Psychology Research and Behavior Management 11:383-394 2018 en
dc.identifier.issn 1179-1578 en
dc.identifier.uri en
dc.description.abstract Purpose: Onset of type 2 diabetes (T2D) is often gradual and preceded by impaired glucose homeostasis. Lifestyle interventions including weight loss and physical activity may reduce the risk of developing T2D, but adherence to a lifestyle change is challenging. As part of an international T2D prevention trial (PREVIEW), a behavior change intervention supported participants in achieving a healthier diet and physically active lifestyle. Here, our aim was to explore the influence of this behavioral program (PREMIT) on social-cognitive variables during an 8-week weight loss phase. Methods: PREVIEW consisted of an initial weight loss, Phase I, followed by a weight-­maintenance, Phase II, for those achieving the 8-week weight loss target of ≥ 8% from initial bodyweight. Overweight and obese (BMI ≥25 kg/m2) individuals aged 25 to 70 years with confirmed pre-diabetes were enrolled. Uni- and multivariate statistical methods were deployed to explore differences in intentions, self-efficacy, and outcome expectancies between those who achieved the target weight loss (“achievers”) and those who did not (“non-achievers”). Results: At the beginning of Phase I, no significant differences in intentions, self-efficacy and outcome expectancies between “achievers” (1,857) and “non-achievers” (163) were found. “Non-achievers” tended to be younger, live with child/ren, and attended the PREMIT sessions less frequently. At the end of Phase I, “achievers” reported higher intentions (healthy eating χ2(1)=2.57; P <0.008, exercising χ2(1)=0.66; P <0.008), self-efficacy (F(2; 1970)=10.27, P <0.005), and were more positive about the expected outcomes (F(4; 1968)=11.22, P <0.005). Conclusion: Although statistically significant, effect sizes observed between the two groups were small. Behavior change, however, is multi-determined. Over a period of time, even small differences may make a cumulative effect. Being successful in behavior change requires that the “new” behavior is implemented time after time until it becomes a habit. Therefore, having even slightly higher self-efficacy, positive outcome expectancies and intentions may over time result in considerably improved chances to achieve long-term lifestyle changes. en
dc.publisher Dove Medical Press en
dc.relation.ispartofseries Psychology Research and Behavior Management en
dc.rights Items in ResearchSpace are protected by copyright, with all rights reserved, unless otherwise indicated. Previously published items are made available in accordance with the copyright policy of the publisher. en
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dc.title PREVIEW Study - Influence of a behaviour modification intervention (PREMIT) on intention, self-efficacy and outcome expectancies during an early phase of a lifestyle intervention en
dc.type Journal Article en
pubs.begin-page 383 en
pubs.volume 11 en
dc.rights.holder Copyright: The authors en
pubs.end-page 394 en
dc.rights.accessrights en
pubs.subtype Article en
pubs.elements-id 753060 en Science en Biological Sciences en
pubs.record-created-at-source-date 2018-09-13 en
pubs.dimensions-id 30254498 en

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