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Changes in Psychological Determinants of Behavior Change after Individual versus Group-Based Lifestyle-integrated Fall Prevention : Results from the LiFE-is-LiFE Trial

Changes in Psychological Determinants of Behavior Change after Individual versus Group-Based Lifestyle-integrated Fall Prevention : Results from the LiFE-is-LiFE Trial

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LABUDEK, Sarah, Lena FLEIG, Carl-Philipp JANSEN, Franziska KRAMER-GMEINER, Corinna NERZ, Lindy CLEMSON, Jochen KLENK, Clemens BECKER, Michael SCHWENK, 2022. Changes in Psychological Determinants of Behavior Change after Individual versus Group-Based Lifestyle-integrated Fall Prevention : Results from the LiFE-is-LiFE Trial. In: Gerontology. Karger. ISSN 0304-324X. eISSN 1423-0003. Available under: doi: 10.1159/000524701

@article{Labudek2022-06-10Chang-57971, title={Changes in Psychological Determinants of Behavior Change after Individual versus Group-Based Lifestyle-integrated Fall Prevention : Results from the LiFE-is-LiFE Trial}, year={2022}, doi={10.1159/000524701}, issn={0304-324X}, journal={Gerontology}, author={Labudek, Sarah and Fleig, Lena and Jansen, Carl-Philipp and Kramer-Gmeiner, Franziska and Nerz, Corinna and Clemson, Lindy and Klenk, Jochen and Becker, Clemens and Schwenk, Michael} }

Nerz, Corinna Schwenk, Michael Becker, Clemens Clemson, Lindy Klenk, Jochen Fleig, Lena Jansen, Carl-Philipp Nerz, Corinna 2022-06-10 2022-07-08T08:29:18Z Schwenk, Michael Kramer-Gmeiner, Franziska 2022-07-08T08:29:18Z Fleig, Lena eng Jansen, Carl-Philipp Objective: The Lifestyle-integrated Functional Exercise (LiFE) intervention has been shown to promote physical activity in fall-prone older adults. However, the underlying mechanisms of how LiFE functions remain unclear. This study compares the effects of the individual and group-based LiFE formats on psychological determinants of behavior change derived from the health action process approach, habit formation theory, and self-determination theory.<br />Methods: Secondary analysis on basis of the randomized, non-inferiority LiFE-is-LiFE trial were performed. Questionnaire data on psychological determinants were obtained from older adults (M = 78.8 years, range 70–95) who took part in either the individual (n = 156) or the group-based (n = 153) LiFE intervention. Measurement points varied from three to six times, and from baseline (T1) up to a 12-month follow-up (T6). A generalized linear mixed model was specified for each determinant.<br />Results: Both LiFE and gLiFE participants reported lower levels of motivational determinants at T6. LiFE participants showed significantly higher values of action planning and coping planning at T6. Participants in both formats showed increased levels of action control at T6, whereas participants’ habit strength decreased post-intervention but then stabilized over time. LiFE participants showed higher levels of autonomy, competence, and relatedness throughout the study, but levels of intrinsic motivation did not differ between formats and from T1 to T6.<br />Conclusion: In both formats, but especially in the individual LiFE, the behavior change techniques used affected volitional rather than motivational or general determinants of behavior change. Habit strength as an important indicator of the sustainability of the LiFE exercises stabilized over time, indicating that participants, at least partly, sustained their formed habits long-term. Labudek, Sarah Labudek, Sarah Clemson, Lindy Klenk, Jochen Changes in Psychological Determinants of Behavior Change after Individual versus Group-Based Lifestyle-integrated Fall Prevention : Results from the LiFE-is-LiFE Trial Kramer-Gmeiner, Franziska Becker, Clemens

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