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Determinants of Physical Activity in Older Adults: Integrating Self-Concordance into the Theory of Planned Behavior

Based on the theory of planned behavior (TPB), augmented by the concept of self-concordance (derived from self-determination theory, SDT), we conducted a study to identify the key determinants of physical activity in older adults. We applied structural equation modeling of telephone survey data from...

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Detalles Bibliográficos
Autores principales: Stehr, Paula, Rossmann, Constanze, Kremer, Tabea, Geppert, Johanna
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8199322/
https://www.ncbi.nlm.nih.gov/pubmed/34072012
http://dx.doi.org/10.3390/ijerph18115759
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author Stehr, Paula
Rossmann, Constanze
Kremer, Tabea
Geppert, Johanna
author_facet Stehr, Paula
Rossmann, Constanze
Kremer, Tabea
Geppert, Johanna
author_sort Stehr, Paula
collection PubMed
description Based on the theory of planned behavior (TPB), augmented by the concept of self-concordance (derived from self-determination theory, SDT), we conducted a study to identify the key determinants of physical activity in older adults. We applied structural equation modeling of telephone survey data from a random sample of adults aged 65 years and older living in Germany (N = 865). Relations of attitude, subjective norms, and perceived behavioral control (PBC) with intention strength and self-concordance of intention to be physically active were tested. Habit strength was analyzed as a moderator. Data analysis showed this model to be well-suited for explaining the intention to be physically active—especially for people with a weak habit. The influence of TPB components on intention would have been underestimated if we had investigated intention strength only, without considering the self-concordance of intention. While attitude and PBC had positive relations with a strong and self-determined intention, the subjective norm showed no relation with intention strength but, rather, with non-self-determined regulation forms. We conclude that the combined model provides a better theoretical foundation from which to explain physical activity intentions than does just one of the theories.
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spelling pubmed-81993222021-06-14 Determinants of Physical Activity in Older Adults: Integrating Self-Concordance into the Theory of Planned Behavior Stehr, Paula Rossmann, Constanze Kremer, Tabea Geppert, Johanna Int J Environ Res Public Health Article Based on the theory of planned behavior (TPB), augmented by the concept of self-concordance (derived from self-determination theory, SDT), we conducted a study to identify the key determinants of physical activity in older adults. We applied structural equation modeling of telephone survey data from a random sample of adults aged 65 years and older living in Germany (N = 865). Relations of attitude, subjective norms, and perceived behavioral control (PBC) with intention strength and self-concordance of intention to be physically active were tested. Habit strength was analyzed as a moderator. Data analysis showed this model to be well-suited for explaining the intention to be physically active—especially for people with a weak habit. The influence of TPB components on intention would have been underestimated if we had investigated intention strength only, without considering the self-concordance of intention. While attitude and PBC had positive relations with a strong and self-determined intention, the subjective norm showed no relation with intention strength but, rather, with non-self-determined regulation forms. We conclude that the combined model provides a better theoretical foundation from which to explain physical activity intentions than does just one of the theories. MDPI 2021-05-27 /pmc/articles/PMC8199322/ /pubmed/34072012 http://dx.doi.org/10.3390/ijerph18115759 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Stehr, Paula
Rossmann, Constanze
Kremer, Tabea
Geppert, Johanna
Determinants of Physical Activity in Older Adults: Integrating Self-Concordance into the Theory of Planned Behavior
title Determinants of Physical Activity in Older Adults: Integrating Self-Concordance into the Theory of Planned Behavior
title_full Determinants of Physical Activity in Older Adults: Integrating Self-Concordance into the Theory of Planned Behavior
title_fullStr Determinants of Physical Activity in Older Adults: Integrating Self-Concordance into the Theory of Planned Behavior
title_full_unstemmed Determinants of Physical Activity in Older Adults: Integrating Self-Concordance into the Theory of Planned Behavior
title_short Determinants of Physical Activity in Older Adults: Integrating Self-Concordance into the Theory of Planned Behavior
title_sort determinants of physical activity in older adults: integrating self-concordance into the theory of planned behavior
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8199322/
https://www.ncbi.nlm.nih.gov/pubmed/34072012
http://dx.doi.org/10.3390/ijerph18115759
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