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. 2022 Aug-Sep;34(4-5):569-580.
doi: 10.1177/08982643211049079. Epub 2021 Oct 18.

Predicting Decisional Determinants of Physical Activity Among Older Adults: An Integrated Behavior Approach

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Predicting Decisional Determinants of Physical Activity Among Older Adults: An Integrated Behavior Approach

Christian E Preissner et al. J Aging Health. 2022 Aug-Sep.

Abstract

ObjectivesThe present study applied the Integrated Behavior Change Model to investigate how behavioral decisions are predicted, namely, intention, planning, and habits, with respect to physical activity. Methods: Participants were older adults (ages 65+) residing in the U.S. (N = 667) who completed online measures of behavioral determinants (autonomous motivation, perceived behavioral control, subjective norms, attitudes, intention, habit, and consistency), in addition to past behavior. Results: A structural equation model revealed that intention was predicted by past behavior and social-cognitive determinants. Social cognitive determinants mediated between past behavior and habit, as well as between autonomous motivation and habit. Intention mediated between past behavior and planning. Discussion: This study highlights the importance of multiple processes (social cognitive, habit/automatic, and post-intentional/planning) that formulate physical activity intentions. Mediation pathways revealed the importance of autonomous motivation for establishing intentions and habit. Facilitating these processes among older adults could be effective for promoting physical activity.

Keywords: habit; integrated behavior change model; older adults; physical activity.

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Conflict of interest statement

Declaration of Conflicting Interests: The author(s) declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.

Figures

Figure 1.
Figure 1.
Schematic of the Integrated Behavior Change (IBC) model for physical activity, following Hagger & Chatzisarantis, 2014.
Figure 2.
Figure 2.
Structural equation model predicting older adults’ (N = 667) physical activity habit, intention, and planning to be physically active. Note. Control variables and indirect effects have been omitted for clarity. Dashed lines indicate hypothesized pathways that were found to be statistically insignificant. *p < .01.

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