ArticleThe clinical respiratory journal2026
Self-Determined Motivation and Physical Activity in Chronic Obstructive Pulmonary Disease.
Article in The clinical respiratory journal, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
backgroundChronic Obstructive Pulmonary Disease (COPD) is associated with reduced physical activity, negatively affecting prognosis and quality of life. According to Self-Determination Theory (SDT), the quality of motivation plays a key role in sustaining active behavior, but evidence in COPD remains limited.
objectiveThe objective of this study was to examine the associations between different types of exercise motivation and objectively measured physical activity and sedentary behavior in individuals with COPD.
methodsThis cross-sectional study included 50 community-dwelling individuals with COPD (GOLD stages 2-3; mean age 69.4 ± 7 years). Motivation was assessed using the Behavioral Regulation in Exercise Questionnaire (BREQ-3) and the Self-Determination Index (SDI). Physical activity was objectively measured with the ActiGraph GT3X accelerometer. Associations were examined using Spearman's correlations and hierarchical multiple linear regression models.
resultsIntegrated regulation was positively correlated with light physical activity (rho = 0.43, p < 0.05), total physical activity (rho = 0.40, p < 0.05), and daily step count (rho = 0.43, p < 0.05). Intrinsic motivation was positively correlated with light physical activity (rho = 0.37, p < 0.05), total physical activity (rho = 0.37, p < 0.05), and daily step count (rho = 0.35, p < 0.05). The Self-Determination Index was positively associated with light physical activity (rho = 0.28, p < 0.05) and daily step count (rho = 0.33, p < 0.05), but showed no significant association with sedentary time. In hierarchical regression analyses, higher levels of integrated regulation were independently associated with higher daily step count, with each one-unit increase associated with 687 additional steps per day. For total physical activity, integrated regulation showed a borderline independent association with the outcome after adjustment for clinical covariates (β = 0.279, p = 0.054), whereas FEV
conclusionSelf-determined motivation was associated with more favorable physical activity profiles in individuals with COPD. Integrated regulation was independently associated with daily step count, while higher self-determination was associated with lower sedentary time. These findings suggest that autonomous forms of motivation may be important factors to consider when promoting active lifestyles in people with COPD.
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