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Long-term changes in physical activity following a one-year home-based physical activity counseling program in older adults with multiple morbidities.
Hall KS, Sloane R, Pieper CF, Peterson MJ, Crowley GM, Cowper PA, McConnell ES, Bosworth HB, Ekelund CC, Morey MC. Long-term changes in physical activity following a one-year home-based physical activity counseling program in older adults with multiple morbidities. Journal of aging research. 2010 Dec 26; 2011:308407.
This study assessed the sustained effect of a physical activity (PA) counseling intervention on PA one year after intervention, predictors of sustained PA participation, and three classes of post-intervention PA trajectories (improvers, maintainers, and decliners) in 238 older Veterans. Declines in minutes of PA from 12 to 24 months were observed for both the treatment and control arms of the study. PA at 12 months was the strongest predictor of post-intervention changes in PA. To our surprise, those who took up the intervention and increased PA levels the most, had significant declines in post-intervention PA. Analysis of the three post-intervention PA trajectories demonstrated that the maintenance group actually reflected a group of nonresponders to the intervention who had more comorbidities, lower self-efficacy, and worse physical function than the improvers or decliners. Results suggest that behavioral counseling/support must be ongoing to promote maintenance. Strategies to promote PA appropriately to subgroups of individuals are needed.