Click name to view affiliation
This nonblinded randomized controlled trial investigated the efficacy of a physical activity (PA) intervention underpinned by self-determination theory. Participants (N = 31, mean age 69 years [SD = 4.9]) diagnosed with bowel polyps were randomized to an active lifestyle program (ALP; n = 17) or standard care (n = 14). ALP received supervised exercise and counseling for 6 months. Both groups were followed up at 12 months. Outcomes were change in PA and behavioral regulation. Data were analyzed with intention to treat. At 6 months, differences were observed for behavioral regulation in favor of ALP (p < .05). PA differences were significant for leisure, walking, and vigorous in favor of ALP (p < .05). The self-determination theory can be an effective strategy for promoting PA behavior change in this population, but a larger trial is needed to further explore the utility of the self-determination theory in this context.
Lewis is with the Department of Computer and Information Sciences, Digital Health and Wellness Group, University of Strathclyde, Glasgow, United Kingdom. Shaw, Banerjee, Dieguez, and Belshaw are with the University of East Anglia, Norwich, United Kingdom. Hernon is with Norfolk and Norwich University Hospital, Norwich, United Kingdom. Saxton is with the Faculty of Health and Life Sciences, Northumbria University, Newcastle upon Tyne, United Kingdom.