Three-year weight change by tertile-split groups of exercise autonomous motivation, in initially overweight premenopausal women (n = 149). Between-groups differences in weight change (ANOVA) observed at 12 (p = 0.065), 24 (p < 0.001) and 36 months (p = 0.005). Autonomous motivation includes the identified regulation and intrinsic motivation subscales of the Exercise Self-Regulation Questionnaire. Values used for tertile-split groups were calculated at 24 months, including all subjects (intervention and control groups collapsed), adjusting for experimental group membership (see reference 39 for more details).
Teixeira et al. International Journal of Behavioral Nutrition and Physical Activity 2012 9:22 doi:10.1186/1479-5868-9-22