Figure 2
From: Motivation, self-determination, and long-term weight control
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).