Figure 2

Weight Regain After Weight Loss. (A) The percent of lost weight that was regained during the 9 week period of relapse for C, RS, C+EX and RS+EX groups is shown. Data were examined in a repeated measures ANOVA model for an effect of diet (RS), exercise (EX), time, and their interaction. EX/SED rats were excluded from this analysis. (B) The percent of lost weight that was regained during the last 4 weeks of relapse is shown for C rats (n = 7), all rats that exercised (EX, n = 12), and all rats that exercised, but became sedentary at week 5 of relapse (EX/SED, n = 6). Data were examined in a repeated measures model for the effect of EX/SED (C vs EX vs EX/SED), time, and their interaction. RS rats were excluded from this analysis. (C) The rate of gain at regular intervals was examined to determine the stages of relapse during which the groups differed. Data during the first 5 weeks of relapse was examined in a two-way ANOVA for the effect of diet (RS), exercise (EX), and their interaction. Only data within the first two weeks exhibited a significant effect of exercise or diet. After week 5, a separate analysis of effect of EX/SED (C vs EX vs EX/SED) revealed a higher rate of gain in EX/SED than C and EX rats for the remainder of the study.