Figure 5. Modeling basal metabolic rate (BMR) from organ composition.

The plot shows the r² (x100) (grey dots) and the delta Akaike information criterion (ΔAIC) (black dots) for each of 20 different models derived from stepwise regression performed by both backward elimination (models 4 to 20) and forward inclusion (models 1 to 4). The components of body composition included into each model are listed. Models 3, 4 and 5 minimized the ΔAIC and were used to predict metabolic rate of mice under calorie and protein restriction.