We predict that while RMR should be proportional to an individuals» mean level of
sustained behavioral
activity (one aspect of its personality), individuals with greater
aerobic scope will also have greater scope to express behavioral plasticity and / or greater unpredictability in behavior (= greater residual variation).
Developing
aerobic endurance means that you're training your body to
sustain some level of
activity for a prolonged period of time, (typically 30 minutes if not much more), and you're utilizing fat as a fuel source rather than glucose (sugar) or some other energy source.