Training interventions
The two training interventions utilized in the current study were carefully matched for total energy expenditure. During a pilot study in our laboratory (Table Pilot testing of oxygen uptake (V̇OTreadmill exercise performed for 45 min per session at 70% of maximal heart rate.Abdominal crunch and torso rotation performed for a total of 84 min per session, as 4 × 4 min intervals at 30%–40% of maximal strength.Given that the subjects in the training intervention were older, had higher body weight, and lower V̇O