In conclusion, this study demonstrates that both DHIIT and
DIO reduce weight and body fat in overweight men. However,
only DHIIT results in a significant reduction in plasma visfatin,
abdominal fat mass, and IR as well as conservation of
lean body mass. In addition, DHIIT shows a greater reduction
in body weight and total body fat. These observations
demonstrate that adding a low-volume 20-minute HIIT (three
times/week) to an energy-deficit diet can improve the health
benefits of a weight-loss program.