Not only does weight training prevent abdominal fat gain over time; it can also induce belly fat loss in the short-term. In 2003, researchers for the Journal of Physiological Anthropology and Applied Human Science compared aerobic training alone to a combination of aerobic training and weight training. Women in the aerobic training group did aerobic exercise six times per week, whereas those in the combined group did aerobic training three days per week and weight training three days per week. Study results showed that women in the combined group lost more abdominal fat than those who did only aerobic training. This suggests that abdominal fat loss is enhanced when weight lifting exercises are incorporated into a routine that also includes aerobic exercise.