The University of Pittsburgh last fall released study data suggesting that moderate exercise is nearly as effective as vigorous exercise for losing weight. Researchers studied the effects of exercise intensity and duration in overweight, previously sedentary women. After one year, women who did 200 minutes per week of moderate activity such as walking lost an average of 18 pounds, whereas women who did higher intensity exercise such as running for the same amount of time lost 19.5 pounds. Note that the weight loss was not due to exercise alone; diet was also an essential factor. All of the women cut their calories to 1200 to 1500 per day during the study.