What exercises do to lose belly and tighten?
You have personally found that abdominal exercises are not efficient to slim tummy. The main way to reduce inches of fat is to eat less doing a diet sufficient and ordered your calorie needs.
If you exercise and then eat a calorie burned higher than, the result is that weight gain or simply maintain it. Therefore, the only way to drop weight is to diet and supplement it with physical activity.
The exercises you must do to lose weight are those who work the large muscle groups like legs, back, chest and buttocks. These exercises consume large amounts of calories used as fuel.

A person who performs physical activity for over an hour each day can be viewed as a sportsman, so the following entries are valid for both those who engage in sport as a discipline for those who work to develop some physical effort.