If you want to thin belly, do some sit-ups, and then run for more than 20 minutes, preferably 3 to 45 minutes, not too long. Want to stovepipe, do several sets of squats and run. If you don't want to grow muscles, do more than 15 in each group and do 4-8 groups. If you want to exercise your muscles, do 5-8 groups in each group. If you are heavy, each group should do less 1 set until it reaches the peak, and then lose weight. By the way, you must warm up before you do it, so as not to hurt your joints.