If you lose weight, you can exercise and gain weight! As long as there is a reasonable time (at least three times a week), a reasonable diet (eat less and eat more meals, and three meals a day will increase to five meals, that is, 10 in the morning and 3 pm). Keep the daily exercise at 1.5 hours. Detailed fitness plan can be consulted in the local gym. Everything depends on persistence. As for bowlegs, it's a bone problem. I'm sorry the gym can't straighten it. Come on!