Method 1: Tie your legs and sleep every night. The general method is to tie the outermost part of the thigh and calf near the knee with two straps, that is, one to tie the thigh and the other to tie the calf. If you want to enhance the effect, you can pad some books between your feet (especially between your feet) (the thickness depends on the situation), pad your schoolbag with soft cotton cloth and clip it up. It won't hurt you. The correction method of the "O" leg is as follows: (1) Stand up straight, put your feet together, squat and bend your knees with both hands for 20 ~ 3o times. (2) Bend down, and make circular movements with both hands and knees to the left and right for 20-30 times. (3) Keep your feet slightly open, bend over, and tuck your knees in your hands to stop your knees from leaning inward. Stop for 10 second each time and do it for 5 ~ 10 times. (4) Stand with two feet in parallel. First, take the heel as the axis and do toe abduction and internal rotation; Then do heel abduction and internal rotation 20 ~ 30 times with tiptoe as the axis. (5) Sit in a chair and try to hold the book with your calf for a while. If you tie your knees with rubber bands, the effect will be more obvious. (6) Sit on your knees, your waist collapses, your feet slowly move outward, and your waist will gradually straighten. Do 15 ~ 20 times. Simple exercise to correct "O" leg 1. Leg press on lunge side, press one leg 30 times, each leg alternately twice. 2. The barbell pinches the legs and squats. Carry a barbell with a medium weight on your shoulders, with your legs about shoulder width apart, slowly squat down to full squat (knee angle is less than 90 degrees), then quickly stand upright and clamp your legs. 1 group did 8 ~ 10 times, and * * group did 4~6 times. 3. Kneel down with your legs together. Stand with your feet together, bend over, hold your knees with your hands, and do the action of pushing and clamping inward (don't separate your legs), then do the squat and standing action 1 time, then do the exercises of turning your knees left and right 1 time, and so on. Every 15 times is 1 group, and * * does 3 groups. 4. Exercises the legs with external swing and internal clamp every 15 times 1 group, * * 4 groups. 5. Sit in a chair with a book between your legs, straighten your legs, and put a book with appropriate thickness on the upper part of your ankle (lower part of your calf) for several minutes. When practicing, you can tie a rope at the lower part of the knee joint, which is better. 6. Two people do leg flexion and extension exercises, 8 times is 1 group, and * * * does 4 groups.