1. Lift your leg and hook your toes: 10 seconds and then change your left leg, three times in each group. Keep your body straight and don't lean back.

2, calf exercise: stand up and count silently 1 second, put it down, stand on tiptoe for one second * * * to do five groups.

3, clip books to lose weight: sit in two-thirds of the chairs, the back is straight, and the feet are close together. Hold a book on your knee and lift your legs. Keep your thighs as close to your abdomen as possible. Stop for five seconds. Put it down. Repeat this action 20 times.