1. Sit in two-thirds of the chairs, with your back straight and your feet together.

2. 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.

Second, talk about slimming at night in the dormitory

1. Lie flat with your hands at your sides.

2. Bending of left leg

3. Straighten your right leg and try to touch your toes with your hands. Hold this position for 5 seconds.

4. Switch to the other side and make a 10 group.

Third, turn your legs.

1, lie flat with your legs straight. Put your arms at your sides and slowly lift your right leg. At an angle of 45 degrees to the ground.

2. Turn it clockwise for 8 times, then turn it counterclockwise for 8 times.

3. Change your legs after you finish, repeat this action, and adjust your breathing after two actions.

Fourth, ride a bike.

1, lie flat, legs straight, hands on your chest.

2. Then lift your legs and do cycling.

3. Push forward 12 times and backward 12 times. Take a break of 3 seconds between each group.

4. Adjust your breath and get up when you're done.

Dear friends, remember, you must practice often during recess and dormitory!