1. Plate bracing consumes a lot of heat.

2. Sit-ups, you don't have to get up when your strength is not enough.

3. Push-ups. If you can't do it, get on your knees.

4. When you step on a bicycle, your legs will move alternately.

stand straight

6. Kneel on one knee and lift your legs alternately

7. Put your hands on your head, put your legs together and leave the ground vertically.

8. Slow and high leg lifts