1, squat down

Exercise site: quadriceps femoris.

Measures: Squat down, keep your waist straight and keep your hands balanced.

2. Sit-ups in the back chair

Exercise site: deltoid and triceps brachii, waist and abdomen muscles.

Measures: Turn your back to the chair, press the edge of the chair with your backhand as the support point, then straighten your arms after bending, and keep your feet still.

Step 3 push-ups

Exercise site: pectoralis major and latissimus dorsi.

Measures: Pay attention to breathing methods, inhale when propping up and exhale when pressing down.

4. Turn jumps on and off

Exercise site: lower limb muscles, cardiopulmonary function.

Action method: stand in place, stir your hands and feet together.