Action 1: Sit with your legs folded.
1, arms bent, palms on the ground, so that the upper body forms an angle of about 60 degrees with the ground.
2. Tighten your abdomen and lift your legs off the ground (only your hips touch the ground).
3, abdominal muscles force, legs close to the chest.
4. Slowly straighten your legs and return to the initial action.
Action 2: Step on the bike.
1. Hold your hands back to the position where your hips are concentrated, hold your chest out and bend your knees so that your knees are as close to your chest as possible, forming a V-shape;
2. Cross your feet clockwise and counterclockwise to draw a circle. In the process of drawing circles, it is better to keep the thighs as close as possible to the chest to keep the whole body V-shaped; Draw 1 circle on the left and right sides respectively, and draw 1 time.
3. Always keep your upper body straight and keep at least 45 degrees from the ground.
Action 3: Frog Show
1. Sitting posture, with knees in both hands parallel to shoulders, chest out and knees bent, so that knees are as close to the chest as possible, forming a V-shape;
2. Push your feet forward in the air, and at the same time stretch out your hands to do chest expansion;
3. Then take back your knees with your feet suspended, put your knees in your hands, and go back and forth once.
4. Always keep your upper body straight and at least 45 degrees off the ground.
Action 4: Cross-legged/cross-legged sit-ups.
1. Keep your feet straight and open at least 60 degrees;
2. Lie flat, put your left hand behind your head, straighten your right hand, sit upright and touch your toes, first left and then right, and your back needs to be straight during the whole process;
3. Lie down, change hands, put your right hand behind your head, straighten your left hand, sit up and touch your toes, first right and then left. The whole process requires a straight back;
4. Be careful not to touch your body when sitting up, and don't sit up with your chin during the whole process. Sit together once.