Lie on your back on the floor with your lower back close to the ground. Put your hands on your head and open your arms. Lift your legs and climb on the bike slowly. Exhale, lift your upper body, touch your left knee with your right elbow, hold your posture for 2 seconds, and then restore. Touch the right knee with the left elbow for 2 seconds, and then slowly return to the starting position.

Skinny leg exercise

1. Lie flat on the bed or on the floor.

2. Lift your legs, stand in the air and clap your thighs with your hands.

3. Keep your calves relaxed, then lift your waist with your hands and hang your legs.

4. The calf is pedaled back and forth in the air with the foot of a bicycle. At this time, try to pay attention to the strength of the thigh.

5. After finishing, pat the calf and thigh with both hands to relax the leg muscles.

Abdominal contraction action

This action is the best fitness action for rectus abdominis (that is, "six-pack abdominal muscles") and oblique muscles (that is, waist).

The correct action is: 1. Lie on your back on the floor;

2. Knees are close to the chest and shoulder blades are lifted off the ground;

3. Straighten your left leg at an angle of about 45 degrees with the ground, and twist your upper body to the right at the same time, so that your left elbow is close to your right knee;

4. Take turns left and right. I like riding a bike. I suggest doing it 12- 16 times.