Try to lift your legs! And keep this position for a few seconds until your feet feel tired. Lift your feet slowly and hold this position for a few seconds. Slowly lift the calf until it is the same height as the thigh. Hold this position for 30 seconds, then retract your legs. Take 10- 15 times as a group of actions, and then gradually increase the amount of exercise after completing a group of actions.

Step 2 cross your ankles

Cross your legs and ankles, bend your knees at the same time, take a supine position, put your hands on your hips, bend your knees and cross your ankles.

Step 3: Lie flat with your legs.

Stretch your knees, lift your crossed feet to the ceiling, stretch your knees as much as possible and contract your thigh muscles. Take 15-20 times as a group and make 1-3 groups.

4. Knee pillow

Hold the pillow on your knees and squeeze inward together. Sit on the bed, fold the pillow in half, put it between your knees and squeeze it dozens of times.