Long bedridden exercise lower limb strength can do open and close the leg, lying leg lifting and flexion and extension of the dorsum of the foot and other sports exercise. 1. Open and close the legs: legs together or feet shoulder-width apart, the left leg and the right leg to both sides at the same time, and then retracted to the inside, repeated about 300 times a day, divided into three to four times. 2. Lying leg lifting: try to lift the lower limbs according to your own situation, and maintain this position for a few seconds, when the legs feel tired, you can put them down, rest for about 10 seconds, repeat the above action, repeat about 100 times a day, divided into 3 to 4 times to complete. 3. Flexion and extension of the instep: hook up the toes to the maximum extent, maintain this position for about 5 seconds, and then make the toes step down to the maximum limit, maintain for about 5 seconds, repeat about 300 times a day, according to their own situation to be completed in stages. Please exercise reasonably under the guidance of professionals to avoid injury.