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Table 1 Details of home-based exercises

From: The effects of a home-based exercise intervention on elderly patients with knee osteoarthritis: a quasi-experimental study

Exercises Details
Isometric contractions of the quadriceps 1. Sitting or lying down, legs relaxing;
2. Tight the thigh muscles on one side with maximum strength, keep it for 5 s, and relax for 2 s. Repeat 10 times for 1 group and practice 10 groups in succession;
3. Relax this leg and repeat the above action on the other side;
4. Exercise alternately 3 to 5 times with both legs.
Supine straight-leg lifts 1. Lie on the back, stretch knees;
2. One leg is flexed to support the bed surface, the other leg is raised to the heel, about 20 cm away from the bed, held for 5seconds, put down for 5 s, repeat 10 times;
3. Relax this leg and repeat the above action on the other side;
4. Exercise alternately 3 to 5 times with both legs.
Leg lifts in the prone position 1. Lie face down, stretch knees;
2. Lift one leg back to the toe, about 20 cm away from the bed, held for 5 s, put down for 5 s, repeat 10 times;
3. Relax this leg and repeat the above action on the other side;
4. Exercise alternately 3 to 5 times with both legs.
Passive knee flexion 1. Sit on the bed;
2. Hold your hands on one side of the ankle, slowly and forcefully hold the leg to the chest to maximize knee flexion, keep60 s;
3. Relax this leg and repeat the above action on the other side;
4. Exercise alternately 2 to 3 times with both legs.
Passive knee extension 1. Sit on the bed;
2. Put one side of the foot pad 8~10 cm high;
3. Apply light weight to the raised knee joint or apply proper pressure by hand for 60 s;
4. Relax this leg and repeat the above action on the other side;
5. Exercise alternately 2 to 3 times with both legs.
Resistance knee extension 1. Sit on the chair or at the bed, tie a 1 kg sandbag to the ankle, keep the upper body straight;
2. Do not move the thighs, lift your calves until the knees are fully extended, hold for 5 s, rest your legs for 5seconds, repeat 10 times;
3. Relax this leg and repeat the above action on the other side;
4. Exercise alternately 2 to 3 times with both legs.
Resistance knee flexion 1. Standing up, tie a 1 kg weight sandbag to the ankle joint, and support the upper edge of the chair;
2. Stand on one leg and pull the calf back to the other leg, flexing the knee as much as possible while keeping the thigh perpendicular to the ground. Hold for 5 s, put your legs down for 5 s, repeat 10 times
3. Relax this leg and repeat the above action on the other side;
4. Exercise alternately 2 to 3 times with both legs.
Shifting the center of gravity (left and right) 1. Stand up and support a table with a height of 70~80 cm and open the feet;
2. Keep your knees upright, slowly move the center of gravity to the left, and gradually lower your right heel;
3. Keep your knees upright, slowly move the center of gravity to the right, and gradually lower your left heel;
4. Repeat the above action for 3 min.
Shifting the center of gravity (forwards and backwards) 1. Stand up and support a table with a height of 70~80 cm and take one step forward on one side;
2. Keep the knees upright, slowly move the center of gravity forward, and the heel of the hind foot gradually leaves the ground;
3. Keep the knees upright, slowly move the center of gravity backwards, and the forefoot gradually leaves the ground;
4. Repeat the above action for 3 min.