1, the patient’s legs apart, the distance between the two feet is slightly wider than the shoulders, the body remains upright position, can not lean forward, at this time the knees began to bend squat. 2, both knees bending angle according to the patient’s physical condition and muscle strength and different. If the patient’s physical condition is good, good thigh strength, squatting can reach 90 degrees of knee flexion, if the patient is weak, weak thigh muscle strength, both knees can be lightly flexed, this time the half squat position is higher, the patient more effort, can be later with the exercise, the thigh muscle strength increases, and then increase the angle of knee flexion. 3, each patient in the squat will have a painful angle, some squat to 30 degrees pain, some squat to 60 degrees, or 40 degrees pain, practice static squat best to avoid the pain angle, if squat to 30 degrees pain, you can continue to squat down to 60 degrees to avoid the 30 degrees of pain angle, and vice versa. 4, a squat duration each person varies greatly, are squatting until you can not hold on. Rest a minute between two squats, do not rest too long. Then practice the second squat, so that week after week, 30 minutes in a row for the day of a squat exercise. According to their own physical condition to determine the number of exercises, practice 1-3 times a day.