The patient lies in dorsal decubitus with the knees maximum flexed and let to drop on the sides (which produces the extension of the adductor muscles of the thighs) and the soles glued together (the calcanei are brought as close as possible to the ischia). The therapist, kneeled, supports with the knees the joints of the patient’s legs while he exerts a light constant pressure on the patient’s knees (on the inner side), bringing them as close as possible to the floor. The extension position is maintained for 7seconds in the maximum painless point. There are 2 repetitions.