The foot dorsiflexion angle is the angle between the back of the foot and the calf when one hand holds the child’s calf and pushes the child’s foot to the front of the calf with the other hand, the normal foot dorsiflexion angle is 45 degrees. Foot dorsiflexion angle is divided into two kinds, as follows: 1, foot dorsiflexion fast light angle, supine knee extension position, to ensure that the whole calf triceps condition can be detected, light and faster pressure plantar dorsiflexion to just resistance, and then the same strength and speed check no longer change, the angle between the back of the foot and the front side of the calf for foot dorsiflexion fast light angle, calf triceps pull reflex hyperactivity when the angle increases. 2, foot dorsiflexion slow heavy angle, in foot dorsiflexion fast On the basis of light angle and then gradually increase the strength, slowly continue to press the plantar dorsiflexion to can not be pressed down, the dorsal foot and calf anterior room angle for the dorsiflexion of the foot slow heavy angle, slow heavy angle suggests that the calf muscle, tendon has no contracture, adhesion, or the degree of adhesion.