What are the key points of pelvic girdle control? 1. Posterior tilt of the pelvic girdle: The therapist supports both sides of the child’s pelvis with both hands and makes it a posterior tilt position. The countermeasures for different types of children. (1) Irregular movement type: This type of child often presents symptoms of inadequate control and adjustment of the head, scapular belt inward, unable to support the body with hands and upper limbs in sitting position, and the lower limbs always jump up in a flexed position in the standing position, the soles of the feet cannot land, and cannot sit steadily on the chair. For such children, the pelvis can be kept in a posteriorly inclined position by this operation in the sitting position, so that the upper body can be flexed forward to maintain a better sitting posture. (2) Spastic type: The typical symptom of this type of child is scissor limb position and supporting weight with forefoot in standing position. For this type of children can make the pelvis tilt back in the standing position, shift the weight to the rear, promote the extension of the hip and trunk, and learn a good standing position. 2, pelvic with anterior tilt: The therapist supports both sides of the child’s pelvis with both hands to make it into anterior tilt position. Countermeasures for different types of children. (1) spastic type: some children in the chair sitting position, the performance of the head forward, the spine to form a round back state, and the upper limbs into a flexed position, the lower limbs fixed in the extension of the inward position, in the standing position when the heel can not land, become an unstable posture. For such children, they can sit on a chair, so that the pelvis is tilted forward and the trunk is fully extended, thus promoting the mobility of the hip joint and lower limb flexion and practicing a stable sitting posture. (2) Irregular movement type: Some children show lumbar hyperextension in walking, and knee hyperextension is often used as a substitute to prevent falls. For these children, the pelvis can be tilted forward to learn the full mobility of the lower limbs.