I. Bed sitting position: 1. The bed is as flat as possible, and the patient puts pillows on the lower back. 2, head: do not fix, can move freely. 3, trunk: straighten (body and bed surface as vertical as possible). 4, hip: flex the hip 90 °, the weight is evenly distributed on both sides of the hip. 5, the upper limbs: placed on an adjustable table, on a pillow. It is worth noting that: the affected shoulder and hand should be well protected to avoid pulling. Sitting on a chair or wheelchair: 1. Place a pillow on the lower back. 2. The patient extends his hands forward and rests his elbows on the table. Transfer the hands in the correct position. 3. Place both feet flat on the floor or on a flat bench. Pay attention to the protection of the affected shoulder, affected hand and affected hip, and place a small pillow between the knees to avoid internal and external rotation of the affected hip.