1, body shape: shoulder collapse, also known as oblique shoulder and flat shoulder. From the outside, the shoulders on both sides are inclined downward. Sliding shoulder, also known as shoulder collapse and oblique shoulder, is usually caused by weakness of upper back muscles and compensation of upper trapezius muscles.

2. Exercise mode: the shoulders collapse, the trapezius muscles protrude upward, the overall shoulder width is not enough, and the chest and head are slightly extended when walking. Shoulder slip is caused by natural factors (shoulder muscle strength is insufficient, and there is always a chest when sitting and walking). This form will increase the angle between the shoulder and the neck root, resulting in a slippery shoulder posture. The cervical spine will stretch forward under this forward and downward pulling force, the neck will stretch forward, and the upper trapezius muscle will be strong.