an increased motility of the shoulder joint, i.e. the instability (manifesting itself during the skipping of the joint)
a pain which can be connected with a primary affection – for example with a lesion of labrum glenoidale, or it introduces a secondary traumatic affection of periarticular structures. These secondary damages are most often diagnosed mistakenly as impigement syndrome. But they can be hidden under the diagnoses of tendinitis of the long head of the biceps, or a damage of the rotator cuff (unlike the damage of the rotator cuff, the instability rather occurs at younger people who make sports, and who do not belong to the period of the origin of the damage of the rotator cuff5).
5at the age around 60 and over