Shoulder Impingement Syndrome (SIS) is defined as the mechanical entrapment of the rotator cuff (mainly the supraspinatus tendon) or the sub-acromial bursa in the sub-acromial space between the humeral head and the acromion or coracohumeral ligament .It is typically exacerbate when the arm is elevated or when overhead throwing activities are performed . Mulligan technique is a type of manual therapy with hypoalgesic effects, increases joint ROM, enhances muscle function and treats specific pathologies. Mobilization with movement (MWM) can be defined as the application of a sustained passive accessory force / glide to a joint while the patient actively performs a task that was previously identified as being problem.
the aim of this study is to investigate the Effect of mulligan technique on sub-acromial space in patients with shoulder impingement syndrome