1. Prone back extension.
2. Shoulder external rotation starting in 45° of internal rotation, with the arm by the side and the elbow flexed to 90 °.
3. Shoulder internal rotation starting in 45 ° of external rotation, with the arm by the side and the elbow flexed to 90 °..
4. Shoulder abduction (scapular plane) through a 0- to 60-° with the elbow flexed 90 ° and the shoulder in neutral rotation.
5. Shoulder flexion (sagittal plane) through a 0- to 60-°starting with the elbow flexed 90 ° and the shoulder in neutral rotation and punching forward, simultaneously extending the elbow and flexing the shoulder.
6. Internal rotation towel stretch: Subjects will be instructed to sit or stand while holding a towel with the affected arm behind the back and to use the other arm to pull the affected arm up the back.

This group will receive the previously mentioned exercises protocol targeting shoulder joint in addition to Maitland mobilization for thoracic spine.

Treatment would be administered at the vertebral level revealed during the evaluation of thoracic SNAG.

The thoracic spine mobilization will be consisting of oscillations to the thoracic vertebrae from the prone positions for repeated 30 times with 1 min interval between each 4 sets for 15 minutes. For central posterio-anterior mobilization, a grade III large amplitude rhythmic oscillation in the postero-anterior direction will be applied to the joint sign segment which is defined as the patient's most painful or hardest to move segment. It will be detected through a passive accessory intervertebral motion (PAIVM) test. T6,7 will be used as a site for application if the joint sign can't be detected. The frequency of treatment sessions will be 3 sessions per week for 4 weeks.

The patient will move the affected shoulder with the thumb pointing upwards through the full available active range of shoulder flexion, abduction and external rotation. The flexion angle will be formed by aligning the goniometer with the lateral epicondyle of the humerus, a vertical line in the coronal plane and the axis with the middle of the glenoid fossa. The abduction angle will be formed by aligning the goniometer with the lateral epicondyle of the humerus, a vertical line in the sagittal plane , and the axis in the middle of the posterior glenohumeral joint line. The external rotation angle will be formed by aligning the goniometer with the ulna styloid process, a horizontal line in the transverse plane , and the axis at the olecranon process of the ulna.

A lateral view image of the patient will be analyzed after fitting lateral earlobe markers. The patient will stand sideways against a calibration plane with shoulders and elbows at flexed 90 degrees while looking at a fixed point on the opposite wall. The shooting will be repeated 3 times with a camera placed 1.5 meters away from the calibration plane and at a one-meter height from the ground on a tripod. In the software, a line parallel to the calibration plane from the ear lobe would be considered the plumb line. The farthest point from the plumb line will be considered the apex of the kyphosis angle. Then, two lines at the top and bottom running parallel to the curvature of the back are considered the two lines of the angle. These lines intersected at the apex of each other. The angle of intersection of the lines was measured by Kinovea and decreased from 180°.

The DASH-Arabic contains 30 items relating to the level of difficulty the patient faces while performing different activities using the arm, shoulder and hand; items assessing the severity of pain symptoms; and items assessing problems that affect social activities, work and sleep, and psychological impact. In the DASH-Arabic, each item has five response choices that range from 1, ''without any difficulty or no symptoms exist'' to 5, ''unable to engage in activity or very severe symptoms''. A minimum of 27 of the 30 items must be completed for the questionnaire to be regarded. The higher the score, the greater the disability.