The shoulder stability has always been related to the rotator cuff complex, although more and more is contemplated the Teres Major muscle and its affectation in the shape of the trigger points within this pathology. As non-invasive measures for the deactivation of these myofascial points, Travell and Simons recommended the pressure maintained along with muscular stretch.

Stretching are usually a technique widely used in our practice as physiotherapists and it is necessary to study its effects in the clinic. As an objective we plan to compare the effect of passive stretching in short lever according to the Orthopaedic Manual Therapy concept if it produces better result in the pain, the rank of movement and in the Function, with the effect of stretching by means of a long lever in affected patients of subacromial syndrome.

This is a randomized controlled study with blind evaluator approved by the Ethical Committee of the Institut d'Investigació en atenció Primaria Jordi Gol.

After checking the inclusion and exclusion criteria, you will be asked, voluntarily, that the patient sign informed consent. The variables will then be valued independent and dependent on the study. It will randomly be assigned to one of the three groups in the study. The 3 groups receive the protocolized treatment for the service they consist of In superficial thermotherapy, an educational talk and kinesitherapy. The intervention groups will receive alternate days, with a total of six sessions, the stretch corresponding to the group to which they have been assigned.

In the case of the Long Lever Group, the intervention consists in a rotary stretch through the humerus as a mobile point. And in the case of the Short Lever Group a stretch of translocation through the scapula as a mobile point.

The main variables used will be: age, side effects, habits involving the shoulder, pain intensity, pain threshold at pressure and function, among others. The dependent variables will be measured: pain intensity by means of Analogue Scale Visual, the function through the Constant-Murley test, the Movement Range with Goniometer and the Pressure Threshold Pain with a pressure gauge brand Stech.

Inclusion Criteria:

• More than 18 years.
• Present clinical diagnosis of Subacromial Impingement Syndrome
• Threshold of pain in the Teres Major muscle pressure less than 2 Kg / cm2.
• Signature of informed consent.

Exclusion Criteria:

• Pre-shoulder surgery (<1 year).
• Inability to keep supine position.
• Contraindications for stretching: (collagen / tissue diseases connective: Ehlers-Danlos, Morquio, Grisel), scars in the healing process or pathological in the area like keloids, acute inflammatory process on the shoulder (<7 days), severe limitation of the range of movement towards flexion (<90º passive).
• Infiltrations (the last 3 months) or during treatment.
• Be pending litigation or legal claim.
• Cognitive problems or idiomatic barrier.

Individual Participant Data can be shared once the study has finished and its subsequent publication with anyone who requires it formally in writing to the Main Investigator

Individual Participant Data will be available after its publication. Please contact the Main Investigator