Effect of physical therapy in patients with shoulder impingement syndrome

INTERVENTION: Nine sessions (approximatly 30 minutes/session; three sessions/week) of usual care (ultrasound [US], transcutaneous electrical nerve stimulation [TENS], stretching, massage) versus nine sessions of scapular motor control training (exercise therapy for scapular stability muscles). Total duartion of interventions: three weeks/patient. CONDITION: Shoulder impingement syndrome ; Musculoskeletal Diseases ; Shoulder lesions PRIMARY OUTCOME: The following will be assessed at baseline, after nine therapy sessions and after six months: ; 1. Pain: Visual Analogue Scale (VAS), Verbal Rating Scale (VRS), Shoulder Disability Questionnaire (SDQ), Hawkins Impingement Test, Neer Impingement Test, the Empty Can Test ; 2. Mobility: inclinometry ; 3. Strengh: hand‐held dynamometer SECONDARY OUTCOME: The following will be assessed at baseline, after nine therapy sessions and after six months: ; 1. Scapular Assistance Test; 2. Scapular Reposition Test INCLUSION CRITERIA: 1. Both males and females, greater than 18 years of age 2. Primary and secondary impingement