The rehabilitation of glenohumeral Range of Motion in Patients with Frozen Shoulder: A Comparison Between Conventional Therapy, Placebo and 'SCENAR' Electrical Stimulation Therapy.

INTERVENTION: SCENAR electrical stimulation therapy. 1 X 30 minute treatment sessions on the shoulder joint per week for 12 weeks. SCENAR is administered in a setting similar to massage therapy, with the patient sitting or lying on a massage table. The device is then placed on the patients skin and moved around the area of the injury. During this the patient may feel a slight tingling sensation. SCENAR Placebo stimulation therapy. 1 X 30 minute treatment sessions on the shoulder joint per week for 12 weeks. This treatment will be exactly the same as SCENAR therapy, excpet that the patient will not feel a slight tingling sensation, this is a custom made placebo device that turns on but does not emit any electrical signal. The patients be assured that some people are more sensitive than others and may or may not feel anything during treatment. CONDITION: Frozen Shoulder PRIMARY OUTCOME: Shoulder range of motion. ; The Constant Shoulder Score and the Shoulder Assessment Form will be used. SECONDARY OUTCOME: To measure changes in pain and quality of life during recovery using, SF (Specific Function)‐36 PIQ (Pain Impact Questionnaire)‐6. INCLUSION CRITERIA: Patients must present with frozen shoulder.