Comparison of Two Treatments for Acute Rotator Cuff Tendinopathy

Participants will be asked to perform isometric strengthening exercises in lateral rotation and abduction. Participants will place their affected arm by the side with the elbow gently tucked in close to the body, elbow flexed at 90°, and the thumb pointing upwards. The opposite hand will resist the lateral rotation and abduction. They will be asked to push against the uninvolved hand, building up to sub-maximal pressure (approximately 50% to 75% of the maximum possible force) over five seconds. Then the contraction will be slowly released. A maximum pain level of 5/10 will be accepted when performing the contraction. Elevation movements will also be performed 3 times a day in the frontal, sagittal and scapular plane.

Participants will be asked to apply ice wrap on their painful shoulder 3 times a day over the area of pain for 15 minutes. They will be asked to place the ice wrap inside a damp towel cloth (minimise the risk of an ice burn) and secure around the shoulder with a towel. After the 15 minutes, they will be asked to perform gentle, slow, pain free shoulder movements that do not provoke pain. All participants will be provided with a commercial ice wrap. They will also be asked to avoid painful movements, working above shoulder level, repeated or sustained elevation movements and lifting weights.