AC Joint Sprain Rehab: The AC joint is the attachment site of the collarbone (clavicle) and acromion (tip of shoulder). When direct force is applied to the AC joint, injury to one or multiple ligaments (acromioclavicular, coracoclavicular, and the coracoacromial ligament) can cause AC joint pain and instability. Two of the most common ways people injure their AC joint is by falling on an outstretched arm or on the side of the shoulder. Another way to people sprain an AC joint is a direct blunt force like a football hit or running into something. Here are therapy exercises to rehab an AC Joint Sprain: 1️⃣ Overhead wall slides with band 2️⃣ Wall taps with band 3️⃣ Prone snow angels 4️⃣ Cross body and overhead wall slides 5️⃣ Sleeper stretch