Deltoid is the large muscle responsible for lifting the arm and also giving the shoulder its range of motion. It is located in uppermost part of the arm, at the shoulder. Tendons attach the deltoid to the collarbone shoulder blade, and upper arm.
Deltoid can be sore for a variety of reasons, including overuse and tendon injuries
Deltoid injuries can also be extremely painful and debilitating. When deltoid muscle is injured, a person may feel pain or tenderness at the front, side, or back of the shoulder, especially when lifting the arm. 
And in some cases, the deltoid muscle may be torn and cause swelling and bruising. Strains are given a grade of 1–3, according to their severity.
The most common causes of deltoid pain are overuse of injuries and strains. People who use their shoulders and deltoid muscles repetitively, especially athletes, have an increased risk of deltoid injury. A strain also can suddenly result from heavy lifting or an accident, such as a trip or fall. Most injuries to deltoid muscle take time to develop and are caused by activities such as swimming, lifting weights, or playing ball.
Our expert Physiotherapists at Sara Rehab can teach you exercises that should be done three to five times a day to strengthen your deltoid muscle. It will also reduce your pain and improve both the range of movement and your arm function.
These exercises must be done for at least 12 weeks and must always be performed and also start lying down to begin with. You can do these exercises under the supervision of our qualified physiotherapist. Our excellent Physiotherapists are the ultimate experts and will assess, teach and treat with clinical analysis and hands on treatment. Our main focus is to reduce your pain caused by deltoid injury and again lead a pain free and comfortable. Our goal at Sara Rehab is to get rid of your pain from our expert physiotherapists by calling 905 497 4550.