Frozen Shoulder: Causes & Treatment | Tennis4Life

Frozen shoulder, more correctly known as adhesive capsulitis (AC), is a common cause of shoulder pain and loss of shoulder joint motion in the over 40s. 
In ‘primary’ cases of AC, there is no significant reason for the onset pain or stiffness, whereas secondary AC can occur following an injury, trauma, surgery or illness. 
In younger people below the age of 40 and athletes, primary AC is rare; AC is more likely to be secondary in nature – for example following a rotator cuff injury. 

When AC does occur however, it can result in considerable disruption to any tennis activity, especially given the typically long timescale it requires to resolve. 

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