A shoulder horn is an apparatus that is specifically designed to be used in conjunction with shoulder exercises. This is meant to be a physical aid for rehabilitation or physical therapy patients who are suffering from shoulder-related problems. Patients who suffer from pain due to an incorrect balance of muscles within the shoulder often need assistance during exercise to isolate related muscle groups. The shoulder horn is worn around the shoulders to provide that assistance.

When the individual is exercising the general area of the shoulder rotator, the position of the arms is said to be crucial for success. The shoulder horn was created to help maintain the recommended positioning of arms while the exercises are being performed. The shoulder horn is aimed at helping the individual keep from locking certain joints, thus preventing potential damage or injury to the area. It also was developed by physical therapy and exercise experts as a shoulder-strengthening tool.

Physical therapists often see injuries or natural disease related to the shoulders. The gleno-humeral (GH) joint can become affected and deterioration can result. This condition typically involves the rotator cuff and can often cause extreme pain and immobility to the shoulder joint. Prescribed therapy in the way of isometric-type exercises or other physical activity that targets the affected area is typically recommended. The shoulder horn is a useful tool in shoulder rehabilitation, as it typically contours to fit the curves of the shoulders.

This contraption is made from a durably rugged steel, with a foam padding for the patient's comfort. It can weigh a substantial amount—however, it is designed for a non-impact effect. Some individuals construct their own device from materials found around the home. Typically, this might include a flexible band or belt. Shoulder horns, however, have a specific purpose and design.

The shoulder horn is available in various sizes to meet individual needs. These are generally determined by weight and height factors. Sizes that coincide with individual measurements are typically indicated on the packaging. As a general rule, the shoulder horn is available in a small, medium and large size. Availability in an extra large size can typically be found as well.

Any individual who plans on beginning a physical exercise program, whether intended for therapy purposes or for fitness, is advised to consult with a physician first. This will ensure the health of the individual and allow an assessment of ability factors or conditioning. Medical advice is recommended as a precaution.