Overuse is a result of the cumulative affect of repetitive stress on anatomical structures, such as the shoulder. Overuse can be a result of trauma to any of the following in any combination: muscle, tendons, cartilage, ligaments, bursae, fascia, and bone.
Interactions between individual and extrinsic factors determine the risk of overuse. Muscle weakness, joint laxity, inflexibility, misaligned bones and limb asymmetries are all individual factors that increase the risk of overuse. Extrinsic factors include errors in training, such as exercise without recovery, excess load, or an imbalance in muscle groups.
Impingement is a result of the front edge of the shoulder blade or acromion, impinges upon the surface of the rota-tor cuff. This type of injury limits mobility and causes uncomfortable pain.
The uncomfortable pain may be due to what is called “bursitis”. Bursitis is an inflammation of the bursa lying over the rotator cuff. A partial tear in the supraspinatus, infraspinatus, or subscapularis, three of the connecting muscles of the rotator cuff, may cause impingement pain. It may also be referred to as acute reversible tendonitis, a common injury.
Excessive Athletic Exercises and Motion That Can Lead To Injury
Common athletic exercises that lead to injury are listed below:- Throwing a baseball
- Dead lifting weights
- Swinging a tennis racket
- Swinging a golf club
- Any repetitive overhead movement