Rotator Cuff Tendon Exercise, the Key to Healing Naturally

rotator cuff tendonBy Steve Kaiser

Rotator cuff tendon is a sturdy band of tissue that connects muscle to bone like any tendon. It is a strong, sinuous substance that is able to withstand tension. A tendon works with its muscle to exert a pulling force. Frequently what leads to a rotator cuff injury, is over use of the tendon.

The cuff has eight distinct tendons. There are four muscles and each is connected at both ends by tendons. It is where each of the tendons attach to the Humeral Head of the upper arm that they form the “cuff”. Regularly rotator cuff injury symptoms are focused upon this area.

Tendon structure

Tendons are made up of in excess of 80% collagen. A tendon is composed of parallel collagen fibres. In fact collagen makes up approximately 86% of the dry weight of a tendon. It is the properties of collagen that provides an explanation of tendon injury and treatment.

So far 29 different types of collagen have been identified within the human body.In a rotator cuff tendon the collagen is made up of approximately 97-98% type 1 collagen. Collagen is not one substance; it is a group of naturally occurring proteins. In the natural world, it is found exclusively in animals, particularly in the flesh and connective tissues of mammals. Collagen is the most commonly occurring protein in mammals. It makes up approximately 25% to 35% of the bodies protein content.

The collagen molecules are grouped together to form fibrils A collagen molecule is approximately 300 nm long and 1-2 nm wide. In tendons, the fibrils then grouped together to form fascicles, which are about 10 mm in length with a diameter of 50-300 μm.

Finally the fascicles group together into a tendon fibre with a diameter of 100-500 μm. Groups of fascicles are surrounded by the epitendon and peritendon to form the actual tendon itself.

Further tendon key facts

1. The tendons are known to have a very poor blood supply. This means that oxygen and nutrient provision is poor. The consequence is that rotator cuff torn tendons take an extended period to heal.

2. The tendons are believed to contain no nerve fibres. Nerve endings related to the tendons are to be found in the surrounding epi and peri tendon.

3. Tendon length is purely genetic. It can not be increased, or decreased, in response to external stimulus.

4. The length of any tendon changes from one person to the next. Tendon length is the most significant factor in discerning muscle size.

Healing a tendon

It has been established that exercises for a torn rotator cuff tendon will encourage the development of healthy new tendon. Exercise and stretching during the initial inflammatory phase can adversely affect healing. Care should, therefore, be taken within the first few days following an injury.

After this initial phase exercise is the answer to a successful recovery. Exercise and stretching following an acute injury promotes the formation of new, healthy collagen molecules. This leads to increased diameter and strength of the healed tendons.

This represents a major improvement from the previous thoughts when a damaged rotator cuff tendon was frequently immobilised after injury.

About the Author

Steve Kaiser has used exercise to treat his own rotator cuff symptoms. Learn how you could do the same at Rotator Cuff Therapy Exercises (rotator-cuff-therapy-exercises.com). His new book “Natural Rotator Cuff Healing” a comprehensive guide to rotator cuff treatment is available for immediate download.

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