- Running, jogging and walking are excellent forms of exercise but they subject the body to considerable stress.
- Each time a runner’s foot hits the ground it generates forces equivalent to at least three and a half times body weight.
- This force is absorbed by the foot and skeleton and transmitted to enable forward movement.
- The commonest types of injury resulting from the repeated loading (stress and strain) of body tissues such as tendon and muscle.
- Micro trauma to the structure and tissues of joint ligament fascial and muscles accumulates at a level that is undetected until an injury or failure of the tissue occurs.
- Pain and inflammation can be the result of the damage and may give rise to weakness in the tissue throughout the kinetic chain; this prevents the body from managing its proper function.
- Repeated stress and strain is often due to poor orthokinetic alignment that can be present throughout the structure, arising with, or as a direct result of foot compensation or spinal compensation vertebral subluxation.
- An example of poor alignment is highlighted in the runner with weak gluteal (buttock) muscles and foot pronation.
- The upper leg can drift in towards the opposite leg when taking bodyweight in single stance (on one leg) with a drop in height of the opposite hip.
- During running this muscle weakness, associated with the foot pronation, can cause a detrimental misalignment in the lower leg.
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