The
Training Zone

Understanding Chronic Knee Pain Part 2 - The 'What'

by Jennifer Lewis, Performance Physical Therapist - Athletes' Performance

In Part 1 - The 'Why' we examined the various causes of knee pain and highlighted the relationship between the knee, hip and trunk. When combined, these elements make up the lower extremity kinetic chain. In any sport activity it is essential that the muscles of these regions work together in a coordinated effort in order to appropriately produce and transfer energy from the ground to the body.

Energy production begins distally in the feet and is transferred through the knees to the hip and trunk. At this point, if the athlete’s desired action is running, the energy is transferred to the contra-lateral limb and returned to the ground as the athlete propels himself forward. If the athlete is an overhead thrower the energy is transferred up the kinetic chain as the distal feet remain in contact with the ground and the gluteal, back extensor and abdominal muscles amplify the force adding to the movement with a significant rotational torque.

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