The importance of hip internal rotation
from By Heidi Dawson
Hip joint internal rotation occurs when the femur rotates within the hip joint, toward the mid-line of the body. It also occurs in standing when the lower limb is fixed and the pelvis rotates. A "normal" value for hip internal rotation is 45 degrees, although few individuals get anywhere near that level of movement and a minimum of 35 degrees is considered sufficient for most people. Many people — runners, coaches and physical therapists — are aware of the need for sufficient hip extension during the gait cycle, in both walking and running.
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