The femoral nerve is one of the largest neural structures in the leg. Its branches supply sensation to the upper thigh and control the quadriceps muscle, which is responsible for straightening the knee. Femoral nerve impingement can produce various symptoms. Numbness, tingling and shooting pain into the leg (and sometimes into the groin area) is common.
Erik Dalton Blog
Ideal shoulder girdle balance requires that some muscles act as stabilizers and others as mobilizers, depending on joint position and movement required for the particular task. A perfect balance of mobilizers and stabilizers results in optimal alignment, or joint centration. Think of joint centration like the wheel on a car.