Which is an eccentric function of the sartorius?
A)restrains/slows dorsiflexion of the foot at the knee joint
B)restrains/slows medial rotation of the leg at the knee joint
C)restrains/slows medial rotation of the thigh at the hip joint
D)restrains/slows lateral rotation of the thigh at the hip joint

Question

Quizplus · Accepted Answer

The sartorius primarily acts as a hip flexor, abductor, and lateral rotator of the thigh. However, when the hip is extended and the knee is flexed, the sartorius becomes an eccentric restraint of medial rotation of the thigh at the hip joint. This is because the sartorius is a lateral rotator of the thigh and, when the knee is flexed, it pulls on the medial aspect of the knee joint, creating a medial rotation force at the hip joint. The sartorius eccentrically contracts to resist this medial rotation force and maintain the neutral position of the thigh.

Which Is an Eccentric Function of the Sartorius