Which is an eccentric function at the hip joint of the psoas major?
A)restrains/slows flexion of the thigh
B)restrains/slows lateral rotation of the thigh
C)restrains/slows elevation of the same-side pelvis
D)restrains/slows posterior tilt of the pelvis

Question

Quizplus · Accepted Answer

The psoas major acts as an eccentric muscle during the posterior tilt of the pelvis, which means it slowly restrains or slows down this movement. As the psoas major contracts, it also helps initiate the posterior tilt of the pelvis, but only eccentrically controls the movement. Therefore, the correct answer is D - restrains/slows posterior tilt of the pelvis. None of the other options relate to eccentric function of the psoas major at the hip joint.

Which Is an Eccentric Function at the Hip Joint of the Psoas