Question

Consider moving first from a seated position to a standing position and second moving from standing to slowly lower to sitting. Focusing on hip/pelvis analysis for these questions:

a) When you move from sitting to a full standing position, what motion is occurring at the hip?
a)Flexion (hips bent) and Eccentric
b)Extension (hips straight) and Concentric
c)Extension (hips straight) and Eccentric
d)Flexion (hips bent) and Concentric

Answer 1

Moving from a seated to a standing position involves hip extension and concentric muscular action as the hip-extending muscles actively shorten.

Step-by-step explanation:

When you move from a sitting to a full standing position, the motion occurring at the hip is extension and the muscular action is concentric. This movement involves straightening the hip from a bent position, which requires the muscles that perform hip extension to actively shorten as they generate force, causing you to stand upright from a seated position. The muscles responsible for this movement include the gluteus maximus, hamstrings, and others at the posterior side of the hip.