UNM DPT MUSCLES OF THE HIP COMPLEX

what is the primary muscles of flexion?

iliopsoas

what are the secondary muscles of flexion

rectus femoris

TFL

sartorius

what is the primary muscle of extension

glute max

what are the secondary muscles of extension

semitendinosus

semimembranosus

biceps femoris

( hamstrings)

what is the primary muscle of abduction

glute medius

what is the primary muscle of adduction

adductor magnus

what are the secondary muscles of abduction

glute min

TFL

what are the secondary muscles of adduction

pectineus

adductor longus

adductor brevis

gracilis

obturator externus

what are the primary muscles of medial rotation

trick question there are none

what are the secondary muscles of medial rotation

TFL

glute min

glute med

what are the primary muscles of lateral rotation

glute max

piriformis

what are the secondary muscles of lateral rotation

quadratus femoris

obturator externus and internus

gemellus superior and inferior

sartorius

what muscle has the ability to produce anterior tilt the pelvis

iliopsoas

what is the two joint muscle of the anterior compartment of the hip that crosses the knee and the hip joint

rectus femoris

at what knee & hip position is the rectus femoris actively insufficient

during knee extension and hip flexion

what is the sartorius’ most important function

to flex the knee and hip simultaneously

what movement of the TFL is dependent on hip flexion

hip abduction

what does the iliotibial band assist with

relieving some tensile stresses during weightbearing

what is snapping hip syndrome

the iliotibial band sliding anteroposterior across the greater trochanter

what knee position makes the gracilis an active hip flexor

during knee extension

with excessive anteversion of the femoral head what do the adductor brevis, pectineus, and middle adductor magnus turn into

lateral rotators

what knee & hip position can cause the hamstring to be actively insufficient

during hip extension and knee flexion

how do the glute med and min work together

to abduct the femur

to stabilize the pelvis in unilateral stance

the weakness of what muscle can cause over use injuries of the lower extremity

glute med

what lateral rotator can contribute to sciatic pain

piriformis

what lateral rotators do not have diminished moment arms with increased hip joint flexion

obturator externus

quadratus femoris

what are the more consistent medial rotators of the hip joint

anterior portion of glute med & min

TFL

what muscles of the hip joint can also act as medial rotators

the adductors

what motion of the hip increases medial rotation torque

hip flexion

what is the adductor that is the exception of medial rotation contribution

the gracilis