The Hip Flashcards
pelvic girdle joints
acetabulofemoral joint - ball and socket
sacroiliac joint - gliding
pubic symphysis - slightly moveable
pelvic girdle bones
sacrum
lumbar 5
pubic symphysis
hip flexors
iliopsoas,
rectus femoris,
sartorius,
tensor fascia latae
hip extensors
gluteus maximus
hamstring - everything except short head of bicep femoris
iliopsoas
O = T12-L5. & iliac fossa
I = lesser trochanter
rectus femoris
O = AIIS
I = tibial tuberosity
sartorius
O = ASIS
I = anteromedial tibia
tensor fascia latae
O = ASIS
I = iliotibial band
pectineus
O = pubis
I = medial femur
adduction
gluteus maximus
O = posterior ilium surface and coccyx
I = greater trochanter and it band
hip adductors
add brevis
add longs
add Magnus
pectineus
gracilis
add brevis
add longs
add Magnus
O = pubis
I = linea aspera
pectineus
O = anterior pubis
I = inferior to lesser trochanter
gracilis
O = pubis
I = anteromedial tibia
abductors
gluteus medius and minimus
gluteus medius and minimus
O = lateral ilium below crest
I = greater trochanter
hip external rotators
6 deep external rotators
considered as one
gluteus maximus
hip internal rotators
no primary muscle
glut min and med, TFL ST SM gracilis
lombards paradox requirements
sit to stand
hip ext and knee ext
rectus femoris agonistic for knee ext but antagonist for hip ext
hamstring agonist for hip extension but antagonist for knee extension
lombards paradox description
extensor muscle at knee and hip have greater level arm than flexors
quads activated to greater extent
only RF of quads span hip
means there is a net extensor torque at the knee and net extensor torque at hip
femoroacetabular impingement
abnormal growth of femur or acetabulum
causes butting together
damages cartilage
risk factors for femoroacetabular impingement
osteoarthritis
young athletic groups
iliotibial band syndrome
if iliotibial band is tight it can cause inflammation on lateral aspects of knee
friction between band and lateral ocndylle of femur
iliotibial band
fibrous reinforcement of the TFL
hamstring strain
most common ink football
91% non contact
bicep femoris
risk factor for HSI
previous strain
fatigue
strength imbalance
poor flexibility
