Hip Muscles

Anterior Muscles

Sartorius

O –ASIS

I –Proximal anteromedial aspect of tibial condyle

N – Femoral

F –Hip FLx, ABD, ER

Knee Flx & medial rotation

Can palpate off ASIS

but difficult to palpate in medium to heavy legged persons

Rectus Femoris

O –AIIS

I –Tibial tuberosity

N –Femoral

F –Knee EXT & Hip FLX

Any place over anterior thigh

Tensor Fascia Lata

O –Iliac crest

I –IT band and then into the knee via Gerdy’s tubercle

N –Superior Gluteal

F –Hip Flx, ABD, IRAssist with knee Flx

Slightly in front of greater

trochanter

Psoas MajorO –

Transverse processes T12-L5Intervertebral Disks T12-L5

I –Lesser trochanter of femur

N –Lumbar Plexus (L1-L4)

F –Hip Flex & ER

Cannot be palpated

unless rectus abdominus

is relaxed

IliacusO –

Illiac Fossa

I –Lesser trochanter

N –Femoral

F – Hip Flx & ERAssist with Hip ADD

Cannot be palpated

unless rectus abdominus is

relaxed

Lateral Muscles

Gluteus Medius

O –External surface of ilium between anterior & posterior gluteal lines

I –greater trochanter

N –Superior Gluteal

F –Hip ABD, Anterior fibers – IR & FlxPosterior fibers -- ER and EXT

Slightly in front

and above the

greater trochanter

Gluteus Minimus

O –External surface of ilium between anterior and inferior lines

I –Greater trochanter

N –Superior Gluteal

F –Hip ABD, IR & Flx

Cannot be

palpated

Posterior Muscles

Gluteus Maximus

O –Posterior gluteal line of iliumPosterior surface of lower sacrumCoccyx

I –IT band and gluteal tuberosity

N –Inferior Gluteal

F –Hip EXT & ERUpper fibers – Hip ABDLower Fibers – Hip ADD

Wide area on

posterior pelvis

Semitendinosus

O –Ishial Tuberosity

I –Proximal medial surface of tibia

N –Sciatic (tibial)

F –Knee flexion

Assists with hip EXT

Near the knee on posteromedial

side

Semimembranosus

O –Ishial tuberosity

I –Posteromedial apsect of medial tibial condyleMedial meniscus

N –Sciatic (tibial branch)

F –Knee FLXAssists with hip EXT

Largely covered by

other muscles, can palpate

tendon on posteromedial aspect of tibia

Biceps FemorisO –

Long HeadIshial tuberosity

Short HeadLinea Aspera

I fibular head

N –Long Head – Sciatic (tibial)Short Head – Sciatic (Peroneal)

F –Knee FLX & Hip EXT

Posterolateral side of distal knee

Deep Hip Rotators

Piriformis

O –Sacrum

I –greater trochanter

N – Sacral (L5-S2)

F –Hip ER

Gemellus Superior

O –Anterior sacrum

Posterior portions of ishium

I –greater trochanter

N – Sacral (L5-S2)

F –Hip ER

Obturator Internus

O –Anterior Ishium

I –Greater trochanter

N – Sacral (L4-L5, S1-S2)

F –Hip ER

Gemellus Inferior

O –Anterior sacrumPosterior portions of ishiumObturator foramen

I –Superior and poster portions of greater trochanter

N – Sacral (L4-L5, S1-S2)

F –Hip ER

Obturator Externus

O –Posterior portions of ishium

I –Greater trochanter

N – Obturator

F –Hip ER

Quadratus Femoris

O –Posterior portions of ishium

I –Greater trochanter

N – Sacral (L4 -S1)

F –Hip ER

Medial Muscles

Pectineus

O –Superior ramus of pubis

I –Pectineal line of femur

N –Femoral

F –Hip ADD

Angle between the pubic bone and femur

Adductor Brevis

O –Body & Inferior pubic ramus

I –Distal 2/3 of pectineal lineProximal ½ of medial lip of linea aspera

N – Obturator

F –Hip ADD

Cannot be palpated

Adductor Longus

O –Anterior pubis just below its crest

I –Middle 1/3 of medial lip of linea aspera

N –Obturator

F –Hip ADD

Just below pubic bone on medial

side

Adductor MagnusO –

Inferior pubic ramusIshium ramusIshial tuberosity

I –Line asperaAdductor tubercleMedial supracondylar line

N –Anterior Portion --Obturator Posterior Portion – Sciatic (Tibial)

F –Hip ADDAnterior Portion – Hip FlxPosterior Portion – Hip EXT

Posteromedial surface of

thigh

Gracilis

O –Inferior ½ pubic symphysisMedial margin of inferior pubic ramus

I –Medial surface of proximal tibia

N –Obturator

F –Hip ADDAssist knee Flx & IR

Medial side of thigh 2-3

inches below pubic bone