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
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