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PEDS100 Chapter Notes -Anterior Superior Iliac Spine, Tensor Fasciae Latae Muscle, Gluteus Medius Muscle


Department
Physical Education and Sport
Course Code
PEDS100
Professor
Gail Amort- Larson

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Muscles of Pelvic girdle and Lower limbs
-muscles that move the thigh, muscles that move the leg, muscles that move the foot
and toes
Muscles that move the Thigh
-muscles that have action lines that pass posterior to axis of hip joint are extensors
of hip (hamstrings)
-muscles that have action lines that pass anterior to axis of hip joint are flexors of hip
(iliopsoas group, anterior fibers of gluteus medius)
-muscles that have action lines that pass medial to axis of hip joint are adductors of
hip (adductor longus muscle) May also produce medial rotation
-muscles that have action lines that pass lateral to axis of hip joint are abductors of
hip (gluteus medius, gluteus minimus) May also produce lateral rotation
Gluteal Group (posterior)
Gluteus maximus:
O: Iliac crest, posterior gluteal line, lateral surface of ilium;sacrum, coccyx,
thoracolumbar fascia
I: Illiotibial tract(IT band, band of collagen fibers, extend along lateral surface of
thigh, inserts on tibia. Lateral support for knee), gluteal tuberosity of femur
A: Extension, lateral rotation at hip. Helps stabilize extended knee. Superior fibers
abduction at hip
Gluteus medius: palpable, important in walking
O: Anterior iliac crest, lateral surface of ilium between posterior and anterior gluteal
lines
I: Greater trochanter of femur
A: Abduction and medial rotation at hip
Gluteus minimus: not palpable, important in walking
O: Lateral surface of ilium between inferior and anterior gluteal lines
I: Greater trochanter of femur
A: Abduction and medial rotation at hip
Tensor fasciae latae: along with gluteus maximus only muscles that insert on IT
band (Palpable)
O: Iliac crest and lateral surface of anterior superior iliac spine
I: Illiotibial tract
A: Abduction, medial rotation at hip. Extension, lateral rotation at knee. Tenses
fasciae latae (laterally supports knee)
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