💪 Gluteus Maximus

Brian Lee

Summary

Origin

Coccyx
Edge of sacrum
Posterior iliac crest
Sacrotuberous adn sacroilian ligaments

Insertion

Iliotibial tract (upper fibers)
Gluteal tuberosity (lower fibers)

Actions

All fibers:

Extends the hip
Laterally rotates the hip
Abducts the hip

Lower fibers:

Adducts the hip

Examples

Albinus

Peter Paul Rubens, Example from Hale and Coyle

Study of Male Figure, Seen From Behind

Peter Paul Rubens
Hale and Coyle, p38

Symbol	Muscle
A	Gluteus maximus
B	Gluteus medius
C	Greater trochanter
D	Iliac crest
E	Posterior Superior Iliac Spine (PSIS)
F	Sacral triangle
G	Sacral framina
H	Top of coccyx
I	Split of the buttocks
J	Sacro-iliac joint
K	Lumbar vertebrae
L	“Strong cords” – erector spinae and alike? the text isn’t clear
M	C7
N	Thoracic vertebrae

References

Hale and Coyle, 2000 p38, 40, 44, 48-49, 50, 252, 258, 259, 260