Image
Muscle (agonist)
Action
Antagonist
Origin
Insertion
Erector Spinae
Trunk extension
Abdominal Group
Sacrum, ilium,
lumbar spine
Cervical
spine
Iliopsoas
Hip flexion
Hip extensors –
Gluteus Maximus
Front of lumbar
spine , Inside
ilium
Femur
Hip ExtensorGluteus Maximus
Image
Muscle (agonist)
Rhomboids
Latissimus Dorsi
Deltoid group
Frontal/anterior
Medial
Posterior
Hip extension, external
rotation of hip
Hip flexors - iliopsoas
Ilium, sacrum &
coccyx
femur
Action
Scapula adduction
Antagonist
Pectorals
Origin
C7 – T5
Insertion
Scapula
Adduction, extention &
internal rotation of
shoulder
Medial Deltoid
Sacrum, ilium,
lumbar spine,
lower thoracic
spine
Front of
humerus
Clavicle
Clavicle &
Spine of
scapula
Spine of
scapula
Humerus
Humerus
Posterior Deltoid
Shoulder flexion
Shoulder abduction
Latissimus Dorsi
Shoulder extension
Anterior Deltoid
Humerus
Abdominal Group
Rectus Abdominus
Obliques
(internal & external)
Transverse
Abdominis.
Trunk flexion
Erector Spinae
Pubis
Trunk rotation
Ilium
Compresses & supports
abdomen
Pubis & ribs &
linea alba
Ribs,
Sternum
Ribs
ilium