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Muscles and Actions
torso, pelvis, thigh
Muscle | Action |
---|---|
Diaphragm | inspiration & expiration (seperates thoracic and abdominal cavities |
Serratus posterior | elevates ribs 2-5, depresses ribs 9-12 |
External intercostals | elevates ribs |
Internal intercostals | depresses ribs |
Quadratus Lumborum | elevation and anterior tilt of pelvis, lateral flexion and extension of the trunk (hip hiker) |
Iliosoas | hip flexion, adduction, lateral rotation, anterior pelvic tilt |
Transversus Abdominis | compresses contents of abdomen (puke muscle) |
Internal abdominal oblique | flexion, lateral flexion, ipsilateral rotation |
External abdominal Oblique | flexion, lateral flexion |
Rectus Abdominis | lateral flexion, posterior tilt of pelvis |
Gluteus Maximus | hip extension and lateral rotation, (upper fibers abduct/lower adduct), posterior tilt |
Gluteus Medius | hip abduction( anterior fibers flexion, med. rotation & Posterior fibers extension and lat. rotation |
Gluteus minimus | hip abduction, flexion, md. rotation |
6 deep lateral rotators (piriformis, obturator internus & externus, gemellus superior & inferior, quadratus femoris) | lateral rotation |
Pectineus (5 adductors) | adduction and anterior tilt |
Adductor Brevis (5 adductors) | adduction of hip, anterior tilt |
Adductor longus (5 adductors) | adduction of hip and anterior tilt |
adductor magnus (5 adductors) | adduction of hip |
Gracilis (5 adductors) | hip adduction, ant.tilt, knee flexion and md. rotation (2 jointed) |
Quads ( rectus femoris, vastus lateralis, vastus medialis, vastus intermedialis) | hip flexion, knee extension |
Hamstrings ( semimembranosus, semitendinosus,biceps femoris) | hip extension, knee flexion |
Sartorius | hip flexion, abduction and lateral rotation,<-(tailor position) knee flexion, anterior tilt |
Tensor Fascia Latae | hip flexion, medial rotation, abduction |