What are the components of the Iliocostalis muscle?
Cervicis, thoracis, lumborum
What are the components of the Longissimus muscle?
Capitis, cervicis, thoracis
What are the actions of the Erector Spinae (ES) muscles?
Trunk extension, lateral flexion, ipsilateral rotation
List the components of the Transversospinalis muscle group.
- Semispinalis capitis
- Semispinalis cervicis
- Semispinalis thoracis
- Multifidus
- Rotatores
What are the actions of the Transversospinalis muscles?
Trunk extension, lateral flexion, contralateral rotation
What are the segmental muscles and their actions?
Span across 1 vertebral and local stabilizers; actions include trunk extension; only spinalis , lateral flexion + ipsilateral rotation; transversari
What movers are the anterior abdominals
global, except TA
What are the actions of the anterior abdominal muscles?
Trunk flexion, lateral flexion, ipsilateral rotation (IO), contralateral rotation (EO)
What type of movements do the EO, IO, and RA perform?
Coronal plane movements around the sagittal axis; ipsilateral and unilateral contraction
Which muscles contribute to trunk extension?
- Quadratus Lumborum (QL)
- Transversospinalis
- Erector Spinae (ES)
- Interspinalis
What is the movement classification for trunk flexion and the actions
Sagittal plane movement around the transverse axis; bilateral contraction
Which muscles are involved in trunk rotation? and which muscles do ipsilateral or contralateral rotation
- Ipsilateral rotation: Internal Oblique (IO), Iliocostalis, Longissimus capitis, Intertransversarii
- Contralateral rotation: External Oblique (EO), Transversospinalis
Describe the pelvic lift in the coronal plane.
Unilateral; involves ipsilateral hip adduction, contralateral hip abduction, and ipsilateral lumbar vertebrae lateral flexion
Which muscles are active during pelvic lift?
- Quadratus Lumborum (QL)
- Internal Oblique (IO)
- External Oblique (EO)
What occurs during pelvic drop?
Contralateral hip adduction, ipsilateral hip abduction, contralateral lumbar vertebrae lateral flexion
What is the effect of anterior pelvic tilt?
Bilateral hip flexion, lumbar vertebrae extension
Which muscles are involved in anterior pelvic tilt?
- Lumbar erector spinae
- Hip flexors
What happens during posterior pelvic tilt?
Reduces lumbar lordosis, compresses lumbar anterior articular disc, tightens posterior fibers of annulus fibrosis
What actions occur during pelvic rotation in the transverse plane?
Ipsilateral hip medial rotation, contralateral hip lateral rotation, contralateral trunk rotation
Which muscles are involved in ipsilateral pelvic rotation?
- Internal Oblique (IO)
- Quadratus Lumborum (QL)
- External Oblique (EO) (contralateral)
