Muscles contributing to the same function
Contents
FLEXION
LATERAL FLEXION
- Erector Spinae
- Iliocostalis
- Longissimus
- Multifidus
- Psoas Major
- Rectus Abdominis (secondary function)
- Obliquus Externus
- Obliquus Internus
- Quadratus Lumborum
- Intertransversarii
- Levatores Costarum (secondary function)
IPSILATERAL ROTATION
- Obliquus Internus
- Erector Spinae
- Iliocostalis
- Longissimus
- Spinalis
- Deltoideus (secondary function)
- Pectoralis major (secondary function)
EXTENSION
- Erector Spinae
- Iliocostalis
- Longissimus
- Spinalis
- Transversospinalis
- Semispinalis
- Multifidus
- Rotatores
- Quadratus Lumborum
- Trapezius (middle and lower) – secondary function
- Interspinales
- Levatores Costarum (secondary function)
CONTRALATERAL ROTATION
- Obliquus Externus
- Transversospinalis
- Semispinalis
- Multifidus
- Rotatores
- Psoas Major (secondary function)
- Rhomboideus Major (secondary function)
- Rhomboideus Minor (secondary function)
- Levatores Costarum (secondary function)
- Deltoideus (secondary function)
- Latissimus dorsi (secondary function)