Lesson
Trunk Muscles
Action | Flexion | Extension | Lateral Flexion | Rotation |
Muscles | -Rectus Abdominus -External Oblique -Internal Oblique -Psoas Minor -Psoas Major | -Quadratus Lumborum -Multifidus -Semispinalis -Erector Spinae (comprising 3 columns: Iliocostalis, Longissimus & Spinalis) -Interspinales | -Quadratus Lumborum -Intertransversarii -External Oblique -Internal Oblique -Rectus Abdominus -Erector Spinae -Multifidus | -Multifidus -Rotatores -Semispinalis -Internal Oblique -External Oblique |