Pilates Anatomy Stott Study Guide Rated A+

vastus lateralis actions (2) {Ans: actions 1. draws patella laterally 2. extends leg at knee}subscapularis - insertion {Ans: 1. Lesser tubercle of humerus 2. shoulder capsule}What are the 2 main groups of muscles in anterior posterior opposition with the pelvis? UPWARD PULL? (AB ) {Ans: 1. Erector Spinae, Quadratus Lumborum + Other posterior back muscles attached to posterior part of pelvis (Posteriorly) 2. Anterior abdominals (Rectus abdominis with its insertion on pubic symphysis and External Obliques with attachment on iliac crest) (AnteriorlY)}extension {Ans: - brings bones away from each other, -straightens or opening joint. (Ex. elbow away from shoulder) -sagittal plane - Exceptions: Hip and Shoulder Joints - where a return movement of humerus/ femur downward is considered extension}piriformis actions (2) LAF {Ans: actions 1. Lateral Rotation 2. Abduction of Flexed Hip}piriformis - origin - CAGS {Ans: origin 1. capsule of sacroiliac articulation 2. anterior sacral foramina - between and lateral to (anterior surface of sacrum) 3. greater sciatic foramen - margin of 4. sacrotuberous ligament}