Posterior views of the deep lateral rotator group (including the piriformis)

Muscles of the Pelvis

Pelvic musculature: 1. cross the LS joint onto the trunk 2. cross the hip joint onto the thigh/leg 3. pelvic floor muscles located wholly within the pelvis

Criss-Cross Pilates mat exercise

Biomechanics of the Pilates Mat Abdominal Series

5 Pilates Mat Abdominal Series exercises: Single Leg Stretch, Double Leg Stretch, Single Straight Leg Stretch, Double Straight Leg Stretch, & Criss-Cross.