Muscles: erector spinae, gluteus maximus, hamstrings, deep lateral rotators, triceps, abdominals, scapula stabilizers
Start: Lay in a prone position on the Arc Barrel with pelvis at apex, legs long, abducted and laterally rotated. Extend the hips with hands on the Mat and torso pressed up to extend spine.
Exhale: Maintain shape and flex elbows to rock forward, reaching legs up and back
Inhale: Rock back up.
Repeat 5 times.