Cat - Cow

Purpose:  In a quadruped position tightening the abdominals, and attempt to bring your hips to your head while rounding the back up similar to a cat. 

Instruction: Mobilize the thoracic spine, while contracting the abdominals. Helps improve range of motion in the back and strengthen the core.

Common Errors: Not contracting the abdominals or leaving the head up, thus not rounding the back.