How to do: Cobra

1. Lie down on your belly. Place your hands on the floor on either side of your chest.

2. Press the tops of your feet and your pubic bone down. Inhale and lift your chest off the floor.

3. Keep your elbows bent as you raise your chest.

4. Firm your shoulder blades against your back for maximum effect.

5. Reach back through your feet as you hold for a few counts.

6. Relax your chin down.

7. Exhale and release your chest down to the floor.