Bird dogs are a great core exercise that improve core strength, stability, and overall coordination. They focus on the sides of your core, also known as your obliques. On your hands and knees slowly extend one arm and the opposite leg until fully flexed.

1. Start on your hands and knees.
2. Slowly extend one arm and the opposite leg until fully flexed.
3. Hold the position briefly.
4. Return to the starting position and switch sides.