This exercise will improve stability throughout your spine.

Start by lying on your back with your knees bent. Take a deep inhalation through your nose passing the air down into your lower rib cage. As you exhale fully try to pull everything up and in to engage the abdominals. Lift both legs to the tabletop position. Alternate tapping one heel at a time to the floor while maintaining stability throughout your spine. And, don’t forget to keep breathing throughout the exercise. Repeat 20 times.