Lie on your back with a resistance band around your feet.
With your legs hip width apart, there should be some tension in the band
Bring your legs up to table-top position with your hips and knees at 90 degrees.
Keeping a neutral spine, tighten your abdominal muscles and cross your arms over your chest.
Pushing with your heel, straighten one leg out in front of you, keeping the rest of your body completely still.
Control the movement as you bring this leg back to the table-top position, then repeat with your other leg.
