Instructions:
- 1Start in a low plank position with your body in a straight line.
- 2Engage your core and keep your back flat.
- 3Raise one leg into the air, keeping it straight.
- 4Lower it back down slowly.
- 5Repeat with the other leg.
Tips:
- Keep your hips stable during the movement.
- Control the motion - don't let momentum do the work.
- Tighten your abs throughout.
- Don't let your lower back sag.