- Start in an elbow plank.
- Keep your back flat — don't let it curve. Picture your body as a long, straight board. Contract your abs to keep yourself up and prevent your bottom from sticking up. Remember to keep your belly button pulled in.
- With control, slowly tap your left knee to the ground without moving your hips. Lift your left knee back up, returning to the starting position. Repeat the same movement with the right leg. This completes one rep.
- Complete 10 reps.
Image Source: POPSUGAR Photography / Tamara Pridgett