1. Get into the straight arm front plank position. Then bring your left knee up to the right side of your chest. Repeat with your other knee. This is one rep.
2. Make sure to keep your back straight, and your hips in the same position. Don’t allow your body to move up and down as you do the exercise.
3. Make sure to keep your shoulder position strong and stable as you do the exercise. Don’t allow your shoulders to hunch up.