HOW: Start in the plank position with your forearms on the ground, flat back, and your toes pushing into the ground. Push into the ground lifting your hips up into a diagonal direction. Keep pushing into the ground with your shoulders and keep your knees straight as your hips come up. Once you feel your hips are as far up as you can comfortably go, return to the starting plank position.
FEEL: You should feel the muscles in your shoulder blade working. You should also feel a stretch in your hamstrings and low back at the top.
COMPENSATION: Keep your elbows below your shoulder and your forearms on the ground. Don’t bend your knees throughout the exercise.