HOW: Loop a band around both of your feet. Get into the push-up/plank position with your hands on the ground underneath your shoulders and toes pushing into the ground keeping your body in a straight line. From here, keep your back flat as you alternate bringing one knee up to your chest and back to the starting position.
FEEL: You should feel your core, hip flexor, and shoulder muscles working.
COMPENSATION: Don’t let your hips drop down, keep your core and shoulder muscles engaged as you alternate driving your knee up