HOW: Start by lying on your back with your knees bent and feet flat on the ground. Extend your arms out and over your chest with your palms together. Push into the ground and lift your hips up as high as you can. From here, keep your hips up as you lift one knee up towards your chest and hold it for a couple of seconds. Alternate marching one knee at a time for the prescribed amount of reps.
FEEL: You should feel your core and hip muscles working.
COMPENSATION: Keep your hips parallel and level with the ground while in the bridge position. Keep your hips as high as you can during the march.