To enhance your crescent lunge reach your hands up in the air and place your fingertips on the floor. Raise one leg up and softly place your foot behind you in a lunge. Reach down and grab your ISO-BOW and rise up contracting your core and keeping your back straight. Spread your ISO-BOW apart drawing your shoulder blades down on your back. Breathe deeply and hold this pose for five deep breaths. https://www.bullworker.com/product/iso-bow/