Prone YTI

1. Keep your chin tucked and head in line with the rest of your spine.
2. Tuck your tailbone under and use your abs to keep your ribs pulled down.
3. With your thumbs up, squeeze your shoulder blades together as you move your arms in the YTI motion.
4. Don’t jut your chin out, shrug your shoulders, allow your shoulders to roll forward, or arch your lower back.