The skydiver position is when a baby lifts both arms up and backward while lying on their tummy. All babies do this occasionally—especially when they get excited or practice reaching for toys. This is completely normal! However, for some babies, this position becomes so dominant that it challenges their motor development. The backward pull becomes so strong that they struggle to keep their arms on the floor. This can delay belly crawling and hands-and-knees crawling because the arms and front si