outro...
Keep a slightly hollow chest (shoulders curved forward like a crunch).
~ Do not arch backward.
~ Do not put your arms on, or behind, your butt.
~ Some people tuck the legs with their arms under their knees.
~ Some people tuck with their arms around their legs.
~ Do not arch backward.
~ Do not put your arms on, or behind, your butt.
~ Some people tuck the legs with their arms under their knees.
~ Some people tuck with their arms around their legs.