What do hunchback and shelf butt have in common?
They’re actually extreme variations found in today’s standing posture focus: The Kyphosis Lordosis Posture.
We can actually break this one down into 2 different pieces: Kyphosis (rounded upper back) and Lordosis (extremely curved lower back). You may have one or both of these components, which you’ll recognize by the rounded upper back or a protruding abdomen and glutes.