What classical convention is reflected in michelangelo's david?

The statue is in a contrapposto pose. David is considered a Renaissance masterpiece, created in 1501-1504 by Michelangelo. This marble statue is depicting the biblical figure of David. Contrapposto is an Italian term, meaning counterpoise. It is a term that describes a human body standing with one leg and the other leg brought forward. This pose puts the shoulders on a different axis from the hips, creating an s-curve. Contrapposto is a distinctive characteristic of classical sculpture, also seen in Renaissance art.

What are the statements : ) ?