Arnold's charismatic performance in Pumping Iron transformed bodybuilding from an obscure, misunderstood subculture into a mainstream athletic pursuit.

This wrist rotation allows the lifter to engage all three heads of the deltoid muscle, providing a more complete shoulder workout than a standard press.

As Chairman of the President's Council on Physical Fitness under George H.W. Bush, he advocated fiercely for daily physical education for children.

Frustrated that his calves lagged behind his massive upper body, he exposed them to invite constant criticism and motivate himself to train them harder.