Believe it or not, until recently, Buddhist nuns in the Himalayan region weren't allowed to hold leadership positions, or even exercise. That changed when the Drupka order instituted a new regimen for nuns that includes physical training, martial arts, and cycling. This is due to their spiritual leader, Gyalwang Drukpa, who has been working against patriarchy in Buddhism. Read more about the Drupka Kung Fu Nuns at Kottke.