Handbalance acts

A handstand is the act of standing erect, but upside down, with one's hands on the ground and feet in the air. The basic handstand has legs extended vertically with no knee bend, hands roughly shoulder-width apart, and head facing forward, but there are numerous variations. Performing a handstand requires good upper body strength.
Handstands are performed in many athletic activities, including breakdance, fitness competitions, circus acrobatics, cheerleading, and martial arts like Capoeira.
Source: http://en.wikipedia.org