Acrobatics (from Ancient Greek ἀκροβατέω, akrobateo, "walk on tiptoe, strut") is the performance of extraordinary human feats of balance, agility, and motor coordination. It can be found in many of the performing arts, sporting events, and martial arts. Acrobatics is most often associated with activities that make extensive use of gymnastic elements, such as acro dance, circus, and gymnastics, but many other athletic activities—such as ballet, slacklining and diving—may also employ acrobatics. Although acrobatics is most commonly associated with human body performance, it may also apply to other types of performance, such as aerobatics.