Often shortened to t'ai chi, taiji or tai chi in English usage, T'ai chi ch'uan or tàijíquán is an internal Chinese martial art practiced for both its defense training and its health benefits. Though originally conceived as a martial art, it is also typically practiced for a variety of other personal reasons: competitive wrestling in the format of Pushing Hands (Tui Shou), demonstration competitions, and achieving greater longevity. As a result, a multitude of training forms exist, both traditional and modern, which correspond to those aims with differing emphasis. Some training forms of t'ai chi ch'uan are especially known for being practiced with relatively slow movements.