Though the true origins of Parkour are disputed, it is widely believed to have been founded in the late 1980s by French Athlete David Belle. A french term for "the art of movement", Parkour is the process of moving from point A to point B as swiftly, efficiently, and gracefully as possible. Often associated with, but not restricted to, urban environments, Parkour is concerned with using ones entire body to transfer momentum in order to maintain the highest possible average speed when moving. The original philosophy behind the physical activity was embodied by David Belles group, the Yamakasi's (a congo term meaning strong spirit, strong body, and endurance), and has since spread to be a widely practiced discipline.[cit] and [cit]