One of the fringe benefits that has me taking fitness more seriously is a desire to improve my body image. Parkour has particularly attracted me because it's such an all-encompassing discipline: it increases flexibility, strength stamina, all that... but how good is it at toning muscles and things like that? Size isn't really what I'm after: if I was larger, I just think I'd look weird (I'd look like that big manservant the writer guy has after Alex cripples him in "A Clockwork Orange"), but it would be neat to have abs and all that. It may sound shallow, but self-image is very important to people, and the people in those parkour videos on Youtube usually have nice bodies. Does parkour cover this aspect of fitness, too?