by CamelNo.9 on August 31st, 2009, 3:29 am
because lower body strength, mainly in the legs, is built up naturally just by running and walking, it's the upper body that needs the most focus. I do push-ups and lift a 10-pound free weight maybe once or twice a week, fpr between a half-hour and a full hour. If I had a pull-up bar I'd do those, but in general, pull-ups and push-ups will have the most effect because many of the high-exertion movements in parkour (like lifting yourself onto a wall that you cat-leap onto, under-bars, and vaulting in general) use the same muscles that push-ups and pull-ups exercise, namely the biceps, triceps, and the back muscles (the latissimus dorsi and trapezius, primarily) do.
My favorite workout is performed at a playground at the elementary school down the road: I have a sequence of moves for getting from one side of the jungle gym to the other that my friend and I do over and over, as it works the muscles used and helps greatly my ability to do new jumps without as much hesitation when the motions are second nature.