A great deal of jumping is required to adequately perform parkour. As such, any traceur should be willing to add any tips and tricks to their arsenal on jumping ability. While a previous article has commented on jump height and length through exercise, there is a method to increase jump distance that is based solely upon technique:

Lean forwards.

I thought that an optimum angle of take off for the most distance would be forty-five degrees – a combination of height and distance, but I was wrong. A couple guys have extensively studies the long jump and have found some interesting results. The optimum angle for take off is between twenty and thirty degrees!

CHECK IT OUT

Some additional thoughts.
I stumbled upon this article through a friend on an online parkour community who placed it under the heading of “How to improve your precision”. Some interesting debate arose and a fair few traceurs decided that this will not increase your precision ability. Their arguments being quite simple: no-one will think about this in a real life situation, only when posed in practice with considerable time to think and contemplate the jump; more than distance is required for a precision, a traceur requires an element of control among other things that this technique may diminish; finally they argued that plyometrics and leg strength training would do much more.

The opposing side argued in response to these. No-one in a real life situation would consider regular parkour moves with efficiency; the moves are imposed upon them through training, as can this technique. The added distance does contribute to ability though, and control can be improved on outside of this field – it is not dependent on distance. Plyometrics and strength training will increase your ability, but the technique identified will help to juice the most out of that ability.

Obviously you can see my bias; I feel that any little bits that can work towards improvement are worthy of consideration and while the article may have required a different title than chosen, the facts are legitimate and the overall can be applied to precisions regardless.