Both, definitely. I do parkour regularly; I can reliably run (or walk backwards) on a 7cm wide beam, and am practicing rolls. I lift weights once per week and will move to twice weekly if I want substantially more arm strength than I have now. I also hike often. I have made large gains in physical fitness; as a kid I was always near the slowest of my peers, now I am one of the fastest runners in my laser tag club.
Parkour! I do it too, and Daniel Ilabaca is definitely one of my heroes.
If I could say just one thing about parkour, I would say that it's not about taking thoughtless risks (linked for what he says after the jump), and not even necessarily about taking calculated ones. I personally (try to) operate under a strict maxim to never attempt any movement where I'm not trained to compensate for every possible way of messing up.
I never climb anything that I can't fall off safely. Etc. This entails not just focusing on mastering the cool techniques, but also mast...
This is the fifth bimonthly What Are You Working On? thread. Previous threads are here. So here's the question:
What are you working on?
Here are some guidelines: