First, what is parkour? :)
I agree with what you're saying and like everything, there are levels. Overall with my clients, I am for functional fitness but when I have someone long term, there's no way to avoid doing isolation/motion specific stuff. I do think that my programs for my in-home clients tend to be better suited to real world application because I don't have the "luxury" of machines and dedicated space. I have to get creative and often times, things I come up with mimic movements that happen in real life. For example, I often pair a standing exercise with a floor exercise. Clients are usually not fond of getting up and down repeatedly but I usually hear something about how they've noticed getting up is so much easier than it used to be.
That being said, even though I work out at home, my workouts are essentially gym-workouts. I do cardio on the elliptical and I watch my trashy TV while doing so. :) While I do love the idea of getting out there and doing what you love, I think it's a matter of convenience and possibility. I make it as easy as possible for myself to work out.
Parkour is amazing.
As I was typing this, I remembered having this conversation with Jen, probably years ago, about this.
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KarlaCommunity Moderator, iVillage.com