**Sound of skipping record fuzz***
WHAT ARE YOUR GOALS?
In general, you should consider what you want to achieve. Do you want to be able to run long distances and do some Parkour as you go, or will you need to escape something so quickly that it will in all reality be about 3-5 minutes of intense movement? It's true, training distance will get you in shape for distance, but it will not help your explosive sprinting power. Sprinting, on the other hand, has been shown to not only help with -- you guessed it -- sprinting, but also to improve stamina/endurance. When you think about the movements in Parkour, they are explosive and powerful, thus sprinting is the better option, if you would need to choose one over the other. There was also something I read here or in a link posted here on APK about endurance training potentially hindering the building of explosive power, due to the formation of muscle (don't quote me on the details, look it up). Just look at marathoners vs. sprinters. Long slender muscles in marathoners are not going to give you explosive strength and speed. Anyway, use the search function in the fitness section and you'll find all the research from Chris Salvato and Steve Low primarily. You can also find some good examples of training schedules as well.