In most of the first half of the book, the former three characters were running.
Get this … they ran for days and days and days in pursue of the captors. I remember finding this odd. I thought to myself: but that’s impossible, how can they run so much? I did not find the concept of elves, dwarfs, men that lived for 300 years, hobbits, orcs, or even Gollum odd. That fit very well in my head that craves for fantasy fiction. The running however refused to sit well.
Think back of the millions of years where humans walked and walked while foraging for food, ran at max speed and climbed a tree when escaping a predator, or chased an animal for dinner, played or slept in their free time and lifted heavy things as physical work. Sustained level of cardio for prolonged periods of time didn’t exist till very recently.
A case against chronic cardio
some good research links
Cardio and heart disease
Still not born to run
Did humans evolve to be long distance runners?