This may be a contraversial topic seeing as so many people here are into long distance endurance type exercises but I was pondering on which is a more natural form of exercise for humans - medium intensity exercise such as jogging or high intensity exercises such as sprinting.
I like to think things through logically and evolution wise I think we would all agree that our bodies are designed to eat sweet fruits. As far as excercise is concerned it would seem to me that there would be far more need for us to sprint than to jog. The only reason I could see for us needing to jog is to hunt down pray in a persistant hunting type way and for obvious reasons I don't believe we would evolve this way. However I would see the need for sprinting to avoid predators. If you compare us to other primates you will find that they never jog or move at a for long durations at medium intensity - what would be the point for them? It's either explosive movements or a more sedate walking pace. I realize that humans were more nomadic and we'd have walked great distances but I don't think we would have jogged when we would've been travelling with large families with children of various ages.
Physiologically sprinting has been shown to give us many benefits, the most notable being the production of growth hormone which helps to build muscle, burn fat, tighten skin, repair tissue and keep us young (human growth hormone levels slowly decrease when we hit 30). Jogging and low intensity excerises release very little growth hormone. Is there an evolutionary reason that our bodies would do this?
Are there any other animals that physically move at medium intensity for long periods? Jogging is not prolific in nature! I'm sure you guys could think of loads though! I'm not saying that jogging or medium intensity exercises aren't great but my time as an 80/10/10 follower make me try to find what is optimum for humans and what we are designed to do.
I would like to know anybodies opinions as I think it's an interesting topic. I am certainly no expert this is just a few thoughts I've had. And by the way I've read Born to Run so I'm aware there are opposing viewpoints!