Not my thread - and I know I'm not the brightest bulb in the box -but what's the difference between burning carbs and buring fat - and is one better than the other - I kind of get the HIIT thing but...not the carbs vs fat..
No probs, I'll explain best I can...
When doing cardio of any form - the goal is to burn calories right?
But calories can be in the form mainly of carbs OR fat (and also protein [i think] but that would be bad if your breaking down muscle for energy!)
so when your burning calories - you obviously want to burn FAT - as that is a part of YOU. the carbs in your body are from the food you've ate before the gym perhaps - so maybe some oats.
Now if you run like a monkey and go crazy - you will burn mostly carbs for your energy - thats ok, but that fat on your body that your trying to get rid of isn't really being shifted????
So here's the important part - if you jog, rather than sprint - you'll burn less calories, but the majority of tho's cals will come from your fat store - so you will lose body weight (this is good!) if you run very fast for a period of time, you'll burn alot more cals than just running, but alot of tho's cals with come from carb stores - or even muscle if you haven't enough carb stores (haven't eaten enough pre- training)
the thing with HIIT is this - you may burn more carbs than actual fat DURING the peroid done (maybe anything from 15 mins - an hour?!) but this training causes the body to actually burn more fat over a longer period of time.. so hours after you've trained...
so HIIT, mixed with jogging (or not so intense stead paced exercises) will usually give very good results!
I know that Steve knows alot about this subject to - he'd probably be able to explain all this alot simpler than me I bet!
but that my answer, hope you understand more now?