Jun 15, 2014 8:04am
It depends. Now running for 2 hours in a row everyday May not be a good idea, but it says itself that running 10 kilometers burn more calories Then running 5 kilometers regardless of the pace.
But if it takes you 60 min to run 10km and burn 700kcal you Will have burned 12 or so kcal Per min
And if you do lets say sprint intervals for 5km and that takes you 25 min Then you burned a total of 350kcal Then you burned 14kcal Per min.
So short and fast are more time efficient. In addition to that interval training Will get you in better condition faster. And increase the power output of your legs.