Originally Posted by Mike Karolewicz
So how should I start my cardiovascular training. Should i start with running hills or flat land. For what its worth wod was a 5k and I had to stop at 1 mile for a rest I was dying... Thanks for all the help.
If you find 1 mile challenging, I'd go with flat runs until you can run 5k fairly comfortably. When it comes to hills, less is more IMO.