Originally Posted by ManInCamo
yea, do at least 45 minutes of cardio when do cardio...
start running two miles, then hop on an eliptical machine, then try running 2.5 miles, etc...
get at least 45 minutes of cardio.
This is what I do. It breaks up the boringness sometimes.
edit: get on the bike after for about 10 minutes, it's good to ease your heart down, and not spike it, when you're trying to strengthen your heart.