bike, treadmill, elliptical , which ever has best view of some fine babe, to let the time pass by
I mix it up. Just up the "level" so it gets my heart rate to where it needs to be. I mix it up cause I get really bored with one thing for 45-60 minutes.
I do sled pulls, I keep a sled in the back of my truck and then no matter what I can get some sprints done in a matter of minutes.






