High intensity interval training, often abbreviated as HIT or HIIT, has become quite the rage in a world where time is precious and the last thing most people want to do these days is “slave away” on a treadmill or elliptical for an hour.  I wrote a blog post about three tips to maximize your interval sessions here.  While the easiest and most common way to perform an interval is through traditional cardiovascular exercises (jog/run, elliptical, stair climber, rowing, etc.),