Sometimes you need a day of cardio without the weights (free or machine). But the workout I have planned for this article is not the LSD (long, slow, dumb) style of treadmill, bike, recumbent or even outdoor workout that you may be envisioning.
This workout is packed with six-minute sprints on different types of machines — some more evil than others. I have also kept my favorite outdoor cardio set just in case you wanted to keep it old school.
1. Take a long look at your gym floor and then select four to five cardio machines that require different muscle groups. Examples include treadmill, indoor rower, step mill or VersaClimber, elliptical, outdoor running, swimming, bike, etc.
2. Plan on spending six minutes at 85 percent effort on each. A good rule of thumb is that you should feel like you’re at eight on your one-to-10 scale of perceived effort.