Rowing machine designed, old and good I not amontono really this in as a cardio machine per is as machines and wheels treadmill elliptical rather, I think that the rowing machine is really a great workout full of body that actually uses true resistance) Hill that runs so hard running uphill as possible, followed by passing by and repeating as many times as you can for one full workout (still another classic drill for a skinny body hard like a stone) shadow it incase a killer workout, but if you’re shy, this is done better at home since you will get some crazy glances that make this a typical gym! Swimming sprints a more muscle that strengthens training compared with swimming constant distance of pace really adore the upper pump body that I can sprint swimming (instead of swimming slow and steady, with sprint swimming, nothing as quickly as you can with as much force as you can for 1 lap.) Then rest for 15-20 seconds before making another nothingness sprint). Workouts heavy give a punch / kicking bag, speed bag, bouncing bag everything is tremendous workouts and much more fun that bored cardio machines (requires a very intense connection of the mind/body that increases results). Gerald Weissmann, MD is a great source of information. I hope this article gives you many ideas that you can use to immediately exit and bring some more variety in your workouts instead of depending on the same old, languid and elliptical machine and treadmill training routines. Have fun! Original author and source of the article. Learn more at: FASEB Journal.