Try this on for size:
10 minutes on the treadmill—warm up for three to five minutes and then pick it up to a moderate pace for the remaining time.
10 minutes on the elliptical trainer at a higher pace than normal. (Depending on your fitness level, you may need to start out at a moderate pace and work up to a higher pace.)
10 minutes on the stationary bike at a moderate pace (or higher, depending on fitness level), then five minutes on the treadmill at a slow pace to cool down.
Tip: If you normally perform more than 30 minutes of cardio, increase each segment accordingly.
And there you have it. Consider your body cardio shocked!
In order to avoid risk of injury, please seek advice directly from your physician, especially if you have existing medical issues, before beginning any exercise or nutritional program. Also, be sure to stretch after exercise to avoid muscle and joint tightness