Really, there are so
many different cardio plans out there, you select from a wide array you find appealing.
However, if your running or doing
different cardio exercises its best to stick to running trainers that will support your feet and ankle.
You can certainly
utilize different cardio activities as you go through the program, e.g. use treadmill running one day then the elliptical machine the next.
Different cardio routines, some higher in intensity some lower, will not just help you burn the reserves and get muscle tone but also improve your cardiovascular system, your overall health and fitness level.
Try to: mix up your routine,
use different cardio machines at different intensities, try high intensity interval training, sprint training, plyometrics, or play a variety of sports.
X-training is a form of exercise that involves a variety
of different cardio and strength - training techniques to improve your overall fitness.
For example, if you're an avid runner and you've felt your fair share of pavement, you should consider switching to
a different cardio routine to relieve the stress from your feet.
It's impossible to list all of
the different cardio activities known to mankind.
So, he has you pick 3
different cardio machines (or plyometric exercises), and you alternate doing 4 -5-6-6-5-4 minutes on each of them.