This is a quick, simple, and effective cardio workout to do on your days off from your trainer. The videos show different versions of the exercises - from modified to more advanced.  No equipment needed - body weight only:

• 5 exercises

• each exercise is performed at maximum intensity

• exercise duration is 20 seconds

• 10 seconds rest between exercises

• 3 consecutive rounds at one time as a minimum

• try not to rest between rounds, but if you have to, rest for no more than 30 seconds

DON'T FORGET TO WARM UP BEFORE & STRETCH AFTER!