As each round is three minutes long, you will be working your high - end aerobic system as well as your anaerobic system while developing muscular endurance. (fitnessandpower.com)
Likewise if you don't have a good functioning aerobic system, which helps the power muscle fibers function and prevents injury. (philmaffetone.com)
However, your average american is almost guaranteed to have some level of carbohydrate intolerance (think: insulin resistance), which is a sign of a very poor aerobic system. (philmaffetone.com)