Circuit training is a type of workout that involves doing a series of different exercises one after the other, with little to no rest in between. Full definition
You can also incorporate some kind of circuit training into your workout regimen. (fitnessandpower.com)
One step at a time, he realized that this is the best decision he has ever made, so he started doing circuit training workouts. (fitnessandpower.com)
So third question - How can I prevent breaking down muscle if I'm going to start training for a half - marathon and doing circuit training with one day of heavy weights? (coachcalorie.com)