Repeat each circuit 2 - 3 times, depending on your fitness level, before moving on to the next circuit. (jillconyers.com)
Do this as many times as necessary in order to reach 30 and adjust the load down for the next circuit round to get full 30 reps. Rest for 1 - 2 minutes between rounds and aim to complete 3 - 4 rounds total to maximize calorie burning. (fitnessandpower.com)
The entire circuit is repeated for a certain number of rounds before moving onto the next circuit. (mindbodygreen.com)