Why do Circuit Training? . A lot of people get bored easily when working out, circuit training is a great way to make sure your workouts are fun while still being effective. You can do circuit training from pretty much anywhere if you want to intensify the workout you can always add dumbbells, resistance bands, and other equipment. This is a great way to burn extra calories during your workouts as well. It's all up to you, get creative with your routine! | 1 Up Nutrition