A 12-Minute, No-Equipment Workout To Kick Off 2021
High-intensity circuit training checks every boxes. “I’ve always had such a passion for high-intensity circuit training — it’s the way I’ve trained myself and my clients for over 11 years,” Kayla Itsines, co-founder of the Sweat app and creator of the insanely popular BBG Training Programs, tells Refinery29. “What I love about it is that it’s easy to follow and is great for those who are beginners or advanced as it allows you to workout at a pace that works for you and your fitness level.”

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