apGet ready to challenge yourself with trainer Amanda Butlera, who will be leading this 10-minute HIIT workout joined by Jimmy Roblesa and Ellie Avilesa. In this routine, you'll start with a quick warmup to get your heart rate up and prep your body for the work ahead. Butler will make you sweat with tough but efficient moves like jump squats, lateral high knees, and mountain climbers. This 10-minute HIIT circuit is great on its own or as a satisfying finisher after another workout. Even better? All you need is a mat to get started.pbr pDon't miss new episodes of Class Fitsugar every Sunday and Wednesday on the POPSUGAR Fitness YouTube channela.