High-Intensity Interval training incorporates high intense periods of work with short recovery segments, which will keep the intensity up and the pulse going. HIIT is a great way to boost up your fat-burning ability.
In several studies it has been shown that the changes that takes place in skeletal muscle in response to HIIT gives a great increase in the capacities for skeletal muscle to oxidize fat.
The more important effect of HIIT lies in its ability to keep you burning fat even after you leave the gym, for up to 72 hours. We believe it’s a vital part in every program aiming to lose more body-fat.
Source 1: Tremblay A. Impact of exercise intensity on body fatness and skeletal muscle metabolism. Metabolism. 1994 Jul;43(7):814-8.
Source 2: Perry CG. High-intensity aerobic interval training increases fat and carbohydrate metabolic capacities in human skeletal muscle. Appl Physiol Nutr Metab. 2008 Dec;33(6):1112-23. doi: 10.1139/H08-097.
Source 3: Giannaki CD. Eight weeks of a combination of high intensity interval training and conventional training reduce visceral adiposity and improve physical fitness: a group-based intervention. J Sports Med Phys Fitness. 2015 Jan 8.