Your Heart and Hamstrings Will Thank You for This 20-Minute HIIT Workout

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[{"selector":"#anim-720b6a8e-52fd-4062-8579-cd46468f3cc4","keyframes":{"opacity":[0,1]},"delay":850,"duration":1000,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-2dea710f-e089-44ab-ae6f-69b4802da90d","keyframes":{"transform":["translate3d(-92.37668%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":200,"duration":1500,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-b884e42d-4959-4ec7-aeb6-30378407e8da","keyframes":{"opacity":[0,1]},"delay":600,"duration":1000,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] HIIT: High-Intensity Interval Training Purpose: Raise your heart rate to nearly its (safest) highest capacity and then allow it a chance to lower, and then repeat the process. Benefits: Challenges the body while offering periods of rest. Profits the cardiovascular and musculoskeletal systems. What is HIIT & how can it benefit me?

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