High-intensity interval training, or HIIT, is a type of cardiovascular exercise that alternates between short bursts of intense activity and periods of rest. HIIT workouts have been shown to be effective at burning fat and improving fitness levels in a shorter amount of time than traditional steady-state cardio. This HIIT treadmill workout is a great way to get started with HIIT and see results quickly! In this article, we’ll give you a step-by-step guide to doing a HIIT treadmill workout, as well as some tips on how to make the most of your workout. What is High Intensity Interval Training (HIIT)? HIIT is a type of cardiovascular exercise that alternates…