This workout mixes fast interval cardio via the bike, elliptical glider or running. (This isn't easy to do on a treadmill.) Start Five minutes Tabata, five minutes lift. Take five minutes to do the ...

If you’ve been hearing a lot about HIIT, or high intensity interval training, lately, you’re definitely not alone. HIIT has taken the fitness world by storm over the past decade or so, with more ...

The cardio world has split into two passionate camps that argue with the intensity of people debating pineapple on pizza. On one side, you have the HIIT devotees who swear by short, brutal workouts ...

Everything you need to know about high-intensity interval training to help you hit the ground running in 2026—including a low-impact HIIT workout alternative.

The American Heart Association recommends that adults get "at least 150 minutes per week of moderate-intensity aerobic activity or 75 minutes per week of vigorous aerobic activity" — or a combination ...

There are three pathways that fuel the body during exercise: the immediate, intermediate, and long-term energy pathways. In the immediate and intermediate pathways, creatinine phosphate and ...