HIIT workouts generally combine short bursts of intense heart-pounding exercise (during which a person’s heart rate reaches at least 80 percent of its maximum capacity, usually for 1 to 5 minute...
...has to do with heart health: Intervals can boost cardio-respiratory health with a smaller time investment compared to continuous forms of exercise.
It's not about superior fat-burn...
People can burn comparable amounts of calories in HIIT routines lasting, compared to longer continuous exercise routines. But this doesn't mean that calorie burn translates into weight loss...
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