2. Higher calorie burn, more fat loss
Burning fat requires oxygen, and the more oxygen that gets inside your body the more fat your body can burn. A high-intensity workout increases your body’s need for oxygen during the effort and creates an oxygen shortage, causing your body to demand more oxygen during recovery. This “afterburn” effect is referred to as excess post-exercise oxygen consumption, and is why intense exercise will help burn more fat and calories than regular aerobic and steady-state workouts.
In other words, one of the awesome effects of all that hard work from HIIT is that it will kick your body’s repair cycle into hyperdrive, meaning you will actually continue to burn fat for 24-48 hours after interval training, not just during your workout.
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