HIIT Effective for Fat Loss

High-intensity interval training (HIIT)— repeated bouts of high-intensity exercise followed by rest— builds fitness quickly and has changed the way many people train. Gordon Fisher from the Department of Human Studies at the University of Alabama at Birmingham, and colleagues, concluded that HIIT and traditional endurance exercise have similar effects on aerobic capacity, body composition, insulin sensitivity, blood pressure and blood fats. Twenty-eight sedentary, overweight men practiced HIIT or aerobics for six weeks. HIIT consisted of four 30-second sprints on a stationary bike at 85 percent of maximum effort, while aerobics consisted of 45 to 60 minutes of cycling at 55 to 65 percent of maximum effort. HIIT produced the same changes in one hour per week as aerobics, practiced five hours per week. HIIT promotes fat loss in less time than traditional aerobics. (PLOS ONE, 10(10): e0138853, 2015)

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