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2003/09/06, 12:24 PM
I posted this in reply to one question about HIIT, but thought it may be worth posting to more people. So many questions about HIIT, this may help enlighten.
Empirical evidence shows that high intensity cardio exercise in non-obese subjects has been shown to be more effective than training at a lower intensity level (Tremblay, 1994).
Higher-intensity aerobic intervals have also been shown to increase exercise and resting energy expenditure separate from any change in muscle mass (Hunter et al 1998). Higher-intensity exercise has resulted in greater fat loss despite less total energy expenditure (during a session) when compared to a higher level of energy expenditure achieved in a lower intensity exercise session (Tremblay, 1994).
The total energy cost of the (Moderate Intensity Cardio) MIC program was substantially greater than the (High Intensity Interval Training) HIIT program. The scientists found that the MIC group burned more than twice as many calories while exercising than the HIIT program. HOWEVER, skinfold measurements showed that the HIIT group lost more subcutaneous fat. According to the scientists, " . . .when the difference in the total energy cost of the program was taken into account, the subcutaneous fat loss was nine fold greater in the HIIT program than in the MIC program." Bottom line: the HIIT group experienced 9 times more fat-loss benefit for every calorie burned during exercise. Tremblay, et al; (Metabolism (1994) Volume 43, pp.814-818)
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Great people never want it easier, they just want to be better!
Ron
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