9781422272152

bursts during training are not a random interval he pulled out of thin air. The average football play lasts between 5 and 7 seconds; therefore, his clients are required to go all out for an interval that simulates the same time period they are expected to performduring a game. BRITNEY SPEARS If you are going to achieve the level of fame and success that pop superstar Britney Spears has reached during her career, there are undoubtedly somemust-haves beyond singing. Two of these

Turn-of-the-century pop icon Britney Spears is still putting on concerts complete with high energy dance routines in her late thirties, thanks in part to her HIIT workouts on the spin bike.

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High-Intensity Interval Training (HIIT)

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