Description
Are you a marathon runner needing to improve your performance? Or a cyclist wondering just what is necessary nutrition. High-intensity interval training (HIIT) is just that – short bursts of vigorous activity like sprinting and body-weight exercise alternating with recovery periods. It raises your heart rate and keeps it up for hours after a session. According to the British Journal of Sports Medicine, as many kilojoules are consumed in 30 minutes of HIIT as in an hour of other aerobic exercise; 75 minutes of HIIT a week is enough to get and stay fit.
