With one of the most commonly cited reasons for lack of physical activity participation being ‘lack of time’,1 high-intensity interval training (HIIT; involving short-to-long periods of high-intensity exercise separated by periods of relative recovery or rest) offers a time-efficient method for reducing cardiometabolic risk.
Various HIIT programmes have been shown to be effective at improving insulin sensitivity, aerobic exercise capacity, blood pressure, body composition and vascular function, to a similar extent as moderate intensity continuous training (MICT), with a lower total exercise time.