Doing just 60 seconds of high-intensity exercise three times a week can help improve fitness, a study suggests.
Fitness levels of participants in the study improved by more than 10% after two weeks of doing sequences of six-second cycling sprints, researchers say.
High intensity training (Hit) involves short bursts of exercise and is said to achieve similar results to long-distance endurance training but is much less time consuming and comes with a lower risk of injury.
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