London: It may sound like a couch potato’s dream, but two-and-a-half minutes of exercise could be just as good as a 90-minute run, a study has revealed.Research suggests that short, sharp bursts of exercise are better at warding off heart disease than much longer – but less strenuous – sessions, the Daily Mail reported.Academic Stuart Gray asked a group of men aged between 18 and 35 to either do high-intensity sprints on an exercise bike, or walk for half an hour on a treadmill.Those on the exercise bike pedalled as hard as they could for 30 seconds, rested for up to four minutes and then repeated the pattern four times.This meant that, in all, they did two and a half minutes of exercise strenuous enough to make them sweat and leave them out of breath.
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