Two-minute workouts as good as 90 minute run
London, Sept 6 (ANI): 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.
The others walked at the sort of brisk pace recommended in Government health guidelines.
A day later, they came back into the lab and ate a fatty breakfast and lunch consisting of bread, mayonnaise and cheese.
Their blood was then tested to see how quickly the levels of fat in their blood fell - as fat lingering in the blood after eating is known to trigger the first in a series of steps that can lead to clogging of the arteries and heart disease.
The results revealed that walking cut fat by 11 per cent, compared with not doing any exercise.
But the short sharp bursts of exercise cut it by 33 percent - the sort of effect expected from a 90-minute run.
Dr Gray, of Aberdeen University, told the British Science Festival in the city that short bursts of intensive exercise may somehow spur the liver into taking in more fat from the blood, before storing it or burning it off.
He said that, while the high intensity training "won't necessarily" improve strength, it does boost endurance.
He added that the short duration of the exercise was "highly important as time is often cited as the main barrier to taking part in exercise." (ANI)
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