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Men lose weight in sprints but not jogs

SPRINTING, not jogging, helps men lose belly fat faster, scientists have found.

Eight-second bursts of sprinting repeated for 20 minutes helped overweight men lose 2kg of body fat in 12 weeks, researchers at the University of New South Wales said.

Importantly, there was a 17pc reduction in the amount of fat stored around their liver, kidneys and other internal organs, which is associated with an increased risk of cardiovascular disease.

The findings, published in the Journal Of Obesity, add to evidence that high-intensity exertion may result in greater fat loss than less vigorous forms of exercise such as jogging.


Bouts of sprinting over 20 minutes three times a week may be enough to spur a significant reduction in fat in overweight young males.

Steve Boutcher, an associate professor who led the study, said: "Other studies using aerobic exercise, such as continuous jogging, have found the amount of exercise needed to produce a similar decrease in visceral fat was about 7 hours per week for 14 weeks."

The Sydney researchers randomly allocated 46 inactive men in their 20s. Those selected to exercise were required to sprint for 8 seconds on a stationary bike followed by a 12-second recovery phase in a training cycle lasting 20 minutes and repeated three times a week over 12 weeks.