Author Topic: cardio  (Read 2199 times)

Offline TMonkey

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« on: July 29, 2012, 11:20:07 AM »
Sprinting, Not Jogging, Sheds More Harmful Belly Fat, Study Says
By Jason Gale - Jun 27, 2012
Sprinting, not jogging, helps men lose harmful belly fat faster, scientists in Sydney found.

Eight-second bursts of sprinting on an exercise bike repeated intermittently for 20 minutes helped overweight men lose 2 kilograms (4 pounds) of body fat over 12 weeks, researchers at the University of New South Wales said today. Importantly, there was a 17 percent reduction in fat stored around their liver, kidneys and other internal organs that is associated with an increased risk for 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. The research also indicates bouts of sprinting over 20 minutes three times a week may be enough to spur a significant reduction in fat, including around the trunk, in overweight young males.

“Sprinting is a very efficient form of exercise and it’s fun,” said Steve Boutcher, an associate professor in the university’s school of medical sciences, who led the study. “Other studies using aerobic exercise, such as continuous jogging, have found that the amount of exercise needed to produce a similar decrease in visceral fat was about 7 hours per week for 14 weeks.”

Two-thirds of U.S. adults are overweight and one-third are obese, according to the Atlanta-based Centers for Disease Control and Prevention. The obesity rate may rise to 42 percent of the U.S. population by 2030, the CDC said in a May 7 report.

Adding Muscle

The Sydney researchers randomly allocated 46 inactive men in their 20s into either an exercise or control group. 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.

Weight and waist circumference increased in the control group. While those in the exercise group lost weight, they put on 1.2 kilograms of muscle in their legs and trunk, according to the study, which was supported by Diabetes Australia.

“Participation in regular aerobic exercise typically results in little or no gain in muscle mass, whereas moderately hard resistance exercise over months may increase muscle mass,” Boutcher said.

To contact the reporter on this story: Jason Gale in Melbourne at

To contact the editor responsible for this story: Jason Gale at
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Online Bando

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Re: cardio
« Reply #1 on: August 01, 2012, 09:27:24 AM »
After reading this I tried to put 8 second sprints into my AM run this morning, 8 seconds was just enough time to get up to top speed. Going to try it on a bike since slowing down that often while running tends to get painful. 
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Offline drarmament

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Re: cardio
« Reply #2 on: August 01, 2012, 06:47:28 PM »
When I do cardio, it just sprints. I mostly do 30 seconds, 45 seconds, and 1 min intervals. HIIT style. I don't do any long distance running since I'm trying to gain. I have a hard time gaining weight, so the sprints work for me to cut flab