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Secret to slim kids? Just a little running around

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WASHINGTON: Just 15 minutes a day of kicking around a ball or swimming might be enough to keep children from becoming obese, British and US researchers said on Monday.
A study of 5,500 children who agreed to wear a motion sensor device showed that those who exercised more were less likely to be obese  and that short bursts of intense activity seemed to be the most helpful.

Children who did 15 minutes a day of moderate exercise — equivalent to a brisk walk — were 50% less likely than inactive children to be obese, the researchers reported in the Public Library of Science journal PLoS Medicine.

“Our data suggest that higher intensity physical activity may be more important than total activity,”Andy Ness of the University of Bristol and colleagues wrote.

“This study provides some of the first robust evidence on the link between physical activity and obesity in children,”Chris Riddoch of Britain’s Bath University, who worked on the study, said in a statement.

“We know that diet is important, but what this research tells us is that we mustn’t forget about activity. It’s been really surprising to us how even small amounts of exercise appear to have dramatic results,” Riddoch said.

Obesity is on the rise in many countries, including the United States, where 60% of the population is overweight or obese, Britain and elsewhere in Europe.

It is clearly a matter of people eating more calories than they burn off, but experts cannot agree whether diet or exercise is more important — and which kind of exercise might be best.

Ness’ team studied 5,500 children, with an average age of 12, who with their mothers have been taking part in a larger, long-term study of health.

The children agreed to wear a device called an accelerometer, which measures total activity, and they had X-ray scans for body fat.

The researchers rated the children with the top 10% levels of fat mass as obese. The less the children exercised, the more likely they were to be obese, the study found.

Source:The Times Of India

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Health Alert

Being Fat Starts Early

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When you think of a 3-year-old, the words “obese” and “overweight” probably do not come to mind.
But this may be the age when many children’s problems with weight begin, according to a new study published in the American Journal of Public Health. The study by Rachel Kimbro and her colleagues at the University of Wisconsin in Madison looked at nearly 2,300 urban low-income families.
They found that 35 percent of the 3-year-olds studied were overweight or obese. In addition, Hispanic children were twice as likely as either black or white children to be overweight or obese, suggesting ethnic differences play a big part in childhood obesity.
“There are very few studies of obesity in children this young,” said Gary Foster, director of the obesity research center at Temple University School of Medicine. “This study is very important.”
Foster said the study addresses some of the factors that put children at risk for obesity at such a young age. “We have known for a long time that obesity is disproportionately related to income,” he said. “The poorer you are, the more likely that you are obese.”

Among the other child obesity risk factors suggested by the study are high birth weight, taking a bottle to bed and whether or not a child’s mother is obese.

But researchers were not able to fully explain all of the differences. For example, the differences in childhood obesity rates between racial groups could not be entirely blamed on economic status, overall health or parenting habits, the study said.

No Need for Alarm, Some Experts Say
Other experts argue that the study results are not new and just confirm previous data.
“The finding that we can identify different prevalence rate of obesity in different ethnic groups is not particularly surprising,” said Dr. Darwin Deen, professor of family and social medicine at the Albert Einstein College of Medicine in New York. “It correlates well with other data that have shown the same thing.
“The bigger question is whether 3-year-olds in certain ethnic groups are more likely to remain obese as they get older.”

While the idea of overweight and obese 3-year-olds is a concern, experts said a majority of children who are overweight at this age outgrow it.

“The 3 to 5 age group is not predictive of being obese as an adult,” said Deen. “It’s more the older group such as adolescents [that predicts adult obesity].”

But while parents should not necessarily be alarmed if their child is on the heavy side, they should realize the need to change the way they are feeding their child.

Many Parents Overfeed Their Children
“The bottom line is that you can’t become overweight without an energy imbalance,” said Foster. “And the easiest way is by an imbalance on the intake side.
“It’s much easier to increase intake by 500 calories than it is to increase your activity by that much.”
Foster said the study findings suggest parents should pay more attention to both the quantity and the quality of food they feed their kids.

And at the earliest ages, breast-feeding seems to be of utmost importance.
“Breast-feeding is extraordinarily important,” Deen said. “It’s one of the things that plays an important role in preventing obesity.
“This does not mean that most formula-fed babies will become obese or that formula shouldn’t be used, but breast-feeding is sort of tailor-made for the child.”
Monitoring the child’s calorie intake, whether from breast milk or formula, is also important to maintain a healthy weight.
Deen explained that while the study also raises some important concerns about racial differences, it does not change the overall approach to obesity.
“What we are talking about are moderate prevalence rate differences among different ethnic groups,” he said. “I don’t think it helps me much as a practitioner if I know that one group of my patients has more obesity than another group.
“When I have a patient in front of me, my advice about healthy choices remains the same, regardless of what their race is.”
Deen added that as rates of childhood obesity rise, changing kids’ behavior towards food will become more and more crucial.

“I think we need to worry because there clearly is an epidemic of childhood obesity in the country,” said Deen.
The take-home message from this study should be that what we do with children, even in the early years of life, has an impact on their future.”

Source:ABC News

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News on Health & Science

Obese diabetics at risk of kidney disease

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Are you suffering from Type 1 diabetes? You better watch that weight around your waist. Researchers from the   University of Washington, Seattle, have found that adults with Type 1 diabetes who are obese, especially those who carry excess weight around the waist, are at an increased risk of developing kidney disease. In fact, according to the study that was presented at the recently concluded World Diabetes Congress, for every four-inch

increase in waist circumference, the risk of microalbuminuria    small amounts of the protein albumin in urine, the first sign of diabetic kidney disease  increased by 34%. Microalbuminuria is not only an important sign of kidney disease but also a marker of increased risk for cardiovascular disease.

Dr Ian H de Boer from the university’s department of nephrology said,”For patients with Type 1 diabetes, obesity is an important risk factor for the development of kidney disease. Our study suggests that lifestyle interventions, such as exercise and diet, will be useful in preventing kidney and heart disease in this group of people.” The study will appear in
the January 2007 issue of the Journal of American Society of Nephrology.

According to the researchers, the risk of microalbuminuria was significantly higher for patients who were suffering from central obesity fat around the midsection.
The study says,”Weight gain and central obesity are associated with insulin resistance, hypertension and dyslipidemia in Type 1 diabetes.

These metabolic abnormalities are risk factors for kidney disease. Whether waist circumference is associated with microalbuminuria was examined among 1,279 participants who had Type 1 diabetes.”
“Over 93 of 1,105 participants with normal albumin excretion rate developed microalbuminuria over the 5.8 year period.

In conclusion, waist circumference predicts the subsequent development of microalbuminuria in Type 1 diabetes.”

Source:The Times Of India

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