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September 5, 2009

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Skinny thighs point to death risk at earlier age

PEOPLE who have agonized over their fat thighs might be able to relax a bit - Danish doctors have found that patients with the thinnest thighs died sooner than those with meatier bones.

Obesity, age, smoking and other factors did not reduce the effect, the researchers reported in the British Medical Journal.

"Our results suggest that there might be an increased risk of premature death related to thigh size," wrote Berit Heitmann of Copenhagen University Hospital and Peder Frederiksen of Glostrup University Hospital.

The explanation may lie in many different studies that suggest where you gain your weight is a strong factor in how it affects health. People with lots of abdominal fat, wrapped in and around the internal organs, appear to be at higher risk of heart disease, diabetes, and other ills.

So-called pear-shaped people may have lower risks, even if they have more body fat overall.

Heitmann and Frederiksen studied 1,436 men and 1,380 women taking part in a larger medical research study who were examined in 1987 and 1988, then watched them for more than 12 years.

Men and women whose thighs were less than 60 centimeters in circumference were more likely to die during those 12 years, they found.

Those with the thinnest thighs, less than 46cm, were more than twice likely to have died within 12 years, they reported in the study.

Dozens of studies have shown that waist size can also be a good predictor of heart disease and death.

Women with a waist circumference larger than 89cm and men with tummies bigger than 101cm have a much higher risk of heart disease, diabetes and early death than people with smaller waists, regardless of how much body fat they have overall.

This is again linked to abdominal fat. Fat laid down under the skin, as when it is found on the legs, may be healthier for the body, although the mechanism is unclear.

The Danish team said they hoped thigh measurements might be an equally good indicator. But Dr Ian Scott of Princess Alexandra Hospital in Brisbane, Australia, disagreed, saying the statistics in the Danish study were too limited.

He said larger studies would need to be done before doctors could decide that thigh measurement was any kind of good predictor of health.


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