Wednesday, September 19, 2012

Obesity:Fitness more important then fat

NYTimes   In study after study, overweight and moderately obese patients with certain chronic diseases often live longer and fare better than normal-weight patients with the same ailments. The accumulation of evidence is inspiring some experts to re-examine long-held assumptions about the association between body fat and disease. 

Dr. Carl Lavie, medical director of cardiac rehabilitation and prevention at the John Ochsner Heart and Vascular Institute in New Orleans, was one of the first researchers to document the obesity paradox, among patients with heart failure in 2002. He spent more than a year trying to get a journal to publish his findings. [...]

But there were hints everywhere. One study found that heavier dialysis patients had a lower chance of dying than those whose were of normal weight or underweight. Overweight patients with coronary disease fared better than those who were thinner in another study; mild to severe obesity posed no additional mortality risks.

In 2007, a study of 11,000 Canadians over more than a decade found that those who were overweight had the lowest chance of dying from any cause.

To date, scientists have documented these findings in patients with heart failure, heart disease, stroke, kidney disease, high blood pressure — and now diabetes. 

1 comment :

  1. You quoted the part of the article about fat.
    Here's the fitness part:
    Research that does tease apart weight and fitness — like a series of studies conducted by Steven Blair at the Cooper Institute in Dallas — shows that being fat and fit is better, healthwise, than being thin and unfit. Regular aerobic exercise may not lead to weight loss, but it does reduce fat in the liver, where it may do the most metabolic damage, according to a recent study at the University of Sydney.

    “More often than not, cardiovascular fitness is a far more important predictor of mortality risk than just knowing what you weigh,” said Glenn Gaesser, author of “Big Fat Lies” and director of the Healthy Lifestyles Research Center at Arizona State University.

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