November 13, 2013

PASS THE PECAN PIE, BABY!:

Yes, You Can Be Fit and Fat : A new meta-study finds higher mortality rates among people who are not physically fit--no matter their weight. (Tom Jacobs, 11/13/13, Pacific Standard)

"Much more attention should be given to promoting physical activity and cardiorespiratory fitness as a means to reduce risk for disease and death," writes a research team led by Vaughn Barry of Middle Tennessee State University. Its study is published in the journal Progress in Cardiovascular Diseases. [...]

Barry and his colleagues decided to examine the evidence regarding the "fitness-fatness hypothesis, which suggests a higher level of cardiorespiratory fitness will substantially reduce the adverse effects of obesity on morbidity and mortality, making obesity a much less important factor for health than is generally believed."

After sifting through the literature, they narrowed their focus to 10 studies that measured both fitness and body-mass index (BMI). While the precise methodologies of the studies differed, fitness was measured via exercise trials, while BMI was used to categorize participants as normal, overweight, or obese.

The studies they examined were, for the most part, quite large: Two had more than 20,000 participants, while three others had more than 10,000 participants. Adding them all together, far more men than women took part; six of the studies were all-male, compared to only two that were all-female.

Participants were followed up with between seven and 16 years after the initial data was taken. Researchers determined how many had died in the interim, and compared their initial BMI and fitness 
levels with that of the participants who remained alive.

The key result: "Compared to normal weight-fit individuals, unfit individuals had twice the risk of mortality, regardless of BMI. Overweight and obese-fit individuals had similar mortality risks as normal weight-fit individuals."

Weight is like the debt, an aesthetic issue.
Posted by at November 13, 2013 1:48 PM
  

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