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Originally Posted by rockinrobin
And on the other hand, having muscles and the ability to run miles, doesn't mean you are healthy (but it's a good start) - because the very best thing you can do for you health is to be a healthy weight.
Research has indicated this is pretty much untrue except at the extremes of super morbid obesity. A sampling (I can get you links to the articles or you can follow the quote references) of research:
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"[A] fit man carrying 50 pounds of body fat had a death rate less than one-half that of an unfit man with only 25 pounds of body fat."
-Harvard Health Policy Review, 2003
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"There was a steep inverse gradient between fitness and mortality in this cohort of men with documented diabetes, and this association was independent of BMI … Obese men with fitness levels greater than the lowest quartile were at no increased risk for mortality when compared with men in the reference group."
-Diabetes Care, 2004
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"Active obese individuals actually have lower morbidity and mortality than normal weight individuals who are sedentary … the health risks of obesity are largely controlled if a person is physically active and physically fit."
-The President's Council on Physical Fitness and Sports, 2000
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"Compared with normal weight, overweight and obesity did not significantly increase all-cause mortality risk. Compared with low CRF [cardiorespiratory fitness], moderate and high CRF were associated significantly with lower mortality risk."
-Obesity Research, 2002
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"Obese individuals with at least moderate CRF [cardiorespiratory fitness] have lower rates of cardiovascular disease (CVD) or all-cause mortality than their normal-weight but unfit peers. In fact, death rates in the former group are about one half those of the latter."
-Editorial, JAMA, 2004
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"Unfit, lean men had twice the risk of all-cause mortality as did fit, lean men and also had higher risk of all-cause mortality when compared with fit, obese men. The all-cause mortality rate of fit, obese men was not significantly different from that of fit, lean men … In summary, we found that obesity did not appear to increase mortality risk in fit men. For long-term health benefits we should focus on improving fitness by increasing physical activity rather than relying only on diet for weight control."
-American Journal of Clinical Nutrition, 1999
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"This prospective follow-up study among middle-aged and elderly men and women indicates that obesity (as assessed by increased BMI) is not related to an increased risk of all-cause and CVD mortality, but low-level LTPA [leisure time physical activity] and a low level of perceived physical fitness and functional capability are … In conclusion, in contrast with our initial hypothesis, obesity was not found to be an independent predictor of mortality among middle-aged and elderly men and women. However, low-level LTPA seemed to predict and a low level of perceived physical fitness and functional capability predicted an increased risk of all-cause and CVD mortality among both men and women."
-International Journal of Obesity Related Metabolic Disorders, 2000
