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Cigarettes May be Useful for Distance Runners?!? (or, How to Prove Anything with a Review Article)

Smoking-213x300   Travis Saunders in Obesity Panacea:
Could smoking really be beneficial for distance runners like myself? Here are Ken’s arguments:
1. Serum hemoglobin is related to endurance running performance. Smoking is known to enhance serum hemoglobin levels and (added bonus), alcohol may further enhance this beneficial adaptation. 2. Lung volume also correlates with running performance, and training increases lung volume. Guess what else increases lung volume? Smoking. 3. Running is a weight-bearing sport, and therefore lighter distance runners are typically faster runners. Smoking is associated with reduced body weight, especially in individuals with chronic obstructive pulmonary disease (these folks require so much energy just to breath that they often lose weight).
In the discussion, Ken goes on to point out that:
Cigarette smoking has been shown to increase serum hemoglobin, increase total lung capacity and stimulate weight loss, factors that all contribute to enhanced performance in endurance sports. Despite this scientific evidence, the prevalence of smoking in elite athletes is actually many times lower than in the general population. The reasons for this are unclear; however, there has been little to no effort made on the part of national governing bodies to encourage smoking among athletes.
Now at this point I assume that people are wondering how something this insane came to be published in a respected medical journal (as of 2010, CMAJ was ranked 9th of out 40 medical journals, with an impact factor of 9). The answer, of course, is that the point of Ken’s article was to illustrate how you can fashion a review article to support almost any crazy theory if you’re willing to cherry-pick the right data.
Posted by Robin Varghese at 11:57 AM | Permalink

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