The beauty of a Campagnolo derailleur
The warm breath of spring is here, and on it rides the cyclists. I join their ranks, happily. As a teenager in Connecticut, I spent my summers at a bicycle shop working on European models that gleamed amongst the dust motes. I joined a cycling club, wrote stories about races, and deified the movie Breaking Away, a coming-of-age film filled with dreamy Italian bicycles. With the extra money I earned mowing lawns, I bought a beautiful Raleigh racing bike with gorgeous Italian gears and toured rural New England, feeling like I was one of the scrappy townies in the movie. And so my love affair with bicycles began.
It took a while before the honeymoon was over. About twelve years ago, Dr. Irwin Goldstein reported the first case of erectile dysfunction (ED) in an avid cyclist. Other reports followed, and an “epidemic” ensued, despite very few verified cases of bicycling-induced erectile dysfunction. The current understanding is that the saddle (bicycle seat to you laymen), compresses the blood vessels and nerves in the perineum, the area between the scrotum and anus. This cuts off circulation in the penis, and decreases sensitivity. It has been reported that the pressure on the perineum when a man sits on a bicycle is sevenfold that of sitting in chairs. Currently, it is believed that adult men who ride a road bike for more than three hours a week have a seventy percent increased risk of getting ED, and five percent of cyclists will develop bicycle seat impotence. However, the exact risk factors (besides seat time) that predispose men to this problem are not understood.
So now we have a public health paradox. While bicycling is great exercise for your cardiovascular system, it may be detrimental to men’s sexual health. What is good to know is that the Feds are now involved with this issue, specifically the National Institute of Occupational Safety and Health (NIOSH). This is a good thing, as it means that more studies will be forthcoming that will focus on preventing bicycle seat impotence. From what we know now, the safest saddles appear to be those that force men to sit back, keeping the pressure off of the perineum. Noseless saddles may be better too. Gel saddles may be better than foam ones, and split rail or cutout saddles, which have a depression or gap down the middle of the seat, are probably safer. For now, if any pelvic numbness occurs while bicycling, change the saddle so it doesn’t occur anymore. Keeping your pelvis happy may also keep your sex life going.
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turek
May 18, 2009
A Timely Update; Noseless is Better:
The National Institute for Occupational Safety and Health (NIOSH) has just issued (5.14.09) a new publication recommending the use of no-nose, or noseless, bicycle saddles to prevent genital numbness and sexual dysfunction in workers who ride bicycles as part of their job.
This new publication, Workplace Solutions: No-Nose Saddles for Preventing Genital Numbness and Sexual Dysfunction from Occupational Bicycling
summarizes the findings of a number of studies that demonstrated the effectiveness of these new saddles for the nearly 40,000 workers in public safety occupations who ride bicycles. Previous NIOSH studies showed that the pressure on a traditional bicycle saddle in the area under the rider’s groin is approximately 2.90 pounds per square inch during cycling, and can go up as high as 5.37 pounds per square inch. NIOSH studies have shown that no-nose bicycle saddles greatly reduced the pressure in the groin area, to approximately 1.02 pounds per square inch on average. In addition to employing no-nose bicycle saddles, the publication provides additional recommendations for reducing cyclists’ risk from bicycle saddle pressure. The NIOSH Science Blog posted an entry on the use of no-nose bicycle saddles: http://www.cdc.gov/niosh/blog/nsb042209_bikesaddle.html.