In September 1997, Ed Pavelka, a columnist with
Bicycling magazine, made a startling revelation: He had erectile
dysfunction from riding his bike. He wrote at the time: "...tests revealed
that the blood flow to my penis had become so restricted that I was incapable
of an erection firm enough for sexual intercourse."
Pavelka's conviction that biking had led to his problem was
soon backed up by medical authority. Irwin Goldstein, MD, a specialist of
erectile dysfunction with the Boston University Medical Center, was widely
quoted in the press saying that all male cyclists risked erectile dysfunction,
and that they should consider giving up the sport if they enjoyed sex.
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Goldstein, whose patients included a number of cyclists with
sexual dysfunction, performed a study at Boston University Medical Center to
investigate the connection. His 1997 study showed that cyclists experienced
more sexual dysfunction than athletes who didn't bike. Cyclists' complaints
included erectile dysfunction, groin and penile numbness, and problems
But what was it about cycling that led particularly to erectile
dysfunction? Goldstein's study hadn't uncovered a cause, but another study done
at the University of California, San Diego, offered an explanation. The study
-- done in conjunction with Serfas, a bicycle accessory company in Lake Forest,
Calif. -- found that the rub lies not in cycling itself but in the seats.
"Men can develop erectile dysfunction after sitting on a
hard bicycle seat for many hours because they compress an area of the anatomy
known as the perineum," explains Ken Taylor, MD, a former assistant
clinical professor of family medicine at UCSD and a co-researcher in the 1999
cycling-impotence study. The perineum is the area between the anus and the
Tim Roddy, M.D., a urologist in Edmonds, Wash., agrees that the
pressure of sitting on a bike seat can cause the problem: "A man can
squeeze off some of the vital arteries and nerves necessary for normal sexual
functioning by sitting on a hard bicycle seat too long," he says.