Home > Uncategorized > Tip # 48: If you’re Worried about Your Sperm.

Tip # 48: If you’re Worried about Your Sperm.

Spanish researchers have found that active male cyclists have lower quality sperm to the point of infertility risk. Among other things, they blame the painful “function over form” design of the wedge bicycle seat. A team led by professor Diana Vaamonde, from the University of Cordoba Medical School, tracked the workout regimen of 15 Spanish triathletes, with an average age of 33 who had been training for at least eight years, while also monitoring their sperm morphology.  For those in the test group that covered more than 180 miles per week on their bikes, the percentage of normal looking sperm dropped from a group average of 10 percent to 4 percent, a rate where infertility problems begin. Increased swimming or running did not affect sperm quality.

“We found a statistically adverse correlation between sperm morphology and the volume of cycling training undertaken per week,” Vaamonde said. “We believe that all the factors inherent in this sports activity, especially with regards to the cycling part, may affect sperm quality,” she added. “Moreover, we think that normal physiological homeostasis – the body’s ability to regulate its own environment – may become irreversibly altered, therefore resulting in complex anomalies.”

Vaamonde cited three possible reasons for the results: the increased heat during exercise, the friction and pressure against the seat causing microtrauma on the testes, and the overall rigor of intense exercise.

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