bladesufc1 Posted October 19, 2006 Share Posted October 19, 2006 High intensity workouts can lower male sperm counts, new research suggests. The results indicate exercise could impair fertility in men with already poor sperm counts. Strenuous work-outs also reduce the levels of two male hormones, doctors discovered. For the test, 16 healthy young men were asked to pedal to exhaustion on an exercise bike four times a week for two weeks, or to avoid intense physical activity. The exercisers showed a drop in their sperm concentration, ejaculate volume and number of sperm per ejaculation. Their levels of follicle stimulating hormone and luteinising hormone fell, but remained within normal levels. Their testosterone levels rose. However, two to three days after the training ended, their hormone levels and measures of sperm and semen quality and quantity had returned to near-normal levels, the researchers found. But recovery might not be so quick among older men, the doctors warned, as the average age of the men in the study was 19. Exercise could have disrupted the interactions – between the brain, the pituitary gland and the testicles – that control fertility, the researchers from the University of Cordoba in Spain wrote in the International Journal of Sports Medicine. "WELL I'M BUGGERED THEN!!!! Link to comment Share on other sites More sharing options...
GabbleRatcht Posted October 19, 2006 Share Posted October 19, 2006 "WELL I'M BUGGERED THEN!!!! So it wouldn't matter anyway then:hihi: Ooops, sorry mods Link to comment Share on other sites More sharing options...
Guest Posted October 19, 2006 Share Posted October 19, 2006 The key quotes are: ...However, two to three days after the training ended, their hormone levels and measures of sperm and semen quality and quantity had returned to near-normal levels... and But recovery might not be so quick among older men, the doctors warned, as the average age of the men in the study was 19. So the effect was short term in the age group studied, and they're extrapolating the results to an older age group, without having tested that age group to confirm the data. Link to comment Share on other sites More sharing options...
stackmonkey Posted October 19, 2006 Share Posted October 19, 2006 but the vast majority of men in a gym don't exercise to exhaustion.. Link to comment Share on other sites More sharing options...
Jabberwocky Posted October 19, 2006 Share Posted October 19, 2006 I spent 15 years bodybuilding and have had the pleasure of bringing 4 kids into the world so far. Maybe my workouts werent intense enough! Link to comment Share on other sites More sharing options...
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