Physical activity and semen quality among men attending an infertility clinic

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Physical activity and semen quality among men attending an infertility clinic

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Title: Physical activity and semen quality among men attending an infertility clinic
Author: Wise, Lauren A.; Cramer, Daniel William; Hornstein, Mark Donald; Ashby, Rachel Kathleen; Missmer, Stacey Ann

Note: Order does not necessarily reflect citation order of authors.

Citation: Wise, Lauren A., Daniel W. Cramer, Mark D. Hornstein, Rachel K. Ashby, and Stacey A. Missmer. 2011. “Physical Activity and Semen Quality Among Men Attending an Infertility Clinic.” Fertility and Sterility 95 (3) (March): 1025–1030. doi:10.1016/j.fertnstert.2010.11.006.
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Abstract: OBJECTIVE

To examine the association between regular physical activity and semen quality.

DESIGN

Prospective cohort study.

SETTING

Couples attending one of three IVF clinics in the greater Boston area during 1993–2003. At study entry, male participants completed a questionnaire about their general health, medical history, and physical activity. Odds ratios (OR) and 95% confidence intervals (CI) were derived using generalized estimating equations models, accounting for potential confounders and multiple samples per man.

PATIENTS

A total of 2,261 men contributing 4,565 fresh semen samples were enrolled before undergoing their first IVF cycle.

INTERVENTION

None.

MAIN OUTCOME MEASURES

Semen volume, sperm concentration, sperm motility, sperm morphology, and total motile sperm (TMS).

RESULTS

Overall, none of the semen parameters was materially associated with regular exercise. Compared with no regular exercise, bicycling ≥5 hours per week was associated with low sperm concentration (OR=1.92, 95%CI=1.03–3.56) and low TMS (OR=2.05, 95%CI=1.19–3.56). These associations did not vary appreciably by age, body mass index, or history of male factor infertility.

CONCLUSIONS

While the present study suggests no overall association between regular physical activity and semen quality, bicycling at levels of ≥5 hours per week was associated with lower sperm concentration and TMS.
Published Version: doi:10.1016/j.fertnstert.2010.11.006
Other Sources: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3043154/
Terms of Use: This article is made available under the terms and conditions applicable to Other Posted Material, as set forth at http://nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of-use#LAA
Citable link to this page: http://nrs.harvard.edu/urn-3:HUL.InstRepos:27332763
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