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WMJ. 2007 Sep;106(6):301-6.

Athletic amenorrhea and endothelial dysfunction.

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Department of Orthopaedic Surgery/Cardiovascular Center, 9200 W Wisconsin Ave, Medical College of Wisconsin, Milwaukee 53226, USA.



To determine if menstrual status changed in amenorrheic college runners over a 2-year period and what effect this had on brachial artery flow-mediated dilation.


Eighteen athletes first studied in our laboratory 2 years prior were available for follow-up. Nine of the 10 original women with athletic amenorrhea (mean +/- SE, age 21.3 +/- 1.2 yrs), and 9 of the 11 eumenorrheics/controls (age 20.1 +/- 0.5 yrs) were studied 2 years after baseline measurements.


Questionnaires/personal interviews and blood draws were performed to determine menstrual status. A non-invasive ultrasound technique was used to determine brachial artery flow-mediated dilation (endothelium-dependent).


Menstrual status changed in 7 of 9 original amenorrheic subjects (2 were taking hormone replacement, 2 were taking oral contraceptives, 3 had a natural menstrual period prior to testing, and 2 remained amenorrheic). Endothelium-dependent brachial artery dilation, measured as the percent change in maximal brachial artery diameter from baseline during reactive hyperemia, was improved in the original amenorrheic subjects (a 1.1% +/- 1.0 increase in the original study versus 5.6% + 1.1 increase in the current study, P=0.01) while in the eumenorrheic/control group there was no change (6.3% +/- 1.7 versus 8.0% +/- 1.3, P=0.42).


Menstrual status changed in 7 of the 9 original amenorrheic athletes, and this change was associated with an improvement in brachial artery flow-mediated dilation.

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