@article{ref1,
title="An online survey of exercise-related headaches among cyclists",
journal="Headache",
year="2012",
author="van der Ende-Kastelijn, Karin and Oerlemans, Willem and Goedegebuure, Simon",
volume="52",
number="10",
pages="1566-1573",
abstract="Background. Primary exertional headache (PEH) is a long-known phenomenon. Divergent prevalences of between 0.2 and 12.3% are reported among the general population. The aim of this study was to establish the prevalence among an athletic population. <br><br>METHOD. A link to an online questionnaire was sent to all participants of a tough cycling event held in The Netherlands. <br><br>RESULTS. Four thousand participants filled out the questionnaire. One thousand eight hundred and ten (45%) stated that they had suffered, at least once in their lives, from exercise-related headaches (EHs). Thirty-seven percent (668) of them had those headaches at least once a month and 10% (174) experienced a weekly occurrence. The rate of female cyclists with a history of EHs was 54%. With an increasing age, a decline of EHs was found. Five hundred eighty-one (37%) of the participants used medication for EHs. <br><br>CONCLUSIONS. An estimation of the prevalence of PEHs among the studied population by comparison to the International Headache Society criteria resulted in a rate of 26%. The lower prevalence among older cyclists could be caused by avoidance of (high-intensity) exercise due to the burden that EH brings along. PEH appears to be quite common among an athletic population and merits further investigation.<p /> <p>Language: en</p>",
language="en",
issn="0017-8748",
doi="10.1111/j.1526-4610.2012.02263.x",
url="http://dx.doi.org/10.1111/j.1526-4610.2012.02263.x"
}