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The Capital Region of Denmark - a part of Copenhagen University Hospital
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Blood profiles in elite cross-country skiers: a 6-year follow-up

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Following the doping scandals at the World Championships in cross-country skiing in 2001, the International Ski Federation decided to generate individual blood profiles. From 2001 to 2007, 7081 blood samples from 1074 male and female elite cross-country skiers were collected and analyzed for hemoglobin concentration [Hb] and % reticulocytes (%rets). Data were applied to blood algorithms wherefrom blood model scores were calculated. From 1997-1999 to 2001-2002, the mean [Hb] was reduced by 0.9 g/dL to 15.3 g/dL in male skiers and by 0.4 g/dL to 13.8 in female skiers. From 2002-2003 to 2006-2007, the combination of increases in [Hb] and decreases in %rets led to pronounced increases in mean OFF-model scores. [Hb] was 0.2 g/dL higher at Olympic Games/World Championships (WOCs) than at World Cups competitions
Original languageEnglish
JournalScandinavian journal of medicine & science in sports
Volume19
Issue number2
Pages (from-to)198-205
Number of pages8
ISSN0905-7188
DOIs
Publication statusPublished - 1 Apr 2009

ID: 32358301