Document Detail

Blood testing in sport: hematological profiling.
MedLine Citation:
PMID:  20535659     Owner:  NLM     Status:  MEDLINE    
Hemoglobin concentration and percent reticulocytes (%retics) were analyzed in blood samples taken pre-competition, post-competition, and during out of competition testing in elite speed skaters. Percent reticulocytes during screening was not different from the values obtained post-race, and no significant gender difference was found. Mean hemoglobin concentration both in males and females was slightly higher at 1 425 m altitude compared to <750 m altitude (0.23 g/dl increase in males and 0.48 g/dl increase in females; p<0.05 and p<0.01, respectively). Mean %retics at 1 425 m altitude is higher (0.24% in males and 0.27% in females, respectively, p<0.01) compared to blood sampled <750 m altitude. The distribution of percent reticulocytes shows 11 out of 11 500 samples with %reticulocytes below 0.4%. From the 171 samples with a values >2.4% in 52 skaters at least two consecutive samples yielded a percent reticulocytes above 2.4%. In 50 individuals with generally normal values but at least in two consecutive samples values above 2.4% the pattern required additional testing. In conclusion, percent reticulocytes are a robust hematological parameter, including acute exercise.
H Kuipers; S Dubravcic-Simunjak; J Moran; D Mitchell; J Shobe; H Sakai; R Ambartsumov
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Publication Detail:
Type:  Journal Article     Date:  2010-06-09
Journal Detail:
Title:  International journal of sports medicine     Volume:  31     ISSN:  1439-3964     ISO Abbreviation:  Int J Sports Med     Publication Date:  2010 Aug 
Date Detail:
Created Date:  2010-07-28     Completed Date:  2010-11-08     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8008349     Medline TA:  Int J Sports Med     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  542-7     Citation Subset:  IM    
Copyright Information:
(c) Georg Thieme Verlag KG Stuttgart . New York.
University Maastricht, Human Movement Sciences, Maastricht, The Netherlands.
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MeSH Terms
Hematologic Tests / methods
Hemoglobins / metabolism*
Physical Endurance
Reticulocytes / metabolism*
Sex Factors
Reg. No./Substance:

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