Mejuto G.,University of the Basque Country |
Calleja-Gonzalez J.,University of the Basque Country |
Lekue J.A.,Sport Performance Center |
Leibar X.,Sport Performance Center |
And 5 more authors.
High Altitude Medicine and Biology | Year: 2014
Hematological changes in an elite climber over 18 years. High Alt Med Biol 15:406-411, 2014. - Aims: To evaluate the influence of repeated exposure to high altitude over a period of 18 years in an elite climber, red blood cell related parameters were analyzed. Red blood cell levels, hemoglobin concentration, and hematocrit were taken before and after expedition. Results: The analysis, revealed an average increase of 15% in red blood cell related parameters, and showed a negative correlation (p<0.01) between age and post-expedition results. Furthermore, the first part of the study period was statistically different compared to the second (p<0.01). Conclusion: Exposure to extreme altitudes does lead to an increase in red blood cell parameters in the subject of the present study, as it can be seen from the results. Interestingly, this hematological response to extreme hypobaric hypoxia stimuli was attenuated over time. This however is a case report on an elite climber, and further research is needed in order to determine if such responses can be observed in other populations. © 2014 Mary Ann Liebert, Inc.