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. 2013 Dec;47(Suppl 1):i93–i99. doi: 10.1136/bjsports-2013-092761

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Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://group.bmj.com/group/rights-licensing/permissions

This is an Open Access article distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 3.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. See: http://creativecommons.org/licenses/by-nc/3.0/

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Relationship between haemoglobin oxygen saturation (Hb-sO₂) and arterial partial pressure of carbon dioxide (PaCO₂) which reflects the degree of hyperventilation. Data are obtained from day 1 to day 12 at altitude (BOL at day 16). During the first days at altitude Hb-O₂-saturation is higher in BOL at identical PaCO₂. AUS, Australian players, BOL, Bolivian players.