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Hematological and ventilatory responses to a 3900 m altitude sojourn in an elite wheelchair-marathoner.

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Hematological and ventilatory responses to a 3900 m altitude sojourn in an elite wheelchair-marathoner.

dc.contributor.author	Sanz Quinto, Santiago
dc.contributor.author	Girard, Olivier
dc.contributor.author	López Grueso, Raúl
dc.contributor.author	Brizuela Costa, Gabriel Alberto
dc.contributor.author	Moya Ramón, Manuel
dc.date.accessioned	2022-03-22T08:26:24Z
dc.date.available	2022-03-22T08:26:24Z
dc.date.issued	2022
dc.identifier.citation	Sanz Quinto, Santiago Girard, Olivier López Grueso, Raúl Brizuela Costa, Gabriel Alberto Moya Ramón, Manuel 2022 Hematological and ventilatory responses to a 3900 m altitude sojourn in an elite wheelchair-marathoner. European Journal of Sports Sciences 1 1 1 8
dc.identifier.uri	https://hdl.handle.net/10550/81970
dc.description.abstract	This case study aimed to report blood markers and resting respiratory rate (RR) oscillations at sea level, during a 5-wk 3900 m altitude sojourn, and after returning to sea level in a 36-year-old professional wheelchair marathoner. Outcome measures plasma erythropoietin (EPO) concentration, hemoglobin, reticulocytes count, erythrocytes and hematocrit as well as RR were measured upon wakening 7-weeks pre-altitude, 7-days pre-altitude, 35 hours after arrival to altitude, on days 8, 15, 21, 28 and 35 at altitude, 6 and 16 days after returning to sea level. EPO increased up to 259 % (31.6 U l-1) 35 hours upon arrival at altitude and decreased below pre-altitude level (12.2 U l-1) on the 21st day of the camp (8.7 U l-1), reaching the lowest values 16 days after returning from altitude (1.9 U l-1). All blood parameters, except for reticulocytes, increased (range: +17.9 to +23.8%) after 35 days of altitude exposure. Compared to pre-altitude, RR increased during the first week of exposure to hypoxic conditions and remained elevated throughout the camp until the fifth week (5.1±0.4 vs. 9.1±1.6 and 6.6±0.8 breaths min-1; Cohen´s d = +3.4 and +2.4, respectively). A 5-wk high-altitude sojourn triggered polycythemia and elevations in RR (as indicators of effective hypoxic acclimatization) in a professional wheelchair-marathoner.
dc.language.iso	eng
dc.relation.ispartof	European Journal of Sports Sciences, 2022, vol. 1, num. 1, p. 1-8
dc.subject	Entrenament (Esport)
dc.subject	Aparell respiratori
dc.subject	Respiració
dc.title	Hematological and ventilatory responses to a 3900 m altitude sojourn in an elite wheelchair-marathoner.
dc.type	journal article	es_ES
dc.date.updated	2022-03-22T08:26:25Z
dc.identifier.doi	10.24018/ejsport.2022.1.1.2
dc.identifier.idgrec	150783
dc.rights.accessRights	open access	es_ES