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Changes in blood gas transport of altitude native soccer players near sea-level and sea-level native soccer players at altitude (ISA3600)

Title data

Wachsmuth, Nadine ; Kley, Marlen ; Spielvogel, Hilde ; Aughey, Robert J. ; Gore, Christopher J. ; Bourdon, Pitre C. ; Hammond, Kristal ; Sargent, Charli ; Roach, Gregory D. ; Soria Sanchez, Rudy ; Jimenez Claros, Jesus C. ; Schmidt, Walter ; Garvican-Lewis, Laura A.:
Changes in blood gas transport of altitude native soccer players near sea-level and sea-level native soccer players at altitude (ISA3600).
In: British Journal of Sports Medicine. Vol. 47 (December 2013) Issue Suppl. 1 . - i93-i99.
ISSN 1473-0480
DOI: https://doi.org/10.1136/bjsports-2013-092761

Abstract in another language

OBJECTIVES: The optimal strategy for soccer teams playing at altitude is not known, that is, 'fly-in, fly-out' versus short-term acclimatisation. Here, we document changes in blood gas and vascular volumes of sea-level (Australian, n=20) and altitude (Bolivian, n=19) native soccer players at 3600 m. METHODS: Haemoglobin-oxygen saturation (Hb-sO(2)), arterial oxygen content (CaO(2)), haemoglobin mass (Hbmass), blood volume (BV) and blood gas concentrations were measured before descent (Bolivians only), together with aerobic fitness (via Yo-YoIR1), near sea-level, after ascent and during 13 days at 3600 m. RESULTS: At baseline, haemoglobin concentration [Hb] and Hbmass were higher in Bolivians (mean +/- SD; 18.2 +/- 1.0 g/dL, 12.8 +/- 0.8 g/kg) than Australians (15.0 +/- 0.9 g/dL, 11.6 +/- 0.7 g/kg; both p </= 0.001). Near sea-level, [Hb] of Bolivians decreased to 16.6 +/- 0.9 g/dL, but normalised upon return to 3600 m; Hbmass was constant regardless of altitude. In Australians, [Hb] increased after 12 days at 3600 m to 17.3 +/- 1.0 g/dL; Hbmass increased by 3.0 +/- 2.7% (p </= 0.01). BV decreased in both teams at altitude by approximately 400 mL. Arterial partial pressure for oxygen (PaO(2)), Hb-sO(2) and CaO(2) of both teams decreased within 2 h of arrival at 3600 m (p </= 0.001) but increased over the following days, with CaO(2) overcompensated in Australians (+1.7 +/- 1.2 mL/100 mL; p </= 0.001). Yo-YoIR1 was lower on the 3rd versus 10th day at altitude and was significantly related to CaO(2). CONCLUSIONS: The marked drop in PaO(2) and CaO(2) observed after ascent does not support the 'fly-in, fly-out' approach for soccer teams to play immediately after arrival at altitude. Although short-term acclimatisation was sufficient for Australians to stabilise their CaO(2) (mostly due to loss of plasma volume), 12 days appears insufficient to reach chronic levels of adaption

Further data

Item Type: Article in a journal
Refereed: Yes
Keywords: adaption; altitude; ARTERIAL; arterial oxygen content; blood; blood gas; blood volume; BLOOD-VOLUME; fitness; Germany; haemoglobin; haemoglobin concentration; Haemoglobin mass; MASS; method; methods; native; OXYGEN; oxygen content; Partial Pressure; physiology; PLASMA; plasma volume; PLASMA-VOLUME; PLAYERS; PRESSURE; SEA-LEVEL; SHORT-TERM; Soccer; Sport; SPORTS; STRATEGIES; STRATEGY; TRANSPORT; VOLUME; VOLUMES
Institutions of the University: Faculties > Faculty of Cultural Studies > Department of Sport Science > Professorship Sports Science IV
Faculties > Faculty of Cultural Studies > Department of Sport Science > Professorship Sports Science IV > Professorship Sports Science IV - Univ.-Prof. Dr. Walter Schmidt
Faculties
Faculties > Faculty of Cultural Studies
Faculties > Faculty of Cultural Studies > Department of Sport Science
Result of work at the UBT: Yes
DDC Subjects: 600 Technology, medicine, applied sciences > 610 Medicine and health
Date Deposited: 22 Nov 2017 09:24
Last Modified: 23 Nov 2017 08:11
URI: https://eref.uni-bayreuth.de/id/eprint/40442