The response of trained athletes to six weeks of endurance training in hypoxia or normoxia
Deutscher übersetzter Titel: | Die Reaktion trainierter Sportler auf ein sechswöchiges Ausdauertraining in Hypoxie und Normoxie |
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Autor: | Ventura, N.; Hoppeler, Hans H.; Seiler, R.; Binggeli, A.; Mullis, P.; Vogt, M. |
Erschienen in: | International journal of sports medicine |
Veröffentlicht: | 24 (2003), 3, S. 166-172, Lit. |
Format: | Literatur (SPOLIT) |
Publikationstyp: | Zeitschriftenartikel |
Medienart: | Gedruckte Ressource Elektronische Ressource (online) |
Sprache: | Englisch |
ISSN: | 0172-4622, 1439-3964 |
DOI: | 10.1055/s-2003-39086 |
Schlagworte: | |
Online Zugang: | |
Erfassungsnummer: | PU200410002800 |
Quelle: | BISp |
Abstract des Autors
This study was performed to investigate the effect of training under simulated hypoxic conditions. Hypoxia training was integrated into the normal training schedule of 12 endurance trained cyclists. Athletes were randomly assigned to two groups and performed three additional trai-ning bouts per week for six weeks on a bicycle ergometer. One group (HG) trained at the anaerobic threshold under hypoxic conditions (corresponding to an altitude of 3200 m) while the control group (NG) trained at the same relative intensity at 560 m. Preceding and following the six training weeks, performance tests were performed under normoxic and hypoxic conditions. Normoxic and hypoxic VO2max, maximal power output as well as hypoxic work-capacity were not improved after the training period. Testing under hypoxic conditions revealed a significant increase in oxygen saturation (SpO2, from 67.1 ± 2.3% to 70.0 ± 1.7%) and in maximal blood lactate concentration (from 7.0 to 9.1 mM) in HG only. Ferritin levels were decreased from 67.4 ± 16.3 to 42.2 ± 9.5 µg/l (p<0.05) in the HG and from 54.3 ± 6.9 to 31.4± 8.0 µg/l (p=0.17) in the NG. Reticulocytes were significantly increased in both groups by a factor of two. In conclusion, the integration of six weeks of high intensity endurance training did not lead to improved performance in endurance trained athletes whether this training was carried out in hypoxic or normoxic conditions. Verf.-Referat