The effects of classic altitude training on hemoglobin mass in swimmers
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Aim of the study was to determine the influence of classic altitude training on hemoglobin mass (Hb-mass) in elite swimmers under the following aspects: (1) normal oscillation of Hb-mass at sea level; (2) time course of adaptation and de-adaptation; (3) sex influences; (4) influences of illness and injury; (5) interaction of Hb-mass and competition performance. Hb-mass of 45 top swimmers (male 24; female 21) was repeatedly measured (~6 times) over the course of 2 years using the optimized CO-rebreathing method. Twenty-five athletes trained between one and three times for 3–4 weeks at altitude training camps (ATCs) at 2,320 m (3 ATCs) and 1,360 m (1 ATC). Performance was determined by analyzing 726 competitions according to the German point system. The variation of Hb-mass without hypoxic influence was 3.0 % (m) and 2.7 % (f). At altitude, Hb-mass increased by 7.2 ± 3.3 % (p < 0.001; 2,320 m) and by 3.8 ± 3.4 % (p < 0.05; 1,360 m). The response at 2,320 m was not sex-related, and no increase was found in ill and injured athletes (n = 8). Hb-mass was found increased on day 13 and was still elevated 24 days after return (4.0 ± 2.7 %, p < 0.05). Hb-mass had only a small positive effect on swimming performance; an increase in performance was only observed 25–35 days after return from altitude. In conclusion, the altitude (2,320 m) effect on Hb-mass is still present 3 weeks after return, it decisively depends on the health status, but is not influenced by sex. In healthy subjects it exceeds by far the oscillation occurring at sea level. After return from altitude performance increases after a delay of 3 weeks.
KeywordsAltitude Acclimatization Sex influence Illness Injury Competition performance
The project was financially supported by the World-Anti-Doping-Agency (WADA, grant no. 05A5FS) and the German Federal Institute of Sports Sciences (BISp, grant no. IIA1-070309/08). We thank all of the swimmers and their trainers for their excellent compliance. We especially acknowledge the cooperation with Ørjan Madsen, the head coach and technical director of the German swimming federation. We would also like to thank the administration and the staff of the Frankfurt Airport Hospital for providing their laboratory as well as the medical head of the Olympic Centre Heidelberg Prof. Dr. Friedmann-Bette, and of the IAT Leipzig, Dr. Berbalk.
Conflict of interest
No conflict of interests.
- Brugniaux JV, Schmitt P, Robach P, Nicolet G, Fouillot J-P, Moutereau S, Lasne F, Pialoux V, Saas P, Chorvot J, Cornolo J, Olsen NV, Richalet J-P (2006) 18 days of “living high, training low” stimulate erythropoiesis and enhance aerobic performance in elite middle-distance runners. J Appl Physiol 100:203–211PubMedCrossRefGoogle Scholar
- Hopkins WG (2005) Competitive performance of elite track-and-field athletes: variability and smallest worthwhile enhancements. Sportscience 9:17–20Google Scholar
- Lewis SM (1989) Erythropoiesis. In: Hoffbrand AV, Lewis SM (eds) Postgraduate hematology, 3rd edn. Heinemann, London, pp 1–25Google Scholar
- Morceau F, Dicato M, Diederich M (2009) Pro-inflammatory cytokine-mediated anemia: regarding molecular mechanisms of erythropoiesis. Mediators Inflamm, Article ID405016, p 11. doi: 10.1155/2009/405016
- Prommer N, Schmidt W (2009) Hämoglobinmenge und Sport. Dtsch Z Sportmed 60:293–294Google Scholar
- Schmidt W, Völzke C, Wachsmuth N, Wolfarth B, Schmidt-Trucksäss A, Steinacker J, Treff G, Gundersen J, Eastwood A, Prommer N (2011) Variation of hemoglobin mass in elite Endurance athletes. Med Sci Sports Exerc 43(5 Supplement):437Google Scholar
- Schoene RB, Robertson HT, Pierson DJ, Peterson AP (1981) Respiratory drives and exercise in menstrual cycles of athletic and nonathletic women. J Appl Phys 50:1300–1305Google Scholar