Document Detail


Effects of various training modalities on blood volume.
MedLine Citation:
PMID:  18665953     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
It is controversially discussed whether soccer games should be played at moderate (2001-3000 m) and high altitudes (3001-5500 m) or should be restricted to near sea level and low altitude (501-2000 m) conditions. Athletes living at altitude are assumed to have a performance advantage compared with lowlanders. One advantage of altitude adaptation concerns the expansion of total hemoglobin mass (tHb-mass), which is strongly related to endurance performance at sea level. Cross-sectional studies show that elite athletes posses approximately 35% higher tHb-mass than the normal population, which is further elevated by 14% in athletes native to altitude of 2600 m. Although the impact of this huge tHb-mass expansion on performance is not yet investigated for altitude conditions, lowland athletes seek for possibilities to increase tHb-mass to similar levels. At sea level tHb-mass is only moderately influenced by training and depends more on genetic predisposition. Altitude training in contrast, using either the conventional altitude training or the live high-train low (>14 h/day in hypoxia) protocol for 3-4 weeks above 2500 m leads to mean increases in tHb-mass of 6.5%. This increase is, however, not sufficient to close the gap in tHb-mass to elite athletes native to altitude, which may be in advantage when tHb-mass has the same strong influence on aerobic performance at altitude as it has on sea level.
Authors:
W Schmidt; N Prommer
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Publication Detail:
Type:  Journal Article; Review    
Journal Detail:
Title:  Scandinavian journal of medicine & science in sports     Volume:  18 Suppl 1     ISSN:  1600-0838     ISO Abbreviation:  Scand J Med Sci Sports     Publication Date:  2008 Aug 
Date Detail:
Created Date:  2008-07-30     Completed Date:  2008-11-24     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9111504     Medline TA:  Scand J Med Sci Sports     Country:  Denmark    
Other Details:
Languages:  eng     Pagination:  57-69     Citation Subset:  IM    
Affiliation:
Department of Sports Medicine/Sports Physiology, University of Bayreuth, Bayreuth, Germany. walter.schmidt@uni-bayreuth.de
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MeSH Terms
Descriptor/Qualifier:
Altitude
Blood Volume*
Hemoglobins / analysis
Humans
Oxygen Consumption
Physical Fitness*
Soccer
Chemical
Reg. No./Substance:
0/Hemoglobins

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