Document Detail

The effect of sodium citrate intake on anaerobic performance in normoxia and after sudden ascent to a moderate altitude.
MedLine Citation:
PMID:  12032413     Owner:  NLM     Status:  MEDLINE    
BACKGROUND: The effect of sodium citrate intake on anaerobic performance in normoxia and acute hypoxia was tested in 17 healthy male subjects.
METHODS: The subjects underwent a high-intensity exercise protocol in conditions of normoxia (N) and at 2320 m above the sea level (H). Each condition was combined with the intake of a placebo (Pl) or sodium citrate (C).
RESULTS: The results obtained showed a drop in the maximum HR (p<0.001), due to the effect of the altitude (185+/-8 vs 176+/-8 bpm for N and H under Pl conditions and 189+/-9 vs 178+/-8 bpm for N and H under C conditions). C caused an increase in the RER (p<0.05) and the maximum Lac (p<0.01). The action of this same factor brought about a drop in the maximum VE (p<0.01) (182.60+/-21.58 vs 177.38+/-20.29 l x min(-1) in N and 185.71+/-22.98 vs 179.06+/-22.91 l x min(-1) in H). The interaction of both C and H affected the maximum concentration of lactate obtained (p<0.01), which fell as regards that expected by the corresponding action of both factors separately (14.33+/-2.94 vs 17.8+/-2.74 mMol x l(-1) with Pl and C in N and 15.29+/-2.15 vs 15.54+/-2.59 mMol x l(-1) in H). There were no significant differences in the length of work time in each of the conditions established.
CONCLUSIONS: It would, therefore, seem that in the conditions described, the intake of sodium citrate does not cause appreciable changes in anaerobic performance.
B Feriche Fernández-Castanys; M Delgado-Fernández; J Alvarez García
Related Documents :
8001533 - Physiological changes induced by pre-adaptation to high altitude.
19168923 - Live high + train low: thinking in terms of an optimal hypoxic dose.
18977213 - Gaseous oxygen persufflation or oxygenated machine perfusion with custodiol-n for long-...
Publication Detail:
Type:  Clinical Trial; Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  The Journal of sports medicine and physical fitness     Volume:  42     ISSN:  0022-4707     ISO Abbreviation:  J Sports Med Phys Fitness     Publication Date:  2002 Jun 
Date Detail:
Created Date:  2002-05-28     Completed Date:  2002-10-16     Revised Date:  2013-04-04    
Medline Journal Info:
Nlm Unique ID:  0376337     Medline TA:  J Sports Med Phys Fitness     Country:  Italy    
Other Details:
Languages:  eng     Pagination:  179-85     Citation Subset:  IM    
Department of Physical Education, University of Granada, Granada, Spain.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Anaerobic Threshold / drug effects*
Anoxia / physiopathology*
Citrates / pharmacology*
Double-Blind Method
Exercise / physiology*
Heart Rate
Lactic Acid / blood
Pulmonary Gas Exchange
Pulmonary Ventilation
Reg. No./Substance:
0/Citrates; 1Q73Q2JULR/sodium citrate; 50-21-5/Lactic Acid

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

Previous Document:  Competition between internal and external sources of information during exercise: influence on RPE a...
Next Document:  Bioelectrical impedance measures in different position and vs dual-energy X-ray absorptiometry (DXA)...