Cationic concentrations and transmembrane fluxes in erythrocytes of humans during exercise

Cationic concentrations and transmembrane fluxes in erythrocytes of humans during exercise HESPEL, P., P. LIJNEN, R. FIOCCHI, B. DENYS, W. LISSENS, J. R. MBUYAMBA-KABANGU, AND A. AMERY. Cationic concentrations and transmembrane fluxes in s of humans . J. Appl. Physiol. 61(l): 37-43, 1986.-The effect of on the intra cationic concentrations and transmembrane fluxes such as the Na+-K+-adenosinetriphosphatase (ATPase) pump, the Na-K+ cotransport, and the Na+-Li+ countertransport system was studied in 11 normal male volunteers. All subjects performed an uninterrupted incremental test on a bicycle ergometer, starting at an initial work load of 20% of the subjects maximal capacity, as determined in a pretest. The work rate was increased with an additional 20% each 6 min up to a final work load of 80%. Blood samples were taken at rest, at 60 and 80% of maximal capacity, and 1, 2, 3, 4, 5, and 30 min after cessation of . At moderate (60% of maximal capacity) the intra potassium concentration was not changed, but at severe (80% of maximal capacity) it was decreased. After the intra potassium concentration returned to base line within 2 min. did not affect the intra concentrations of sodium and magnesium. The activity of the Na-K+-ATPase pump and the Na+-K+ cotransport in the s and after http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Applied Physiology The American Physiological Society

Cationic concentrations and transmembrane fluxes in erythrocytes of humans during exercise

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Publisher
The American Physiological Society
Copyright
Copyright © 1986 the American Physiological Society
ISSN
8750-7587
eISSN
1522-1601
Publisher site
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Abstract

HESPEL, P., P. LIJNEN, R. FIOCCHI, B. DENYS, W. LISSENS, J. R. MBUYAMBA-KABANGU, AND A. AMERY. Cationic concentrations and transmembrane fluxes in s of humans . J. Appl. Physiol. 61(l): 37-43, 1986.-The effect of on the intra cationic concentrations and transmembrane fluxes such as the Na+-K+-adenosinetriphosphatase (ATPase) pump, the Na-K+ cotransport, and the Na+-Li+ countertransport system was studied in 11 normal male volunteers. All subjects performed an uninterrupted incremental test on a bicycle ergometer, starting at an initial work load of 20% of the subjects maximal capacity, as determined in a pretest. The work rate was increased with an additional 20% each 6 min up to a final work load of 80%. Blood samples were taken at rest, at 60 and 80% of maximal capacity, and 1, 2, 3, 4, 5, and 30 min after cessation of . At moderate (60% of maximal capacity) the intra potassium concentration was not changed, but at severe (80% of maximal capacity) it was decreased. After the intra potassium concentration returned to base line within 2 min. did not affect the intra concentrations of sodium and magnesium. The activity of the Na-K+-ATPase pump and the Na+-K+ cotransport in the s and after

Journal

Journal of Applied PhysiologyThe American Physiological Society

Published: Jul 1, 1986

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