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Titolo:
EFFECT OF HYPOXIA ON ARTERIAL POTASSIUM CONCENTRATION AT REST AND DURING EXERCISE IN MAN
Autore:
BARLOW CW; QAYYUM MS; DAVEY PP; PATERSON DJ; ROBBINS PA;
Indirizzi:
UNIV OXFORD,PHYSIOL LAB,PARKS RD OXFORD OX1 3PT ENGLAND UNIV OXFORD,PHYSIOL LAB,PARKS RD OXFORD OX1 3PT ENGLAND
Titolo Testata:
Experimental physiology
fascicolo: 2, volume: 79, anno: 1994,
pagine: 257 - 260
SICI:
0958-0670(1994)79:2<257:EOHOAP>2.0.ZU;2-O
Fonte:
ISI
Lingua:
ENG
Tipo documento:
Note
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
5
Recensione:
Indirizzi per estratti:
Citazione:
C.W. Barlow et al., "EFFECT OF HYPOXIA ON ARTERIAL POTASSIUM CONCENTRATION AT REST AND DURING EXERCISE IN MAN", Experimental physiology, 79(2), 1994, pp. 257-260

Abstract

Hypoxia has been reported to increase arterial potassium concentration ([K+]a) in anaesthetized cats (Paterson, Estavillo & Nye, 1988). Thepurpose of this study was to determine whether this phenomenon occursin humans. The effect of hypoxia on [K+]a was measured in ten male subjects, at rest and during light exercise, before and after 8 weeks ofphysical training. The [K+]a increased by 0.15 +/- 0.04 mm (mean +/- S.E.M.) at rest, when end-tidal P(O2) (P(ET,O2)) Was lowered from 100 to 51 +/- 1.6 Torr, and by 0. 10 +/- 0.02 mm during exercise, when P(ET,O2) was lowered from 100 to 66 +/- 6.2 Torr. Physical training did not alter the rise in [K+]a significantly. The magnitude of this effectis small in comparison with that of exercise-induced hyperkalaemia, and is unlikely to be of great physiological significance at moderate levels of hypoxia.

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Documento generato il 29/11/20 alle ore 05:39:13