Plasma renin activity, aldosterone and catecholamine levels when swimming and running

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Deutscher übersetzter Titel:Reninaktivität, Aldosteron- und Katecholaminkonzentration im Plasma beim Schwimmen und Laufen
Autor:Guezennec, C.Y.; Defer, G.; Cazorla, G.; Sabathier, C.; Lhoste, F.
Erschienen in:European journal of applied physiology
Veröffentlicht:54 (1986), 6, S. 632-637, Lit.
Format: Literatur (SPOLIT)
Publikationstyp: Zeitschriftenartikel
Medienart: Gedruckte Ressource Elektronische Ressource (online)
Sprache:Englisch
ISSN:1439-6319, 0301-5548
DOI:10.1007/BF00943352
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Erfassungsnummer:PU198603025699
Quelle:BISp

Abstract des Autors

The purpose of this study was to determine the response of plasma renin activity (PRA), plasma aldosterone concentration (PAC) and catecholamines to two graded exercises differing by posture. Seven male subjects (19-25 years) performed successively a running test on a treadmill and a swimming test in a 50-m swimming pool. Each exercise was increased in severity in 5-min steps with intervals of 1 min. Oxygen consumption, heart rate and blood lactate, measured every 5 min, showed a similar progression in energy expenditure until exhaustion, but there was a shorter time to exhaustion in the last step of the running test. PRA, PAC and catecholamines were increased after both types of exercise. The PRA increase was higher after the running test than after swimming. The PAC increase was slightly greater after running than swimming, but the difference was not significant. Plasma catecholamine was higher after the swimming test. These results suggest that the volume shift induced by the supine position and water pressure during swimming decreased the PRA response. The association after swimming compared to running of a decreased PRA and an enhanced catecholamine response rule out a strict dependence of renin release under the effect of plasma catecholamines and is evidence of the major role of neural pathways for renin secretion during physical exercise.