Plasma volume responses to consecutive anaerobic exercise tests

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Deutscher übersetzter Titel:Reaktionen des Plasmavolumens auf aufeinanderfolgende anaerobe Leistungstests
Autor:Whittlesey, M.J.; Maresh, C.M.; Armstrong, L.E.; Morocco, T.S.; Hannon, D.R.; Gabaree, C.L.V.; Hoffman, J.R.
Erschienen in:International journal of sports medicine
Veröffentlicht:17 (1996), 4, S. 268-271, Lit.
Format: Literatur (SPOLIT)
Publikationstyp: Zeitschriftenartikel
Medienart: Gedruckte Ressource Elektronische Ressource (online)
Sprache:Englisch
ISSN:0172-4622, 1439-3964
DOI:10.1055/s-2007-972845
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Erfassungsnummer:PU199606108467
Quelle:BISp

Abstract des Autors

This study examined the change in plasma volume (%delta-PV) in response to consecutive Wingate tests (30 sec Anaerobic Power test). Twelve active men (21+/-1.6 yr, 81.3+/-6.6 kg) performed two Wingate tests (W1 and W2, separated by 10 min) on three occasions (T1-T3, tests were two weeks apart). Exercise resistance was maintained at 75 g/kg body weight during testing. Blood samples were taken immediately before (Pre) and after (IP) W1 and W2. There were no significant differences in hematocrit, hemoglobin, mean power (MP) or peak power (PP) between T1-T3. There was a marked hemoconcentration in response to W1 (IP W1, -17.4+/-2.6 %delta-PV), with a further, but not significantly greater, hemoconcentration following W2 (IP W2, -8.2+/-1.1 %delta-PV). The %delta-PV, between PRE W1 and IP W2 was -20.1+/-3.1%. These results suggest that an existing hemoconcentration (W1) may affect the magnitude of the %delta-PV response to subsequent supramaximal exercise (W2). Verf.-Referat