Effects of acute salbutamol intake during a Wingate test

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Deutscher übersetzter Titel:Auswirkungen akuter Salbutamoleinnahme während eines Wingate-Tests
Autor:Collomp, K.; LePanse, B.; Portier, H.; Lecoq, A.-M.; Jaffré, C.; Beaupied, H.; Richard, O.; Benhamou, L.; Courteix, D.; Ceaurriz, J. de
Erschienen in:International journal of sports medicine
Veröffentlicht:26 (2005), 7, S. 513-517, Lit.
Format: Literatur (SPOLIT)
Publikationstyp: Zeitschriftenartikel
Medienart: Gedruckte Ressource Elektronische Ressource (online)
Sprache:Englisch
ISSN:0172-4622, 1439-3964
DOI:10.1055/s-2004-821223
Schlagworte:
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Erfassungsnummer:PU200511002430
Quelle:BISp

Abstract des Autors

To investigate the impact of acute salbutamol intake on performance and selected hormonal and metabolic variables during supramaximal exercise, 13 recreational male athletes performed two 30-second Wingate tests after either placebo (PLA, lactose) or salbutamol (SAL, 4 mg) oral administration, according to a double-blind and randomized protocol. Blood samples collected at rest, end of the Wingate test, recovery (5, 10, 15 min) were tested for growth hormone (GH), insulin (INS), blood glucose (GLU), and lactate determination. We found the peak and mean power performed significantly increased after SAL vs. PLA (PPSAL: 896 ± 46; PPPLA: 819 ± 57 W; MPSAL: 585 ± 27; MPPLA: 534 ± 35 W, p<0.05), whereas no change was observed in the fatigue index. Blood glucose and INS were significantly increased by SAL at rest, at the end of the Wingate test, and during the 5 first minutes of recovery (p<0.05). Plasma GH was significantly decreased by SAL (p<0.05) during the recovery whereas end-exercise and recovery blood lactate tended but were not significantly increased after SAL vs. PLA. From these data, acute salbutamol intake at therapeutical dosage did appear to improve peak power and mean power during a supramaximal exercise, but the mechanisms involved need further investigation. Verf.-Referat