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Vol. 55, No. 3, 2001
Issue release date: 2001
Section title: Original Paper
Horm Res 2001;55:155–159
(DOI:10.1159/000049988)

Plasma Oxytocin during Intense Exercise in Professional Cyclists

Chicharro J.L. · Hoyos J. · Bandrés F. · Gómez Gallego F. · Pérez M. · Lucía A.
aDepartamento de Enfermería, and bUnidad de Investigación en Fisiología del Ejercicio, Universidad Complutense de Madrid; cAgrupación Deportiva Banesto; dDepartamento de Toxicología y Legislación Sanitaria, Universidad Complutense de Madrid, and eDepartamento de Ciencias Morfológicas y Fisiología, Universidad Europea de Madrid, Spain

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Article / Publication Details

First-Page Preview
Abstract of Original Paper

Published online: 9/3/2001

Number of Print Pages: 5
Number of Figures: 1
Number of Tables: 1

ISSN: 1663-2818 (Print)
eISSN: 1663-2826 (Online)

For additional information: http://www.karger.com/HRP

Abstract

Aims: This study was designed to explore the plasma oxytocin (OT) response to exercise until exhaustion in trained male cyclists. Methods: Twelve professional cyclists (EXP group; age: 26 ± 2 years; VO2max: 4,804 ± 549 ml) and 10 sedentary young men (CONT group; age: 23 ± 2 years; VO2max: 3,146 ± 602 ml) performed a maximal incremental exercise test on a cycle ergometer. Evaluation was made of the oxygen uptake (VO2) and concentrations of blood lactate and plasma OT immediately before, during and immediately after the tests, respectively. Results: Significant increases (p < 0.01) related to exercise were recorded in VO2 and lactate concentration within each group, while no such changes were observed in OT levels. OT values, on the other hand, were significantly lower (p < 0.01) in EXP than in CONT throughout the tests. Conclusion: It was concluded that plasma OT shows no response to graded exercise until exhaustion in professional cyclists.


  

Author Contacts

José L. Chicharro
Escuela de Enfermería, Fisioterapia y Podología
Universidad Complutense, Facultad de Medicina
E–28040 Madrid (Spain)
Tel. +34 91 39 41 325, Fax +34 91 39 41 539, E-Mail jlchicharro@enf.ucm.es

  

Article Information

Received: Received: October 30, 2000
Accepted after revision: March 6, 2001
Number of Print Pages : 5
Number of Figures : 1, Number of Tables : 1, Number of References : 30

  

Publication Details

Hormone Research (International Journal of Experimental and Clinical Endocrinology)
Founded 1970 as ‘Hormones’ by M. Marois, Continued 1976 by J. Girard (1976–1995)
Official Organ of the European Society for Paediatric Endocrinology

Vol. 55, No. 3, Year 2001 (Cover Date: 2001)

Journal Editor: M.B. Ranke, Tübingen
ISSN: 0301–0163 (print), 1423–0046 (Online)

For additional information: http://www.karger.com/journals/hre


Article / Publication Details

First-Page Preview
Abstract of Original Paper

Published online: 9/3/2001

Number of Print Pages: 5
Number of Figures: 1
Number of Tables: 1

ISSN: 1663-2818 (Print)
eISSN: 1663-2826 (Online)

For additional information: http://www.karger.com/HRP


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