<rdf:RDF xmlns:rdf="http://www.openarchives.org/OAI/2.0/rdf/" xmlns:ow="http://www.ontoweb.org/ontology/1#" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:ds="http://dspace.org/ds/elements/1.1/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:doc="http://www.lyncode.com/xoai" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/rdf/ http://www.openarchives.org/OAI/2.0/rdf.xsd">
   <ow:Publication rdf:about="oai:digibug.ugr.es:10481/32739">
      <dc:title>Prolactin responses to stress induced by a competitive swimming effort</dc:title>
      <dc:creator>Carrasco Páez, Luis</dc:creator>
      <dc:creator>Luque, G. T.</dc:creator>
      <dc:creator>Gutiérrez, C. V.</dc:creator>
      <dc:creator>Mendoza Oltras, Carlos</dc:creator>
      <dc:subject>Anxiety</dc:subject>
      <dc:subject>Hormonal release</dc:subject>
      <dc:subject>Anaerobic exercise</dc:subject>
      <dc:subject>Competition</dc:subject>
      <dc:description>Purpose: The aim of the present study was to investigate the changes in prolactin (PRL) plasma concentrations induced by competitive swimming practice. Methods: Twenty-three males, 13 trained swimmers (experimental group) and 10 sedentary and healthy students (age-matched control group) took part in this investigation. The swimmers were assessed at three points: basal conditions, pre- and post-swimming competition (100 m freestyle), whereas subjects from the control group only undertook the basal trial. The variables analysed were: several body composition measures, anxiety level (STAI questionnaire), PRL and lactic acid concentrations. Results: No statistical differences were observed in PRL basal levels between groups. An evident PRL response to pre-competition psychological stress was observed in the experimental group, since the PRL plasma concentration rose from 4.02±0.53 ng/ml (basal conditions) to 5.52±0.53 ng/ml (p≤0.05). The PRL response to the competitive effort produced an important increase in its plasma concentration (10.07±1.59 ng/ml), showed statistical differences from pre-competition (p≤0.01) and from basal conditions (p≤0.001). A significant rise in plasma lactate levels just at the end of the effort was found, although it did not correlate with PRL levels in the same situation. Conclusion: While we observed a remarkable response of PRL to psychological and physiological stress induced by a short term competitive effort in swimming, no changes in PRL basal levels were exhibited with swim training. More research is needed to clarify these findings.</dc:description>
      <dc:date>2014-07-22T11:44:50Z</dc:date>
      <dc:date>2014-07-22T11:44:50Z</dc:date>
      <dc:date>2007</dc:date>
      <dc:type>info:eu-repo/semantics/article</dc:type>
      <dc:identifier>Carrasco Páez, L.; et al. Prolactin responses to stress induced by a competitive swimming effort. Biology of Sport, 24(4): 311-323 (2007). [http://hdl.handle.net/10481/32739]</dc:identifier>
      <dc:identifier>0860-021X</dc:identifier>
      <dc:identifier>http://hdl.handle.net/10481/32739</dc:identifier>
      <dc:language>eng</dc:language>
      <dc:rights>http://creativecommons.org/licenses/by-nc-nd/3.0/</dc:rights>
      <dc:rights>info:eu-repo/semantics/openAccess</dc:rights>
      <dc:rights>Creative Commons Attribution-NonCommercial-NoDerivs 3.0 License</dc:rights>
      <dc:publisher>Instytut Sportu</dc:publisher>
   </ow:Publication>
</rdf:RDF>