Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/366
Type: Artigo de periódico
Title: SALIVARY IMMUNOGLOBULIN A RESPONSE TO A MATCH IN TOP-LEVEL BRAZILIAN SOCCER PLAYERS
Author: MOREIRA, Alexandre
ARSATI, Franco
CURY, Patricia Ramos
FRANCISCON, Clovis
OLIVEIRA, Paulo Roberto de
ARAUJO, Vera Cavalcanti de
Abstract: Moreira, A, Arsati, F, Cury, PR, Franciscon, C, Oliveira, PR, and Araujo, VC. Salivary immunoglobulin a response to a match in top-level brazilian soccer players. J Strength Cond Res 23(7): 1968-1973, 2009-It has been suggested that several parameters of mucosal immunity, including salivary immunoglobulin A (s-IgA), are affected by heavy exercise either in field sports or in the laboratory environment. Few observations have been made during a true sporting environment, particularly in professional soccer. We tested the hypothesis that salivary IgA levels will be decreased after a 70-minute regulation in a top-level professional soccer friendly match. Saliva samples from 24 male professional soccer players collected before and after the match were analyzed. Salivary immunoglobulin A concentration was measured by enzyme-linked immunosorbent assay and expressed as the absolute concentration (s-IgAabs), s-IgA relative to total protein concentration (IgA-Pro), and the secretion rate of IgA (s-IgArate). Rate of perceived exertion (RPE) was used to monitor the exercise intensity. The paired t-test showed no significant changes in s-IgAabs and s-IgArate (p > 0.05) from PRE to POST match. However, a significant (p < 0.05) increase in total protein concentration (1.46 +/- 0.4 to 2.00 +/- 07) and a decrease in IgA-Pro were observed. The best and most significant correlation was obtained with the RPE and changes in IgA-Pro (rs = -0.43) and could indicate that this expression may be an interesting marker of intensity in a soccer match. However, further investigation regarding exercise intensity, protein concentration, and immune suppression, particularly in team sports, is warranted. From a practical application, the variability of the responses among the players leads us to suggest that there is a need to individually analyze the results with team sports. Some athletes showed a decrease in s-IgA expressions, suggesting the need for taking protective actions to minimize contact with cold viruses or even reducing the training load.
Subject: immune function
sports
saliva
IgA
Country: Estados Unidos
Editor: LIPPINCOTT WILLIAMS & WILKINS
Citation: JOURNAL OF STRENGTH AND CONDITIONING RESEARCH, v.23, n.7, p.1968-1973, 2009
Rights: fechado
Identifier DOI: 10.1519/JSC.0b013e3181b3dd7a
Address: http://apps.isiknowledge.com/InboundService.do?Func=Frame&product=WOS&action=retrieve&SrcApp=EndNote&UT=000271569300008&Init=Yes&SrcAuth=ResearchSoft&mode=FullRecord
http://dx.doi.org/10.1519/JSC.0b013e3181b3dd7a
Date Issue: 2009
Appears in Collections:FEF - Artigos e Materiais de Revistas Científicas

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