Immune Responses, Upper Respiratory Illness Symptoms, And Load Changes In Young Athletes During The Preparatory Period Of The Training Periodization.

dc.creatorBrunelli, Diego Trevisan
dc.creatorBorin, João Paulo
dc.creatorRodrigues, Ariel
dc.creatorBonganha, Valéria
dc.creatorPrestes, Jonato
dc.creatorMontagner, Paulo César
dc.creatorCavaglieri, Cláudia Regina
dc.date2012
dc.date2015-11-27T13:29:11Z
dc.date2015-11-27T13:29:11Z
dc.date.accessioned2018-03-29T01:16:43Z
dc.date.available2018-03-29T01:16:43Z
dc.identifierOpen Access Journal Of Sports Medicine. v. 3, p. 43-9, 2012.
dc.identifier1179-1543
dc.identifier10.2147/OAJSM.S30962
dc.identifierhttp://www.ncbi.nlm.nih.gov/pubmed/24198586
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/200358
dc.identifier24198586
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1300591
dc.descriptionThe aim of this study was to investigate the immunological responses and the association between variation in exercise load and self-reported occurrence of upper respiratory illness (URI) symptoms in young basketball athletes. The sample was composed of twelve young male athletes aged 12.7 ± 0.6 years, with a height of 170 ± 10 cm, body mass of 57.6 ± 12.6 kg, and fat-free mass of 18.7 ± 5.9%. Daily training and occurrences of URI symptoms were recorded. Blood samples were collected at baseline (M1) and after 8 weeks (M2) of the preparatory period of periodization training to measure total and differential leukocyte counts, serum interleukin-6 (IL-6), and tumor necrosis factor-α (TNF-α). There was a significant decrease in monocytes at M2 compared to M1 (P = 0.004). There were no significant alterations in total leukocytes (P = 0.07), neutrophils (P = 0.07), or lymphocytes (P = 0.09). No significant changes in plasma concentrations of TNF-α (P = 0.30) or IL-6 (P = 0.90) were found. The weekly load from week 6 was higher when compared with weeks 1, 2, 4, and 8 (P < 0.05), and week 8 was the lowest when compared with week 5 (P < 0.05). Self-reported URI incidences were highest at weeks 1 and 2. Variations in weekly training load during the preparatory period were not correlated with changes in self-reported occurrence of URI incidences, suggesting that young athletes may have an attenuated response to exercise-induced perturbations to the immune system.
dc.description3
dc.description43-9
dc.languageeng
dc.relationOpen Access Journal Of Sports Medicine
dc.relationOpen Access J Sports Med
dc.rightsaberto
dc.rights
dc.sourcePubMed
dc.subjectCytokines
dc.subjectImmune System
dc.subjectUpper Respiratory Illness
dc.subjectYoung Athletes
dc.titleImmune Responses, Upper Respiratory Illness Symptoms, And Load Changes In Young Athletes During The Preparatory Period Of The Training Periodization.
dc.typeArtículos de revistas


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