The relative age effect, which is the advantage obtained by an athlete born closer to the beginni... more The relative age effect, which is the advantage obtained by an athlete born closer to the beginning of the
selection year, has been shown to be an important variable in the development of soccer players. This study aimed to
evaluate the influence of the season of birth on the choice reaction time (CRT) of elite soccer athletes in the under 13
years of age category. Seventy-six athletes participated who were 13.36 ± 0.45 years old. The volunteers were tested with
a CRT test, and the results were divided according to the semester of birth (S1 or S2). We conducted a t-test in order to
compare the results between groups and a Pearson correlation analysis to verify the associations between variables. The
results indicated no differences in reaction time (r= .033 and p = .772) or movement time (r = .0073 and p = .530). It
was concluded that for this population, the season of birth does not influence the performance of the capabilities tested
O estresse em árbitros tem sido objeto de estudo em várias modalidades esportivas, entretanto pou... more O estresse em árbitros tem sido objeto de estudo em várias modalidades esportivas, entretanto pouco se sabe sobre as interferências deste constructo na atividade de árbitros de ginástica rítmica (GR). O objetivo deste estudo foi fazer uma revisão sistemática sobre o estresse na arbitragem de GR. Foi realizada uma busca de artigos publicados entre os anos de 1993 e 2013 nas bases de dados Scopus, SPORTDiscus, SocINDEX e Web of Science. Os resultados apontam para um número reduzido de publicações sobre o estresse em árbitros de ginástica e também em outras modalidades. Foram identificadas particularidades entre os tipos de estresse das ginásticas e de outras modalidades esportivas. Conclui-se que o estresse que afeta as atividades laborais dos árbitros de GR possui características biopsicossociais e que existe necessidade de uma maior produtividade intelectual nesta área, objetivando avançar no entendimento de como estas variáveis interferem no desempenho destes profissionais
The relative age effect, which is the advantage obtained by an athlete born closer to the beginni... more The relative age effect, which is the advantage obtained by an athlete born closer to the beginning of the
selection year, has been shown to be an important variable in the development of soccer players. This study aimed to
evaluate the influence of the season of birth on the choice reaction time (CRT) of elite soccer athletes in the under 13
years of age category. Seventy-six athletes participated who were 13.36 ± 0.45 years old. The volunteers were tested with
a CRT test, and the results were divided according to the semester of birth (S1 or S2). We conducted a t-test in order to
compare the results between groups and a Pearson correlation analysis to verify the associations between variables. The
results indicated no differences in reaction time (r= .033 and p = .772) or movement time (r = .0073 and p = .530). It
was concluded that for this population, the season of birth does not influence the performance of the capabilities tested
O estresse em árbitros tem sido objeto de estudo em várias modalidades esportivas, entretanto pou... more O estresse em árbitros tem sido objeto de estudo em várias modalidades esportivas, entretanto pouco se sabe sobre as interferências deste constructo na atividade de árbitros de ginástica rítmica (GR). O objetivo deste estudo foi fazer uma revisão sistemática sobre o estresse na arbitragem de GR. Foi realizada uma busca de artigos publicados entre os anos de 1993 e 2013 nas bases de dados Scopus, SPORTDiscus, SocINDEX e Web of Science. Os resultados apontam para um número reduzido de publicações sobre o estresse em árbitros de ginástica e também em outras modalidades. Foram identificadas particularidades entre os tipos de estresse das ginásticas e de outras modalidades esportivas. Conclui-se que o estresse que afeta as atividades laborais dos árbitros de GR possui características biopsicossociais e que existe necessidade de uma maior produtividade intelectual nesta área, objetivando avançar no entendimento de como estas variáveis interferem no desempenho destes profissionais
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Papers by Varley Costa
selection year, has been shown to be an important variable in the development of soccer players. This study aimed to
evaluate the influence of the season of birth on the choice reaction time (CRT) of elite soccer athletes in the under 13
years of age category. Seventy-six athletes participated who were 13.36 ± 0.45 years old. The volunteers were tested with
a CRT test, and the results were divided according to the semester of birth (S1 or S2). We conducted a t-test in order to
compare the results between groups and a Pearson correlation analysis to verify the associations between variables. The
results indicated no differences in reaction time (r= .033 and p = .772) or movement time (r = .0073 and p = .530). It
was concluded that for this population, the season of birth does not influence the performance of the capabilities tested
selection year, has been shown to be an important variable in the development of soccer players. This study aimed to
evaluate the influence of the season of birth on the choice reaction time (CRT) of elite soccer athletes in the under 13
years of age category. Seventy-six athletes participated who were 13.36 ± 0.45 years old. The volunteers were tested with
a CRT test, and the results were divided according to the semester of birth (S1 or S2). We conducted a t-test in order to
compare the results between groups and a Pearson correlation analysis to verify the associations between variables. The
results indicated no differences in reaction time (r= .033 and p = .772) or movement time (r = .0073 and p = .530). It
was concluded that for this population, the season of birth does not influence the performance of the capabilities tested