RESUMO
This study compared decision-making (DM) of experienced and novice volleyball coaches while measuring blood flow brain activation with functional near-infrared spectroscopy. We sampled 34 coaches (mean [ M] age of 32.5, standard deviation [ SD] = 9.4 years) divided into two experience groups: (a) novice ( M = 2.8, SD = 1.9 years) and (b) experienced (M = 19, SD = 7.2 years). We evaluated coaches' DM through their responses to video-based scenarios of attacks performed in the extremities of the net within the Declarative Tactical Knowledge Test in Volleyball. We found no significant DM differences between the two groups of coaches ( p = .063), though novice (vs. experienced) coaches showed greater blood flow of the prefrontal cortex when visualizing the game situations. While experienced coaches may have better prefrontal neural efficiency during DM in these situations, further research is needed to evaluate other cerebral areas; since blood flow is an indirect measure of neural efficiency, and activity in remaining cortical components was unknown in this study.
Assuntos
Encéfalo/diagnóstico por imagem , Tomada de Decisões/fisiologia , Voleibol , Adulto , Encéfalo/irrigação sanguínea , Encéfalo/fisiologia , Neuroimagem Funcional , Humanos , Conhecimento , Tutoria , Espectroscopia de Luz Próxima ao Infravermelho , Adulto JovemRESUMO
O objetivo do presente estudo consistiu no reconhecimento das necessidades de formação das competências profissionais de treinadores de Futebol em função dos anos de experiência profissional e da formação federativa. A amostra foi constituída por 81 treinadores portugueses. A recolha dos dados foi realizada através da aplicação de um questionário após validação de construção e de conteúdo. Como procedimentos estatísticos, recorremos ao teste paramétrico One-Way ANOVA para a comparação entre dois grupos e para mais de dois grupos foram estimados os Post-Hocs com recurso ao teste de Tukey. Os resultados mostraram que os treinadores com formação federativa mais elevada, níveis II e III, reconhecem menores necessidades de formação que os treinadores sem formação nas áreas do Treino, Competição e Papel de Formador. Por sua vez, os treinadores mais experientes reconheceram menores necessidades de formação nos domínios do Treino, da Gestão Desportiva e do Papel de Formador em relação aos menos experientes.
The aim of the present study consisted in the recognition of Football coaches perceptions of training needs related to the professional competences according to their experience and level of certification, as coach. A sample of 81 Portuguese coaches answered a questionnaire applied after its construction and content validation. The statistical procedure used was One-Way ANOVA to make comparison between two groups and the Tukey' test for post-hoc comparisons. The results showed that the coaches with the highest level of certification, levels II and III, recognized lower training needs than coaches without certification in the areas of Training, Competition and Coach Education. Moreover, the more experienced coaches recognized, also, lower training needs than less experienced coaches in the areas of Training, Sport Management and Coach Education.