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En los deportes de equipo, el jugador debe de ser capaz de observar lo que ocurre en su entorno a través de un óptimo campo visual para mantener un nivel de atención en todas sus acciones. El objetivo de la presente investigación es comparar la atención visual y campo visual entre deportistas expertos y deportistas amateur. La muestra (N = 60) está formada por 36 deportistas con experiencia y 24 deportistas sin experiencia. El procedimiento utilizado para evaluar el campo visual es la téc-nica de tarea dual. Las variables independientes son el nivel de pericia y la amplitud del campo visual. Las variables dependientes son el éxito (tasa de acierto) en una tarea de doble atención y el tiempo de reacción de los estímulos periféricos. Los resultados afirman que los deportistas expertos obtienen menores errores en la tarea atencional que los deportistas no expertos y menor tiempo de reacción visual (p < .05). Consideramos que la experiencia deportiva es un factor determinante para la obtención de una mayor capacidad en tareas de atención y un mayor dominio en el reconocimiento de estímulos dentro del campo visual.Palabras clave: Atención visual; campo visual; experiencia; deportes de equipo. R e s u m e nCorrespondencia/correspondence: Iván González García Facultad de Ciencias de la Educación y del Deporte de Pontevedra. Universidad de Vigo. Campus A Xunqueira s/n. 36005. Pontevedra. España. E-mail: ivanglezgarcia@uvigo.esIn team sports, the player must be able to observe what is happening in his environment, through an optimal visual field, to maintain a level of care in all actions. The aim of this research is to compare the visual attention and the degree of the visual field between experienced athletes and amateur athletes. The sample (N = 60) is composed of 36 experienced athletes and 24 amateur atheletes. The procedure used to evaluate the visual field is the dual task technique. The independent variables are the type of sport and the amplitude of the visual field. The dependent variables are the number of successful (i.e., success rate) in a dual attention task and the reaction time of peripheral stimuli. Our data show that, to stimuli located in their visual field, the experienced atheletes get both fewer errors in the attentional task and a shorter visual reaction time than novice athletes (p < .05). Present results suggest that the experience is a determining factor in obtaining a greater capacity in attentional tasks and proficiency in the recognition of stimuli in the visual field.K e y w o r d s : V i s u a l a t t e n t i o n , v i s u a l f i e l d ; e x p e r t i s e ; s p o r t s t e a m . A b s t r a c tRecibido el 2 de diciembre 2010; Aceptado el 20 de febrero de 2011

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Background: The analysis of the competition in real time is currently one of the most important aspects to develop the sport. The purpose of the analysis should be creating valid and reliable knowledge for coaches to make the best decisions in a situation of competition. Objectives: This study was to determine the inter-observer reliability of the real-time observation tool for handball. Methods: Two groups of two observers each one were required to analyze the men's handball final of the London 2012 Olympic Games (average age: 23.72 ± 2.16 years; experience as handball players: 14.69 ± 1.92 years; experience as coaches: 4.64 ± 4.04 years). The process of training of the observers lasted 22 days, accounting twelve hours of work distributed in 12 training sessions. Results: The reliability showed a very good agreement between the independent observers (Kappa values were 0.96 and 0.90) in the registered events of both teams, and a very good agreement (Kappa values were 0.85 and 0.94) of the registered actions of the goalkeepers. The high coefficient of intra-class correlation with a value of 0.98 and the low value of the standard error with a 0.11 of the actions of the players of both teams showed a high level of inter-observer reliability. Conclusions: These results showed that the tool of observation in handball is reliable for registering the events of a real time match by well-trained observers. With the help of the HandballTAS and using technology, large volumes of real-time data were collected in a simple and easily usable.