ABSTRACT
The open nature of basketball gives it a large uncertainty that makes hard the tactical analysis of the situations that happen in the game. Specifically, screens are one of the offensive tactical elements most used in basketball and one example of a tactical situation that needs the highest preparation level to get a good performance in the competition. The aim of this study is to differentiate these player behaviors by gender using data mining and polar coordinates analysis. Therefore, one ad hoc observational tool made by 17 criteria and 97 exhaustive and mutually exclusive (E/ME) categories has been designed and validated using the data quality analysis (correlation coefficients and concordance index 0.98) and generalizability analysis (G coefficients 0.94) to perform such a study. The observational design is nomothetic, punctual, and multidimensional. A total of 176 ball screens situations have been analyzed for the men's category and 118 for women's category, corresponding to three different teams of each gender playing in the highest competition level in Spain during the 2018/2019 season using Hoisan software tool. The analysis of the relationships among behaviors has been performed using Polar Coordinates analysis as well as data mining analysis: clustering and decision tree classifier. Results show significant relationships that allow us to tactically interpret the pick and roll situations in men's and women's professional basketball players in Spain, allowing us to develop more intervention programs which will optimize training and improve players performance.
ABSTRACT
Nowadays, getting advantageous offensive situations in high-level basketball is being increasingly harder, so taking advantage of any situation in the game since the team has the ball is essential to be competitive. Therefore, the goal to achieve in this study is to evaluate using a mixed method strategy the behaviors happening in the application of the technical-tactical means performed in the transition play of professional basketball in Spain. An ad hoc observation tool made of 11 criteria and 83 exhaustive and mutually exclusive categories (E/ME) has been designed and validated by means of data quality and generalizability analyses. Indexes obtained show high reliability and validity allowing the proposed actions to be recorded (correlation coefficients are above 0.95 and generalizability coefficients are above 0.90 in all cases). A total number of 128 situations corresponding to eight games of Unicaja de Málaga in the Endesa League in the 18/19 season were observed with the Hoisan software. The analysis of the relationships among behaviors was performed using the polar coordinates technique where the one-on-one initiation, outside the zone, has been used as focal behavior. The estimation of the functions representing the vectors has also been performed to model the best fit that estimates, starting from a focal category, the relationship among this focal behavior and the rest of the mating behaviors for possible future observations. The results show significant relationships between the selected focal behavior and the mating behaviors, showing indications of behaviors allowing tactical interpretation of the game and the definition of intervention programs to improve the performance of the team.
ABSTRACT
En los últimos años se ha incrementado el interés por conocer las acciones más efectivas durante la competición ya que este hecho se ha mostrado esencial para mejorar el rendimiento de los jugadores en el deporte de élite; particularmente en los deportes colectivos el análisis táctico ha crecido de forma exponencial. El objetivo de este estudio fue detectar las relaciones que se establecen entre las conductas de finalización de los jugadores interiores de un equipo de baloncesto y su repercusión en el rendimiento del equipo. Para ello, y utilizando un diseño nomotético, de seguimientoy multidimensional, se realizó un análisis de coordenadas polares con las observaciones del juego de la Selección Española de Baloncesto Senior Masculina durante su participación en el Campeonato de Europa de 2015. La herramienta de observación creada ha superado el análisis de calidad del dato exigible en Metodología Observacional y está compuesta por 5 criterios y 29 categorías exhaustivas y mutuamente excluyentes. Se registraron un total de 316 acciones ofensivas, que pusieron de manifiesto la influencia de los jugadores que ocupan las posiciones interiores en el ataque estático. Los resultados muestran una alta efectividad cuando los ataques son acabados por ellos y la alta producción ofensiva de estos jugadores en acciones individuales, siendo capaces de conseguir canastas o provocar faltas a sus defensores. El análisis de coordenadas polares se ha mostrado como una técnica útil para el análisis táctico de las conductas que suceden en el deporte de competición. (AU)
In recent years, there has been an increased interest in knowing the most effective actions during competition, as this fact has proven essential to improve the performance of players in elite sport; particularly in team sports, tactical analysis has grownexponentially. The objective of this study was to detect the relationships that were obtained between the finishing behaviors of the inside players of a basketball team and it is impact on team performance. To do so, and using nomothetic, follow-up and multidimensional observational design, polar coordinates analysis was performed from the observations of the game of the Spanish men basketball team during European Championships in 2015. The observational tool, formed by 5 criteria and 29 exhaustive and mutually exclusive categories, was created and passed the data quality analysis required in Observational Methodology. A total of 316 offensive actions were registered and revealed the influence of the inside players in the static attack. The results showed ahigh effectiveness when the attacks are finished by inside players, and the high offensive production of these players in individual actions, being able to get baskets or cause fouls to their defenders. Polar coordinates analysis has been shown as a useful technique to tactical analysis of the behaviors that occur in competitive sport. (AU)
Nos últimos anos tem havido um interesse crescente em conhecer as acções mais eficazes durante a competição, uma vez que este facto se revelou essencial para melhorar o desempenho dos jogadores no desporto de elite; particularmente nos desportos colectivos, a análise táctica tem crescido exponencialmente. O objectivo deste estudo era detectar as relações estabelecidas entre os comportamentos finais dos jogadores internos de uma equipa de basquetebol e o seu impacto no desempenho da equipa. Para o fazer, e utilizando um design nomotético, de seguimento e multidimensional, foi realizada uma análise de coordenadas polares com as observações do jogo da Selecção Espanhola de Basquetebol Masculino Sénior durante a sua participação no Campeonato Europeu de 2015. O instrumento de observação criado passou a análise da qualidade dos dados exigida na Metodologia de Observação e é composto por 5 critérios e 29 categorias exaustivas e mutuamente excludentes. Foi registado um total de 316 acções ofensivas, que mostraram a influência de jogadores que ocupavam posições internas no ataque estático. Os resultados mostram uma elevada eficácia quando os ataques são finalizados por eles e a elevada produção ofensiva destes jogadores em acções individuais, podendo obter cestos ou causar faltas aos seus defensores. A análise das coordenadas polares demonstrouser uma técnica útil para a análise táctica dos comportamentos que ocorrem no desporto de competição. (AU)
