Investigating the eye movement characteristics of basketball players executing 3-point shot at varied intensities and their correlation with shot accuracy.

Background: The 3-point shot plays a significant and pivotal role in the historical context of basketball competitions. Visual attention exerts a crucial influence on the shooting performance of basketball players. This study aims to investigate the eye movement characteristics exhibited by high-level basketball players while executing 3-point shot at varying exercise intensities, as well as explore the correlation between these eye movement characteristics and 3-point field goal percentage. Methods: A total of twenty highly skilled female basketball players were recruited as participants for this study. During the experiment, the participants wore an eye tracker to record their eye movement data while executing 3-point shot at varying exercise intensities (low, moderate, and high). The collected eye movement data was analyzed using Tobii Pro Lab software. Additionally, the participants' exercise intensity was monitored by wearing Polar Team Pro sensors. Results: The average number of fixations during the execution of a 3-point shot at three exercise intensities exhibited statistically significant differences in the front, bottom, top left, and bottom right. Moreover, notable disparities were observed in the average fixation duration for the front, bottom, and bottom right. The average total number of fixations and fixation duration in the moderate intensity shot were comparatively lower than those observed in the low and high intensity shots, while the average number of fixations and percentage of fixation duration on the front were relatively higher compared to those in the low and high intensity shots. Under varying intensities, there were no significant differences observed in the average number of fixations and the 3-point field goal percentage each AOI; however, a significantly positive correlation was found between the front average fixation duration and the 3-point field goal percentage. Conclusion: During the execution of a moderate intensity 3-point shot, the player's fixation is focused and stable, their information search strategy is efficient, and their information processing is precise. Variations in exercise intensity result in changes to both the information search strategy and degree of processing. Fixating on the front has a positive impact on 3-point field goal percentage.