Association Between Performance on Visual Tests and Batting Performance Indicators in Highly Trained Baseball Players

Visual perception is crucial for successfully executing motor skills in interceptive sports like baseball. Understanding the contribution of visual skills (VS) to baseball performance is essential for talent selection and development. Some evidence suggests that performance on visual tests is predictive of batting performance, though these findings are not consistently replicated across studies. Therefore, the aim of this study is to associate a broad spectrum of visual performance indicators with a set of batting performance variables in highly trained baseball players by combining different methodological approaches used in previous studies. Forty-five highly trained male baseball players from the same club, aged between 15 and 19 years old (<i>mean</i> = 17.25), underwent a thorough battery of visual tests under standardized conditions. Twenty-one variables of VS were collected and associated with ten performance indicators, including game statistics, players' ranking, age, years of practice, and position. Frequentist correlations and <i>t</i>-tests revealed that 17 out of the 210 associations (8.09%) reached our unadjusted threshold level and thus indicated a positive and statistically significant association. Bayesian analyses identified 34 associations (16.19%) that supported a positive association between VS and performance indicators, but only two of them (0.95%) revealed a moderate level of evidence in favor of the positive association. Therefore, this study provides limited support to the hypothesis that performance on visual tests predicts batting performance. The homogeneity of the sample and potential non-linear relations between visual and batting performance may account for these findings.