Acquiring optimal motor skills in preschool children presents a key element for proper psychomotor development. Therefore, the aim of this study was to determine gender differences and the effects of a multi-year exercise program on the level of motor skills in 161 preschool children (5-6 yo). Participants were divided into one control and three experimental groups. Motor skills were assessed with the Bruininks-Oseretsky Test of Motor Proficiency (BOT-2). To determine the difference in scores for each BOT-2 test between control and experimental groups, one-way ANOVA was used for girls and boys separately, while two-way ANOVA was used to determine the difference between the genders in the overall BOT-2 score. The results indicate that a 1-year multilateral exercise program has a positive effect on the level of motor skills in preschool children. Interestingly, additional years of participation in exercise programs yielded the maintenance of acquired motor skills level. Additionally, the exercise program affected preschool girls more than boys considering both individual and composite BOT-2 scores. According to the findings of this study, the presented exercise program could have potential benefits on multilateral development of the motor skills in preschool children, which could facilitate the balance of locomotor and manipulative skills. Therefore, the integration of multilateral programs intended for preschool children could be considered for implementation within the kindergarten curriculum.
Keywords: exercise effects; fundamental motor skill; motor skills; pediatrics; physical activity; sex differences.