A Multimodal Physical Program Combining Abacus Use and Exercise to Improve Motor Coordination and Flexibility in Primary School Children.

: During early childhood, physical development plays a critical role in overall growth, influencing not only health but also academic and social outcomes. In this context, the present randomized controlled trial aims to analyze the effects of a combined intervention using physical exercise and abacus training on flexibility and motor coordination in early primary school children. : A total of 82 girls and boys participated in this study, of which 41 belonged to the experimental group that carried out a combined training of physical exercise and the use of an abacus for 12 weeks and 41 to a control group that did not receive any intervention. Flexibility was measured with the Sit and Reach test and motor coordination with the motor coordination test. : In this study, statistically significant improvements were observed in flexibility in both the right and left legs and in all domains related to motor coordination in the training group. : The results of this study support the effectiveness of a multidimensional approach that integrates physical and cognitive activities, such as the use of the abacus, to improve coordination and flexibility in children, contributing to comprehensive development in early childhood education.