Comparative analysis of motor coordination and Body Mass Index in schoolchildren who participate only in physical education classes and extracurricular sports ; Análisis comparativo de la coordinación motora e Índice de Masa Corporal en escolares que partici-pan únicamente en clases de educación física y deportes extraescolares (Comparative analysis of motor coordination and Body Mass Index in schoolchildren who participate only in physical education classes and extracurricular sports) ; Análise comparativa da coordenação motora e do Índice de Massa Corporal em escolares que participam apenas de aulas de educação física e esportes extracurriculares

The study aimed to compare Motor Coordination and Body Mass Index in schoolchildren who participate only in Physical education classes with those who also participate in extracurricular sports. The study was cross-sectional, descriptive, and comparative. The sample was made up of 96 schoolchildren (41 girls and 55 boys, 11.7± 0.7 years). Height and body weight were measured. Body Mass Index (BMI) was calculated. The evaluation of MC was performed with the Körperkoordinations test Für Kinder (KTK). The results revealed significant differences between the Extracurricular Sports Group (GDEX) and the Physical Education Group (GEF), in One-legged hopping for height, Lateral Transposition, KTK total score (p<0.01) and Lateral Jumps (p<0.05), with effect size (ES) “moderate” (d= 0.40 to 0.66). Likewise, the GDEX schoolchildren showed better values with respect to the GEF in Body Weight (p<0.05), and BMI (p<0.01), ES “moderate” (d= -0.49 and -0.54; respectively). It is concluded that schoolchildren who participate in extracurricular sports have better levels of Motor Coordination, BMI, and body weight than those who only participate in Physical education classes. Key words: Motor coordination; Schoolchildren; Physical education; school sports; extracurricular activities. ; El estudio tuvo como objetivo comparar la coordinación motora y el Índice de Masa Corporal en escolares que participan solo en las clases de educación física con aquellos que además participan de talleres deportivos extraescolares. El estudio fue transversal, de alcance descriptivo y comparativo. La muestra estuvo compuesta por 96 escolares (41 niñas y 55 niños de 11.7± 0.7 años). Se midieron la talla y el peso corporal. Se calculó el Índice de Masa Corporal (IMC). La evaluación de la coordinación motora se llevó a cabo utilizando la batería de Körperkoordinations test Für Kinder (KTK). Los resultados revelaron diferencias significativas entre el Grupo Deporte Extraescolar (GDEX) y el Grupo Educación Física (GEF), en Saltos Monopedales, ...