Movement Coordination: Identification of Age-Related Dynamics of its Development in Girls Aged 11-13

Abstract

The study objective is to determine the possibility of identifying the state of coordination abilities development in girls aged 11-13 using the methodology of multidimensional statistics. Materials and methods. The study involved girls aged 11 (n=20), 12 (n=23), 13 (n=19). To evaluate motor preparedness, the study recorded the results of motor tests, body height and weight. The IBM SPSS 20 statistical analysis software was used to process the study materials. A discriminant analysis was performed. Results. To identify the level of coordination abilities development in girls aged 11, 12 and 13, the following tests can be used: test 4 “Pull-ups (number of times)”, test 2 “Standing long jump (cm)”, test 6 “Evaluation of the sense of movement speed in sprinting”, and test 9 “Static equilibrium evaluation by E. Ya. Bondarevsky’s method”, which characterize relative and speed strength, the sense of running speed and vestibular stability. To identify the state of coordination abilities development in girls aged 12-13, the following tests can be used: test 12 “Rhythmic hand tapping”, test 13 “Rhythmic movements of upper and lower limbs”, test 5 “Sit-ups in 30 seconds”, test 7 “Evaluation of the ability to differentiate movement speed (reproduction accuracy of running speed at 80% intensity of maximum)”, which characterize the movement coordination of different parts of the body, strength endurance of abdominal muscles, and the evaluation of the ability to differentiate movement speed. Conclusions. A discriminant analysis made it possible to determine informative indicators for a comprehensive control of coordination abilities development in girls aged 11-13; to answer the questions as to how the states of coordination abilities development in girls aged 11, 12 and 13 significantly differ; what motor tests most substantially influence the differentiation of classes; what class the object belongs to based on the values of discriminant variables.