Abstract
The article discusses the impact of activity-related games on the physical development of school-age children. The purpose of the study is to identify the features of the dynamics of the main physical qualities of students under the influence of activity-related games, taking into account age and sex differences. School-age children, divided into age groups, took part in the pedagogical experiment. Activity-related games included in the structure of training sessions were used as the main means of pedagogical influence. The level of physical fitness was assessed by pedagogical testing aimed at determining the indicators of speed, endurance, explosive strength and strength endurance. The growth factor was used to analyze the changes. The results of the study show that the most pronounced positive dynamics are observed in general and strength endurance indicators, especially in children of age groups, while speed properties and explosive strength are characterized by an average growth rate. The results confirm the effectiveness of activity-related games as a means of developing the functional and strength components of physical culture of students and justify the need to combine them with specialized exercises for complex physical development.