摘要:The research aim is to work out and evaluate an experimental method for developing of 16–17-year-old Students,strength abilities effectiveness in the conditions of additional physical culture and health classes in a gym. Materials and methods. A randomized selection method was used to select a group of students,aged 16-17,(15 people),taking part in classes using an experimental method in additional school physical education system. The classes were based on the type of circular training,they were held three times a week,taking into account the age characteristics of the students' strength abilities development and performing complexes of strength exercises using simulators and training devices with local and regional physical exercises inclusion. Research results. The positive influence of the experimental program of the students' (men) aged 16-17 strength abilities (dynamic,static strength) development training in the conditions of additional physical education at school was established. At the end of the experiment,there was an increase in the number of students with «average» and «above average» physical health levels and a decrease in the number of young men with «low» levels of strength development. The proposed experimental method increased the students' physical fitness level,as evidenced by a significant increase in motor tests indicators values. The values of the flexibility indicators of young men increased by 20%,by 12.3% in speed,by 11.4% in endurance and by 7.9% in speed-strength abilities. The number of young men with "medium" and "high" levels of the value of indicators of motor tests increased. Conclusions. The proposed experimental method for developing students' aged 16-17 strength abilities in additional physical education at school has shown high efficiency and can be recommended for improving students' physical health and physical fitness level.