摘要：The aim of the research is to modernize and experimentally test the «Pilates» training program as an element of additional physical education to improve the girls' aged 15-17, physical health and functional characteristics level. Materials and methods. The pedagogical experiment was conducted during the 2019-2020 academic year at school No. 11 of Yemanzhelinsky municipal district in Chelyabinsk region (Russia). 15 girls of high school age (15-17 years) participated in it. Additional classes were held in the afternoon, outside the grid mandatory training hours for physical education 2 times a week for 60 minutes, as we developed the program «Physical culture and health system «Pilates» for girls, aged 15-17», which is designed for 144 academic hours, including 12 theoretical hours and 96 practical ones. Self-tuition classes are given 48 hours (once a week for 60 minutes). In additional classes, the girls were performing basic «Pilates» exercises on mats. After two months of training, basic exercises were performed with small equipment, using the complexes of exercises developed by us with a «Pilates ball» and an isotonic «Pilates ring». Before and after the experiment, the schoolgirls' physical health level was assessed using an express-method based on a point assessment of anthropometric and physiometric indicators. Hypoxic breath-holding tests were performed. Physical fitness of the girls was determined using motor tests. Reserarch results. The developed and tested fitness technology for improving the girls', aged 15-17, physical health and functional indicators level in the conditions of additional physical education had a pronounced positive effect on these indicators' values. There was a significant increase in the schoolgirls' physical health and functional fitness indicators values at the end of the experiment. Conclusions. The proposed upgraded fitness technology based on «Pilates» system in additional physical education can be recommended for improving schoolgirls' aged 15-17 physical health and functional indicators level.
