Прокопьев, Н.Я. Дыхательная система у мальчиков 8 - 11 лет в состоянии покоя и после дозированной физической нагрузки = Respiratory System at 8 - 11 Year Old Boys in Condition of Rest and After Dosed out Physical Loading / Н.Я. Прокопьев // Теория и практика физ. культуры. - 2005. - № 8. - С. 15-16.
The purpose of the research was to study the condition of respiratory system of 8-11 year-old boys (the Khanty, the Selkupy and the Russian) at rest and after dosed out physical loading. There were surveyed 386 boys in the age of 8-11 years living on the territory of autonomous regions of the Tyumen region. Among them the Selkupy - 31,3 %, the Khanty - 35 % and the Russian - 33,7 %. The protective mechanisms providing them with the optimum conditions of existence were formed at boys of the Selkupy and the Khanty, being the ethnic population of the Tyumen north, in conditions of the long-term adaptation to the adverse influences of an environment. The received data can be used by teachers of physical culture from educational establishments and trainers from youth sports schools.