A.V. Arefyeva - Ph.D. (Biol.), Associate Professor, Department of "Defectology and Age Physiology", Tyumen State University. E-mail: avarefieva@rambler.ru N.M. Fateeva - Dr.Sc. (Biol.), Professor, Department of "Defectology and Age Physiology", Tyumen State University. E-mail: fateevanm@yandex.ru