A. E. Chikov
Occupational Pathology and Human Ecology Federal State Unitary Enterprise, Federal Medical Biological Agency
Russian Federation

Alexander E. Chikov, Ph.D. (Biology), Associate Professor, Head of the Department of Sport Hygiene of Hygiene

93, Vsevolozhsky District, urban settlement Kuzmolovsky, Kapitolovo station, Leningrad Region, 188663

A. N. Pavlova
Herzen university of Russia; Occupational Pathology and Human Ecology Federal State Unitary Enterprise, Federal Medical Biological Agency
Russian Federation

Anna N. Pavlova, postgraduate student of institute of physical education and sport in Herzen university of Russia; Junior Researcher of Research Institute of Hygiene 

275, Ligovskiy ave., Saint Petersburg, 192007;
93, Vsevolozhsky District, urban settlement Kuzmolovsky, Kapitolovo station, Leningrad Region, 188663

A. V. Naumov
Occupational Pathology and Human Ecology Federal State Unitary Enterprise, Federal Medical Biological Agency
Russian Federation

Alexey V. Naumov, Scientist of Research Institute of Hygiene 

93, Vsevolozhsky District, urban settlement Kuzmolovsky, Kapitolovo station, Leningrad Region, 188663

D. S. Medvedev
Occupational Pathology and Human Ecology Federal State Unitary Enterprise, Federal Medical Biological Agency; North-Western State Medical University named after I.I. Mechnikov
Russian Federation

Dmitriy S. Medvedev, M.D., D.Sc. (Medicine), Professor, general researcher of physiological assessment and medical correction of Research Institute of Hygiene; Professor of the Department of physical therapy and sports medicine 

93, Vsevolozhsky District, urban settlement Kuzmolovsky, Kapitolovo station, Leningrad Region, 188663;
47C, Piskarevsky ave., Saint Petersburg, 195067