The review, based on modern literature data and the results of many years of research conducted by the authors, highlights the problem of comorbidity (multimorbidity) in children with bronchial asthma (BA). There is a grouping of concomitant diseases in children with asthma depending on the type of comorbidity (causal, complicated, unspecified, reverse). Based on epidemiological data, observational and cohort studies, systematic reviews and meta-analyses, information on the frequency of BA in children with various comorbid diseases and comorbid diseases in children with BA was summarized. Scientific, theoretical and practical significance of comorbidity in BA, diagnostic and treatment programs in pediatric patients suffering from BA and comorbid diseases are substantiated.

Адрес для корреспонденции: Ключников Сергей Олегович-д.м.н., проф., рук. научно-исследовательской лаборатории медицинских проблем в спорте высших достижений Федерального научно-клинического центра спортивной медицины и реабилитации ФМБА России

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The article is devoted to one of the relevant problems of modern medicine-osteoporosis. Osteoporosis epidemiology, risk factors, diagnostic approaches, which are confirmed in domestic and foreign researches, are discussed. Particular attention is paid to the ambiguity and inconsistency of information on osteoporosis in childhood and adolescence, as well as the lack of convincing studies of this issue in children's sports medicine. The authors analyze the generally accepted approaches to the identification of risk groups for the osteoporosis development in children, the predisposing factors and the complex issues of osteoporosis diagnostics. Paper includes data on own observations of the most complex group of children and adolescents involved in sport, including professional sport. A separate section is devoted to the analysis of prescribed medications for the prevention and treatment of osteoporosis in children and young athletes. The data are presented in accordance with the official information provided by World Anti-Doping Agency (WADA, 2017).