Human PhysiologyHuman PhysiologyФизиология человека0131-16463034-6150The Russian Academy of Sciences66403010.31857/S0131164624010125ArticlesСтатьиResearch ArticleVitamin D and its effect on the endothelial function of cross-country skiers at various stages of the training cycleВитамин D и его влияние на эндотелиальную функцию лыжников-гонщиков на различных этапах тренировочного циклаPotolitsynaN. N.ПотолицынаН. Н.
Russian Federation
potol_nata@list.ruParshukovaO. I.ПаршуковаО. И.
Russian Federation
potol_nata@list.ruKalikovaL. B.КаликоваЛ. Б.
Russian Federation
potol_nata@list.ruBojkoE. R.БойкоЕ. Р.
Russian Federation
potol_nata@list.ruDepartment of Ecological and Medical Physiology, Institute of Physiology, Ural Branch, RASФГБУН Институт физиологии ФИЦ Коми НЦ УрО РАН0406202450112813825022025Copyright ©; 2024, Russian Academy of SciencesCopyright ©; 2024, Российская академия наук2024Russian Academy of SciencesРоссийская академия наукhttps://journals.eco-vector.com/0131-1646/article/view/664030

The aim of the study was to assess the level of vitamin D and nitric oxide metabolites, and to search for the relationship between them in cross-country skiers at various stages of the training cycle. During the year, two groups of men (20–26 years old, inhabitants of the Komi Republic) were examined four times: cross-country skiers who are active members of the national teams of the Komi Republic/Russia (n = 11) and office workers (n = 10). It was shown that skiers had higher vitamin D levels duration the year compared to office workers. The fluctuations in the levels of vitamin D, calcium and phosphorus detected in cross-country skiers were seasonal, which could lead to significant changes in the synthesis of nitric oxide and the work of the endothelial system. The greatest number of correlations between the studied metabolites in cross-country skiers was revealed at the beginning and end of the annual training season. A significant imbalance in the levels of vitamin D and nitric oxide metabolites found in them in March may negatively affect the success of performance at important competitions.

В работе исследовали взаимосвязь витамина D и метаболитов оксида азота у высококвалифицированных лыжников-гонщиков на различных этапах тренировочного цикла. В течение года четырехкратно были обследованы две группы мужчин (20–26 лет, жители Республики Коми): лыжники-гонщики, являющиеся действующими членами сборных команд Республики Коми и России (n = 11) и офисные работники (n = 10). Показано, что у лыжников в течение всего года был более высокий уровень витамина D, по сравнению с офисными работниками. Выявленные у лыжников-гонщиков флуктуации уровня витамина D, кальция и фосфора имели сезонный характер, что могло привести к значительным изменениям в синтезе оксида азота и работе эндотелиальной системы. Наибольшее число корреляций между исследованными метаболитами у лыжников-гонщиков было выявлено в начале и конце годового тренировочного сезона. Обнаруженный у них в марте значительный дисбаланс уровня витамина D и метаболитов оксида азота может негативно отразиться на успешности выступления на важных соревнованиях.

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