The prevalence of vitamin D deficiency (25-OH-D3) in obese patients in Russia: a retrospective population study

Tishova, Yulia; Vorslov, Leonid; Zhukov, Artem; Gusakova, Daria; Belov, Dmitry; Malisheva, Irina; Nizhnik, Alexandr; Kalinchenko, Svetlana

doi:10.1016/j.maturitas.2015.02.359

Cited by 2 publications

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“…According to ongoing studies [ 20 ], at least half of the planet’s population has some degree of vitamin D deficiency; the average level in this country is only 22.4 ng/mL [ 21 ]. Holick et al note that with increasing age, the percentage of the population with severe vitamin D deficiency also increases, reaching 80–90% [ 22 ].…”

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confidence: 99%

The Functional States of the Participants of a Marine Arctic Expedition with Different Levels of Vitamin D in Blood

Simonova,

Kirichek,

Trofimova

et al. 2023

IJERPH

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(1) Background: The vitamin D level in blood is one of the markers of the functional reserves of the human body and can contribute to more successful adaptation in the Arctic. (2) Methods: The study involved 38 participants in the project “Arctic Floating University—2021”. The determination of vitamin D content was carried out at the beginning of the expedition. A dynamic study was carried out for 20 days in the morning and in the evening. The functional state parameters of the participants were assessed using psychophysiological and questionnaire methods. Statistical methods: Mann–Whitney U-test and correlation analysis. (3) Results: It was found that at the beginning of the expedition, the functional state of participants with more severe vitamin D deficiency is characterized by a shorter average duration of RR intervals (p = 0.050) and reduced SDNN values (p = 0.015). The higher the content of vitamin D, the greater increase in speed (r = 0.510), the higher the increase in projective performance (r = 0.485), and the smaller the increase in projective stress (r = −0.334). Significant relationships between the subjective characteristics of functional states and the vitamin D of participants have not been established. (4) Conclusion: With an increase in the severity of vitamin D deficiency in the blood, the adaptive capabilities of participants decrease during an expedition to the Arctic.

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Section: Introductionmentioning

confidence: 99%

The Functional States of the Participants of a Marine Arctic Expedition with Different Levels of Vitamin D in Blood

Simonova,

Kirichek,

Trofimova

et al. 2023

IJERPH

View full text Add to dashboard Cite

show abstract

The functional states of the participants of a marine Arctic expedition with different levels of vitamin D in blood

Simonova¹,

Kirichek²,

Trofimova³

et al. 2023

Preprint

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(1) Background: The issue of human adaptation to the Arctic environmental factors is relevant. The adaptation can be assessed through dynamic monitoring of the functional state of a person during his/her stay there. The vitamin D level in blood is one of the markers of the functional reserves of the human body and can contribute to more successful adaptation in the Arctic. (2) Methods: The study involved 38 participants in the scientific and educational expeditionary project "Arctic Floating University-2021". Blood collection for determination of vitamin D content was carried out at the beginning of the expedition. A dynamic study was carried out for 20 days in the morning and in the evening during a marine scientific expedition to the Arctic. The main parameters of the functional state of the participants were assessed using instrumental psychophysiological, projective and questionnaire methods. Statistical methods: Mann-Whitney U-test, correlation analysis using the Spearman coefficient. (3) Results: It was found that at the beginning of the expedition, the functional state of participants with severe vitamin D deficiency is characterized by a shorter average duration of RR intervals and reduced SDNN values, which may indicate a higher level of regulatory mechanisms tension. The pronounced differences in the nature of the dynamic series of objective and projective working capacity parameters were manifested most clearly. According to the subjective questionnaire characteristics of well-being, activity and mood, no significant features of the participants with vitamin D deficiency were revealed. (4) Conclusion: The participants with vitamin D deficiency in blood are characterized by a reduced adaptive capacity during the expedition to the Arctic.

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The prevalence of vitamin D deficiency (25-OH-D3) in obese patients in Russia: a retrospective population study

Cited by 2 publications

References 0 publications

The Functional States of the Participants of a Marine Arctic Expedition with Different Levels of Vitamin D in Blood

The Functional States of the Participants of a Marine Arctic Expedition with Different Levels of Vitamin D in Blood

The functional states of the participants of a marine Arctic expedition with different levels of vitamin D in blood

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