Vitamin D deficiency: gender characteristics

Kondratyeva, E.; Loshkova, E.V.; Захарова, И. Н.; Саприна, Т. В.; Shubina, Yu.F.; Nikonova, V.; Melyanovskaya, Y.; Zodbinova, A.; Odinaeva, N.

doi:10.33029/2304-9529-2021-10-2-18-25

Cited by 4 publications

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“…The general trends indicated lower concentrations of vitamin D in men, regardless of season and age. In women, the lowest vitamin D content is observed in old age, regardless of the season of the year [53][54][55].…”

Section: Discussionmentioning

confidence: 99%

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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Section: Discussionmentioning

confidence: 99%

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

View full text Add to dashboard Cite

show abstract

“…The general trends indicated lower concentrations of vitamin D in men, regardless of season and age. In women, the lowest vitamin D content was observed in old age, regardless of the season of the year [ 53 , 54 , 55 ]. For future research, we see the need to conduct a more detailed survey of participants about vitamin D intake and other factors which may be associated with Vitamin D levels in human blood.…”

Section: Discussionmentioning

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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Vitamin D Sufficiency and Its Relationship with Indicators of Physical Development and the State of Bone Tissue in Cadets of a Military Higher Educational Institution

Kryukov,

Lesnyak,

Aganov

et al. 2024

Annals RAMS

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Background. In conditions of low insolation, which is typical for the northern regions of the Russian Federation, manifestations of low vitamin D availability often occur latently and for a long time unrecognized. This problem is especially relevant in young people, due to the failure to reach peak bone mass, which later determines the bone mineral density. Aims — to determine the prevalence of deficiency and insufficient supply of 25(OH)D in blood serum in the spring, their impact on the indicators of physical development and bone mineral density among cadets of a military higher educational institutions. Methods. We examined 198 cadets, studying in the first and fourth years of military higher educational institutions in St. Petersburg at the age of 17–25 years. As part of the study, a study of 25(OH)D in blood serum was performed, bone mineral density, muscle strength, anthropometric data, and body composition were additionally determined. The study was conducted in March–May 2023. Results. The optimal content of 25(OH)D was found only in 22 (11.1%) cadets, while the most pronounced deficiency was registered in boys of fourth of study. It was established that the 25(OH)D level of first year cadets, who arrived from the southern regions of the Russian Federation (21.6 (18.1; 26.3) ng/ ml), was significantly different from the content of 25(OH)D in cadets who arrived from the middle zone (Me 18.7 (16.4; 21.4) ng/ml) (p = 0.017) and northern regions of the Russian Federation (Me 15.2 (13.6; 19.3) ng/ml) (p = 0.022). A decrease in the Z-criterion ≤ –2.0 SD was noted among cadets, mainly in the first year. It was revealed that muscle and fat mass were higher in fourth year boys, however, their muscle strength was not statistically significantly different from that of first year and muscle strength indicators did not depend on the availability of 25(OH)D. Increasing BMI was associated with higher muscle mass (p = 0.0004) and fat mass (p = 0.0006), with muscle strength (p = 0.026) and physical fitness performance (p = 0.012) among cadets with increasing BMI were significantly better compared to cadets who had an optimal BMI. Conclusions. The results obtained indicate that cadets of a military higher educational institutions of St. Petersburg experience 25(OH)D deficiency and insufficiency, against the background of increased physical activity and prolonged stay in conditions of reduced insolation. This fact indicates the need to correct vitamin D hypovitaminosis in order to prevent osteopenic syndrome and improve physical performance.

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Vitamin D deficiency: gender characteristics

Cited by 4 publications

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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

Vitamin D Sufficiency and Its Relationship with Indicators of Physical Development and the State of Bone Tissue in Cadets of a Military Higher Educational Institution

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