Evaluation of Vitamin D Levels According to Age, Sex and Seasonal Characteristics in Samsun

Objective: Ski may be a branch which has the most important representation power of all winter sports. It has further been characterized by a high popularity and population which is divided into sub-branches among itself. One sometimes encounters different performance and physiological indicators in the athletes depending on seasonal cycles, training levels and living conditions during the year. The object of this study is to study vitamin D, cortisol and testosterone values in male skiers by seasonal cycles. Material and Methods: Fourteen male skiers between 12 and 18 years of age participated in the study. Participants were studied in two groups by their age ranges. The Group 1 included 7 males whose age average was 13.0±0.8 years, height average was 153.2±8.0 cm and body weight average were 45.7±2.7 kg. The Group 2 included 7 males whose age average was 16.8±1.3 years, height average was 166.0±4.0 cm and body weight average were 64.2±6.6 kg. We determined the age, height and body mass data of the participants by standard methods. We performed a Wingate anaerobic test (WAnT) in order to determine the anaerobic power level. We took blood samples from the antecubital vein in a seated position. We performed all tests at an altitude of 2.000 meters once in January, April, June and November each. Results: We found a significant difference in the cortisol, WBC, HCT, PP and MP parameters in the intra-group comparison results in the Group 1. And there was a significant difference in vitamin D, PP, AP and PD parameters in the Group 2. In the inter-group comparison results, we found a significant difference only in the testosterone hormone. Conclusions: We thought that the study results supported the literature to a great extent.

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Erkek kayakçılarda mevsimsel döngülere göre d vitamini, kortizol ve testosteron değerlerinin incelenmesi

Budak

Ucan

Dündar

et al. 2023

The Online Journal of Recreation and Sports

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Does the plasma vitamin D level affect the severity of infection in COVID-19 patients of different age groups?

GÜVENÇ¹,

Atilla²,

AVCI³

et al. 2022

Pamukkale Medical Journal

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Purpose: SARS-CoV-2 has caused an on-going global pandemic of COVID-19 disease. Vitamin-D has an immunomodulatory effect on the disease by suppressing the adaptive immune system which can lead to a cytokine storm, and boosting the innate immune system. This study evaluated the relationship between both the clinical characteristics of COVID-19 patients and the severity of their infections, and their serum Vitamin D levels. Material and methods: Forty COVID-19 patients from the period April to July, 2020, and 46 healthy subjects from a similar period in 2019, were included. Serum Vitamin-D level, clinical findings, comorbidities, chest computed tomography findings, hematological and serum biochemistry analyzes of the patients were evaluated. Results: COVID-19 patients had a significantly lower mean serum 25(OH) Vitamin-D level (12.86±6.27 ng/ mL) than healthy subjects (25.4±12.7 ng/mL) (p<0.001). The prevalence of Vitamin D deficiency in COVID-19 patients was high, not only in the elderly, but also in middle age and young patients. Ground-glass opacification and paving stone sign were the most frequent patterns observed in chest-computed tomography (CT) images. There was a significant negative relationship between Vitamin-D deficiency and C-reactive protein (CRP) level (p=0.0243). In addition, a high CRP level was associated with abnormal CT findings (p=0.001). Conclusion:The authors conclude that determining the Vitamin-D level in COVID-19 patients and administering it at the appropriate dosage can reduce the severity and progression of COVID-19 disease by contributing to the regulation of the cytokine storm and pulmonary inflammatory response.

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Determination of Life Styles of Individuals with Vitamin D Deficiency

Çetin¹,

Kıyak²

2022

Tod

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Evaluation of Vitamin D Levels According to Age, Sex and Seasonal Characteristics in Samsun

Cited by 4 publications

References 27 publications

Erkek kayakçılarda mevsimsel döngülere göre d vitamini, kortizol ve testosteron değerlerinin incelenmesi

Erkek kayakçılarda mevsimsel döngülere göre d vitamini, kortizol ve testosteron değerlerinin incelenmesi

Does the plasma vitamin D level affect the severity of infection in COVID-19 patients of different age groups?

Determination of Life Styles of Individuals with Vitamin D Deficiency

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