scholarly journals Predictive Factors for Vitamin D Concentrations in Swiss Athletes: A Cross-sectional Study

2018 ◽  
Vol 02 (05) ◽  
pp. E148-E156 ◽  
Author(s):  
Simeon Zürcher ◽  
Andrea Quadri ◽  
Andreas Huber ◽  
Lothar Thomas ◽  
Graeme Close ◽  
...  

AbstractVitamin D concentrations corresponding to 75 nmol/L 25(OH)D have been associated with maintained muscle function, growth and regeneration, optimal bone health and immunology in athletes. The objective of this study was to investigate the prevalence and predictors of insufficient 25(OH)D concentrations in athletes. Six hundred three Swiss athletes were assessed. 25(OH)D was analysed by high-performance liquid chromatography (HPLC). A standardized questionnaire was used to gather information about potential predictors for 25(OH)D concentrations; 50.5% showed insufficient 25(OH)D concentrations. Differences in predicted probability of insufficient 25(OH)D were found for those vitamin D supplemented (42%) versus not supplemented (52%), in those performing indoor (58%) versus outdoor sports (43%), and during the sun-deprived seasons of fall (49%), winter (70%) and spring (57%) compared with summer (17%). Higher BMI z-scores and age were associated with higher 25(OH)D concentrations. In conclusion, insufficient 25(OH)D concentrations were common among athletes especially at a younger age, among those not supplemented, in athletes who trained indoors, and during the sun-deprived seasons. Because the prevalence of insufficient 25(OH)D concentrations in this study was high, regular supplementation in athletes may be indicated, except perhaps during the summer season. Further research is needed to determine which 25(OH)D concentrations lead to optimal health and performance in athletes.

2017 ◽  
Vol 181 (24) ◽  
pp. 657-657 ◽  
Author(s):  
Lucie Collineau ◽  
Annette Backhans ◽  
Jeroen Dewulf ◽  
Ulf Emanuelson ◽  
Elisabeth grosse Beilage ◽  
...  

Pig farmers are strongly encouraged to reduce their antimicrobial usage because of the rising threat from antimicrobial resistance. However, such efforts should not compromise the herd health status and performance. This study aimed to describe the profile of so-called ‘top-farms’ that managed to combine both high technical performance and low antimicrobial usage. A cross-sectional study was conducted among 227 farrow-to-finish farms in Belgium, France, Germany and Sweden. Among them, 44 farms were allocated to the top-farms group and were compared with the ’regular’ farms group in terms of farm characteristics, biosecurity and health status. Top-farms had fewer gastrointestinal symptoms in suckling pigs and fewer respiratory symptoms in fatteners, which could partly explain their reduced need for antimicrobials and higher performance. They also had higher biosecurity and were located in sparsely populated pig areas. However, 14 farms of the top-farms group were located in densely populated pig areas, but still managed to have low usage and high technical performance; they had higher internal biosecurity and more extensive vaccination against respiratory pathogens. These results illustrate that it is possible to control infectious diseases using other approaches than high antimicrobial usage, even in farms with challenging environmental and health conditions.


2021 ◽  
Vol 32 (2) ◽  
pp. 170-174
Author(s):  
Md Shahed Morshed ◽  
Tahniyah Haq ◽  
Shahjada Selim ◽  
Habibul Ghani ◽  
Ibrahim Faisal ◽  
...  

Background: Vitamin D may play important role in the pathogenesis of several components of metabolic syndrome (MS). The aim of this study was to observe the association of vitamin D with MS and its components in Bangladeshi adults with prediabetes. Methods: This cross-sectional study was done among 117 newly detected nonpregnant adults with prediabetes [age (years): 36.30±9.99; BMI (kg/ m2): 28.89±4.35, mean±SD; M/F: 23/94] based on American Diabetes Association 2018 criteria. Metabolic syndrome was diagnosed by any three of five criteria: central obesity; elevated blood pressure, fasting blood glucose & triglyceride (TG) and lower HDL cholesterol. Glucose was measured by glucose oxidase, lipid by glycerol phosphate dehydrogenase-peroxidase and vitamin D by high performance liquid chromatography method. Vitamin D <20 ng/ml was considered as deficiency (VDD). Results: Among all the variables only TG was significantly higher in patients with VDD than those without VDD (³20 ng/ml) [163.0 (135.50, 224.50) vs. 143.50 (101.25, 190.0), median (IQR), p=0.048]. There were no significant correlations [p=NS for all] and associations of vitamin D with MS or its components in linear and logistic regression [p=NS for all]. Conclusions: Except TG vitamin D has no associations with MS or its components in Bangladeshi adults with prediabetes. Bangladesh J Medicine July 2021; 32(2) : 170-174


2018 ◽  
Vol 66 (2) ◽  

Background: Vitamin D concentrations corresponding to 75 nmol/L of 25(OH)D or more have been related to maintained muscle function, growth and regeneration, to optimal bone health and immunology in athletes. The objective of this study was to investigate prevalence and predictors of insufficient 25(OH)D concentrations in athletes and to come up with recommendations for our Swiss athletes. Methods: 603 competitive Swiss athletes were assessed during their annual pre-participation examination. A standardized questionnaire was used to gather information about potential predictors for 25(OH)D concentrations. Results: One in 2 athletes showed insufficient 25(OH)D concentrations. Differences in predicted probability of insufficient 25(OH)D were found for those that were not substituted (56%) vs. those substituted (42%) versus unsubstituted (52%), for those performing indoor (58%) vs. outdoor (43%) sports and during the sun deprived seasons fall (49%), winter (70%) and spring (57%) as compared to summer (17%). An increase in BMI z-scores and age was associated with higher 25(OH)D. Implication: One in two Swiss athletes shows insufficient 25(OH)D concentrations. To prevent potential harmful consequences on athletic performance, muscular, skeletal and immunological health, we recommend a regular substitution in daily, weekly or monthly intervals with a daily equivalent dose of 600–2000 IE Vit D except perhaps in summer. Routine assessments of 25(OH)D concentrations are not necessary.


Author(s):  
Manal M. Anwar ◽  
Ahmed E. Arafa ◽  
Dalia S. Morgan ◽  
Khaled K. Mohamed

Background: Estimate the prevalence of vitamin D deficiency among patients diagnosed with chronic cholestasis and investigates the association between their clinical manifestations and lab results of 25(OH) D levels.Methods: A cross sectional study of 50 patients aged > 3 months up to 18 years, who had medical care in the Beni-Suef University hospital, Beni-Suef governorate, Egypt. All patients were fully investigated including routine labs in addition to 25- [OH] D levels and dual energy X-ray absorptiometry (DXA).Results: Mean age was 6.5±4.5 years. Mean serum 25 (OH) D levels was 37.9±28.2; 30% of patients had 25 (OH) D <20 ng/ml and 26% had 25 (OH) D 20-<30 ng/ml. Low BMD was diagnosed in 73.1% of patients. The spine DXA BMD ranged between -5.4 and -1.4 (-2.9±0.9 Z-scores). A delayed milestone was reported in 32% of patients, and 56% had signs of rickets.Conclusions: Deficiency of Vitamin D, signs of rickets and osteoporosis were evident in chronic cholestasis patients. No statistical significance was detected between 25- D [OH] levels and clinical, laboratory and radiological findings.


2021 ◽  
Vol 0 (38) ◽  
pp. 0-0
Author(s):  
Betül KOÇAK ◽  
Hande ÖNGÜN YILMAZ

Aim: In this study, it was aimed to evaluate the nutritional status of preschool children who were admitted to the hospital due to infection, and to determine the relationship between the frequency of infection and their growth and development. Method: This descriptive cross-sectional study was conducted with a total of 110 children aged between 3 and 6 years who applied due to infection to a hospital in Istanbul. Data collection was made with face to face interviews with a questionnaire form including questions about the child's age, gender, health status, infection frequency, cleaning habits, anthropometric measurements, and food consumption frequency. Results: According to body mass index (BMI) Z scores, 8.1% of the children were severely thin, 9.1% thin, 44.5% normal, 21.8% overweight, and 16.4% obese. While 36.4% of the children having infection 1-3 times a year, 63.6% having infection 4 and more times a year. Children whose rooms were cleaned frequently had more infections (p<0.05). There was no relationship between the children's daily energy and nutrient consumption and the infection frequency (p>0.05) except vitamin D. Children who consumed less vitamin D had 4 or more infections yearly (p<0.05). Conclusion: Frequent infectious diseases during childhood affect growth and development. Due to the bilateral relationship between infection and malnutrition, the nutritional status and growth developments of children with frequent infections should be followed closely.


2007 ◽  
Vol 77 (6) ◽  
pp. 376-381 ◽  
Author(s):  
de Souza Genaro ◽  
de Paiva Pereira ◽  
de Medeiros Pinheiro ◽  
Szejnfeld ◽  
Araújo Martini

Vitamin D is essential for maintaining calcium homeostasis and optimizing bone health. Its inadequacy is related to many factors including dietary intake. The aim of the present study was to evaluate serum 25(OH)D and its relationship with nutrient intakes in postmenopausal Brazilian women with osteoporosis. This cross-sectional study comprised 45 free-living and assisted elderly at São Paulo Hospital. Three-day dietary records were used to assess dietary intakes. Bone mineral density was measured with a dual-energy X-ray absorptiometer (DXA). Blood and urine sample were collected for analysis of biochemical markers of bone and mineral metabolism. Insufficiency of vitamin D was observed in 24.4% of the women and optimal levels (≥ 50 nmol/L) were observed in 75.6%. Parathyroid hormone was above the reference range in 51% of the participants. The mean calcium (724 mg/day) and vitamin D (4.2 μ g/day) intakes were lower than the value proposed by The Food and Nutrition Board and sodium intake was more than two-fold above the recommendation. Higher levels of serum 25(OH)D were inversely associated with sodium intake. Dietary strategies to improve serum vitamin D must focus on increasing vitamin D intake and should take a reduction of sodium intake into consideration.


2020 ◽  
Vol 9 (3) ◽  
pp. 207-211
Author(s):  
Sidra Sarwar ◽  
Sara Khalid ◽  
Tahir Mahmood ◽  
Hadeeqa Jabeen ◽  
Shahid Imran

Background: Musculoskeletal disorders are not only becoming prevalent among health care professionals in our country but are affecting their health and performance adversely. They are caused by poor ergonomics and awkward posture during work activities. The purpose of this study was to determine the frequency of neck and upper limb musculoskeletal disorders in dentists of Lahore, Pakistan. Material and Methods: This cross-sectional study was conducted during October 2017 to March 2018. The data was collected using convenient sampling technique from 162 Dentists including 52 males and 110 females of Children hospital Lahore, Punjab Dental hospital and Fatima Memorial Hospital, Lahore. Data was collected by using Mangalore Questionnaire for identification of musculoskeletal disorders. Descriptive analysis of the data was done using SPSS version 22.0. Results: Of 162 dentists, 115 (71%) suffered from musculoskeletal disorders. Shoulder was the most commonly affected region (30.9%) followed by neck (25.9%), arm (6.2%), wrist (4.3%), elbow (3.1%) and forearm (0.6%). Pain (45.7%) was found to be the most common complaint followed by muscle weakness (20.4%), paraesthesia (3.7%) and swelling (1.2%). Conclusions: It was concluded that majority of the dentists were suffering from musculoskeletal disorders with shoulder as the most affected region and pain as the most frequent complaint. Key words: Dentists, Musculoskeletal disorders, Neck pain, Upper extremity


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