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Nutrition: Vitamin D

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Total 3274 results found since Jan 2013.

Association the 25(OH) Vitamin D status with upper respiratory tract infections morbidity in water sports elite athletes.
CONCLUSIONS: VD insufficiency is quite pronounced among elite athletes engaged in synchronized swimming and swimmers. It is accompanied with a decrease of IFN-γ, increase of TNF-α, IL-4 and IL-6 level, and elevation of URTI morbidity. Seasonal monitoring and correction of the VD level for normalization of cytokine profile and decrease of URTI morbidity is definitely advised. PMID: 31062952 [PubMed - as supplied by publisher]
Source: Journal of Sports Medicine and Physical Fitness - May 9, 2019 Category: Sports Medicine Tags: J Sports Med Phys Fitness Source Type: research

Outdoor physical activity bears multiple benefits to health and society.
CONCLUSIONS: Giving the beneficial effects of outdoor sports and -physical activities, promotion strategies should be strongly advocated and developed nationally and globally. Likewise, dedicated research areas should inspire guidelines for the promotion of various outdoor activities - a good practice for the social scenario and the healthcare system. PMID: 30650943 [PubMed - as supplied by publisher]
Source: Journal of Sports Medicine and Physical Fitness - January 19, 2019 Category: Sports Medicine Tags: J Sports Med Phys Fitness Source Type: research

Why don't serum vitamin D concentrations associate with BMD by DXA? A case of being 'bound' to the wrong assay? Implications for vitamin D screening.
CONCLUSION: Regardless of age or race, bioavailable vitamin D and not serum 25(OH)D was associated with BMD in a racially diverse athletic population. If vitamin D screening is warranted, clinicians should use appropriate assays to calculate vitamin D binding protein and bioavailable vitamin D levels concentrations than serum 25(OH)D. In turn, prophylactic vitamin D supplementation to 'correct' insufficient athletes should not be based on serum 25(OH)D measures. PMID: 28798036 [PubMed - as supplied by publisher]
Source: British Journal of Sports Medicine - August 10, 2017 Category: Sports Medicine Authors: Allison RJ, Farooq A, Cherif A, Hamilton B, Close GL, Wilson MG Tags: Br J Sports Med Source Type: research

A profile of body composition, omega-3 and vitamin D in National Football League players.
CONCLUSIONS: Throughout the season, %BF was maintained, VitD levels increased, and omega-3 decreased. White athletes had significantly higher VitD levels than athletes of all other races. There were no differences in the physiological variables between injury severity categories. The results from the current study provides support for the potential importance of VitD and omega-3 supplementation for professional football athletes. PMID: 29498249 [PubMed - as supplied by publisher]
Source: Journal of Sports Medicine and Physical Fitness - March 3, 2018 Category: Sports Medicine Tags: J Sports Med Phys Fitness Source Type: research

Oestrogen replacement improves bone mineral density in oligo-amenorrhoeic athletes: a randomised clinical trial.
CONCLUSION: Transdermal estradiol over 12 months improves BMD in young OAA, particularly compared with an ethinyl estradiol-containing contraceptive pill/oral contraceptives. TRIAL REGISTRATION NUMBER: NCT00946192; Pre-results. PMID: 30301734 [PubMed - as supplied by publisher]
Source: British Journal of Sports Medicine - October 9, 2018 Category: Sports Medicine Authors: Ackerman KE, Singhal V, Baskaran C, Slattery M, Campoverde Reyes KJ, Toth A, Eddy KT, Bouxsein ML, Lee H, Klibanski A, Misra M Tags: Br J Sports Med Source Type: research

Prevalence of vitamin D deficiency amongst soccer athletes and effects of 8 weeks supplementation.
CONCLUSIONS: Professional athletes have a high prevalence of vitamin D. Supplementation with cholecalciferol in winter months during 8 weeks is safe and effective in raising 25(OH)D serum levels. However, it may not be sufficient for athletes to reach adequate vitamin D levels. PMID: 30411595 [PubMed - as supplied by publisher]
Source: Journal of Sports Medicine and Physical Fitness - November 10, 2018 Category: Sports Medicine Tags: J Sports Med Phys Fitness Source Type: research

Orthobiologics for Bone Healing
This article discusses the important properties of orthobiologics in bone healing, many of the orthobiologics currently available for bone healing, the related literature, their current clinical uses in sports medicine, and systemic factors that inhibit bone healing.
Source: Clinics in Sports Medicine - November 20, 2018 Category: Sports Medicine Authors: Jacob G. Calcei, Scott A. Rodeo Source Type: research

Do multi-ingredient protein supplements augment resistance training-induced gains in skeletal muscle mass and strength? A systematic review and meta-analysis of 35 trials.
CONCLUSIONS: When MIP supplements were combined with resistance exercise training, there were greater gains in FFM and strength in healthy adults than in counterparts who were supplemented with non-MIP. MIP supplements were not superior when directly compared with PRO supplements. The magnitude of effect of MIP supplements was greater (in absolute values) in untrained and elderly individuals undertaking RT than it was in trained individuals and in younger people. TRIAL REGISTRATION NUMBER: CRD42017081970. PMID: 30824459 [PubMed - as supplied by publisher]
Source: British Journal of Sports Medicine - February 28, 2019 Category: Sports Medicine Authors: O'Bryan KR, Doering TM, Morton RW, Coffey VG, Phillips SM, Cox GR Tags: Br J Sports Med Source Type: research

Physical performance is not improved with vitamin D repletion: a randomized trial.
CONCLUSIONS: These findings indicate that vitamin D repletion to levels sufficient for optimal physical performance does not improve anaerobic physical performance. PMID: 31565909 [PubMed - as supplied by publisher]
Source: Journal of Sports Medicine and Physical Fitness - October 1, 2019 Category: Sports Medicine Tags: J Sports Med Phys Fitness Source Type: research

Thyroid Function and Nutrient Status in the Athlete.
Abstract Thyroid disease is common in the general population, especially in women, and also may be prevalent among athletes. Autoimmune disorders are the most common cause of thyroid disorders in countries with iodine-fortification programs; however, thyroid dysfunction can be brought on by nutritional factors, including insufficient energy intake and iodine, selenium, iron, and vitamin D deficiency. Additionally, strenuous exercise may be associated with transient alterations in thyroid hormones. While the development of thyroid related disorders has the potential to impact health and peak performance, typical cl...
Source: Current Sports Medicine Reports - January 31, 2020 Category: Sports Medicine Authors: Larson-Meyer DE, Gostas DE Tags: Curr Sports Med Rep Source Type: research

Bone metabolism, bone mass and structural integrity profile in professional male football players.
CONCLUSIONS: With this pilot study, we demonstrated that vitamin D status significantly worsened at the end of the League. Therefore, vitamin D supplementation might be suggested in adult football players in order to prevent vitamin D deficiency and improve the athletic performance. PMID: 32118386 [PubMed - as supplied by publisher]
Source: Journal of Sports Medicine and Physical Fitness - March 3, 2020 Category: Sports Medicine Tags: J Sports Med Phys Fitness Source Type: research

Vitamin D for Improved Bone Health and Prevention of Stress Fractures: A Review of the Literature.
Abstract Vitamin D is a vital nutrient and hormone needed for many essential functions in overall health. There is growing literature examining the role of vitamin D not only in the general population but also in athletes. The most predominantly studied area of vitamin D pertains to bone health. Recently, there has been increased investigation into the relationship of vitamin D and stress fractures, including genetic polymorphisms, levels of 25-hydroxyvitamin D, and bioavailable vitamin D. This review will address the most recent developments of vitamin D research and its important role in bone health in athletes....
Source: Current Sports Medicine Reports - May 31, 2020 Category: Sports Medicine Authors: Lawley R, Syrop IP, Fredericson M Tags: Curr Sports Med Rep Source Type: research

Vitamin D Supplements in Sports: A Long Run for a Short Jump
Curr Sports Med Rep. 2023 Sep 1;22(9):297-298. doi: 10.1249/JSR.0000000000001101.NO ABSTRACTPMID:37678345 | DOI:10.1249/JSR.0000000000001101
Source: Current Sports Medicine Reports - September 7, 2023 Category: Sports Medicine Authors: E Randy Eichner Source Type: research