Prevalence of Vitamin D Inadequacy in Athletes: A Systematic-Review and Meta-Analysis

Farrokhyar, Forough; Tabasinejad, Rasam; Dao, Dyda; Peterson, Devin; Ayeni, Olufemi R.; Hadioonzadeh, Reza; Bhandari, Mohit

doi:10.1007/s40279-014-0267-6

Cited by 195 publications

(218 citation statements)

References 49 publications

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“…A surprisingly high prevalence of vitamin D insufficiency has been recently reported worldwide (Table 1) regardless of their insolation [20][21][22][23]. In Canada, 30-50 % of children and adults are vitamin D deficient and need vitamin D supplementation [24].…”

Section: Vitamin D Deficiencymentioning

confidence: 99%

“…Indeed, athletes may be more vulnerable to vitamin D deficiency than age-matched non-athletes even in regions with insolation. A recent meta-analysis pooling 23 studies composed of 2313 athletes found that 56 % of athletes had inadequate vitamin D [23]. In addition, a sizeable number of athletes do not meet the US dietary reference intake for vitamin D in addition to their inadequate endogenous synthesis when they train indoors [27].…”

Section: Vitamin D Deficiencymentioning

confidence: 99%

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Vitamin D and Physical Activity

Koundourakis¹,

Margioris²

2017

A Critical Evaluation of Vitamin D - Basic Overview

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Vitamin D is synthesized in the skin following exposure to ultraviolet radiation, producing cholecalciferol, while only a small percentage of the circulating vitamin D is of exogenous origin deriving from food. Following two sequential hydroxylations, in the liver and in the kidneys, vitamin D is fully activated. Although its role in bone physiology and calcium homeostasis is well documented, there is emerging evidence that vitamin D exerts a plethora of additional effects on most tissues regulating the musculoskeletal, cardiovascular, and immune systems as well as energy homeostasis. Its deficiency/insufficiency poses a major public health problem observed in all age groups and regardless of latitude and insolation. In muscles, vitamin D deficiency is associated with a decline in neuromuscular function including muscular strength, walking speed, balance, jumping and sprinting performance, and aerobic capacity, although the evidence is still weak regarding its effects in the young and the athletes. Supplementation counteracts the negative effects of vitamin D deficiency on performance although in individuals with adequate levels of vitamin D, additional supplementation does not appear to enhance further physical capabilities. The aim of this chapter is to review our current understanding of diverse effects of vitamin D in physical performance in athletic and nonathletic populations.

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Section: Vitamin D Deficiencymentioning

confidence: 99%

Section: Vitamin D Deficiencymentioning

confidence: 99%

Vitamin D and Physical Activity

Koundourakis¹,

Margioris²

2017

A Critical Evaluation of Vitamin D - Basic Overview

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“…1 Despite the importance of vitamin D to musculoskeletal health, vitamin D deficiency and insufficiency are becoming globally prevalent. [2][3][4] It is estimated that worldwide there are 1 billion people who are vitamin D deficient or insufficient, 5,6 including 3.3 million Canadians 7 and 250 million Americans who are vitamin D deficient. 8 At the cellular level, vitamin D is involved in every stage of the complex process of fracture healing through its effects on inflammatory cells, cytokines, growth factors, osteoblasts, osteoclasts, and through its effect on the process of mineralization.…”

Section: Introductionmentioning

confidence: 99%

What Is the Role of Vitamin D Supplementation in Acute Fracture Patients? A Systematic Review and Meta-Analysis of the Prevalence of Hypovitaminosis D and Supplementation Efficacy

Sprague

Petrisor

Scott

et al. 2016

Journal of Orthopaedic Trauma

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“…Patient education regarding proper diet, bone mineral density (BMD), and adequate levels of vitamin D should be emphasized. 20,21 Additional evaluation is important in women who are athletes with menstrual irregularities and eating disorders due to the increased risk of stress fractures. 22 Lower BMD delays recovery from these injuries and increases the risk of future osteoporotic fractures.…”

Section: Bone Healthmentioning

confidence: 99%

Adolescent Shin Pain

Korsh¹,

Matijakovich²,

Gatt³

2017

Pediatr Ann

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Shin pain is a common complaint in adolescent athletes. The term "shin splints" has historically been applied to these patients. Shin splints, more often than not, refers to a stress reaction of the tibia from overuse. Overuse injuries occur when repetitive microtrauma to the bone exceeds the biologic healing potential. Diagnosis is based on typical history and physical examination findings. Plain radiographs and advanced imaging are rarely necessary but can provide valuable prognostic information. Treatment consists of adequate rest and exercise modification. Time to return to sport depends on injury location and severity. Stress fractures have long-term implications on bone health, so modifiable risk factors should be addressed. It is important for primary care physicians to understand the significance of these injuries. [Pediatr Ann. 2017;46(1):e29-e32.]

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Prevalence of Vitamin D Inadequacy in Athletes: A Systematic-Review and Meta-Analysis

Cited by 195 publications

References 49 publications

Vitamin D and Physical Activity

Vitamin D and Physical Activity

What Is the Role of Vitamin D Supplementation in Acute Fracture Patients? A Systematic Review and Meta-Analysis of the Prevalence of Hypovitaminosis D and Supplementation Efficacy

Adolescent Shin Pain

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