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Related Concept Videos

Role of Skin in Vitamin D Synthesis01:23

Role of Skin in Vitamin D Synthesis

The skin plays a crucial role in the synthesis of vitamin D, a vital nutrient for various physiological processes in the body. Vitamin D is unique because it can be synthesized in the skin through a series of chemical reactions triggered by exposure to ultraviolet B (UVB) radiation from sunlight.
The solar UV B rays (290-315 nm) are absorbed by the skin, and 7-dehydrocholesterol (provitamin D3) photolyzes it to previtamin D3, which undergoes a rapid transformation to vitamin D3(cholecalciferol).
Role of Vitamins in Maintaining Bone Health01:25

Role of Vitamins in Maintaining Bone Health

The growth and maintenance of bone are regulated by a combination of nutritional factors, including vitamins, such as vitamin A, B12, C, D, and K.
Vitamin A
Vitamin A is involved in the process of bone remodeling. Retinoic acid, the active metabolite of Vitamin A, has nuclear receptors in osteoblasts and osteoclasts, which are involved in bone remodeling.
Vitamin B12
Vitamin B12 acts as a cofactor during the formation of osteoblast-related proteins, such as osteocalcin. Vitamin B12 plays a role...
Connective Tissue Cell Types01:22

Connective Tissue Cell Types

Connective tissue develops from the mesoderm of a developing embryo and consists of cells, fibers, and ground substance: a gel-like material containing large complexes of carbohydrates and proteins. Connective tissue was first identified as a separate tissue family in the 18th century, and Johannes Peter Muller coined the term connective tissue.
Fat cells (adipocytes), smooth muscle cells (myoblasts), and bone cells (osteoblasts) are some connective tissue cell types. Some immune system cells...
Exercise and Cardiovascular Response01:20

Exercise and Cardiovascular Response

Exercise significantly impacts cardiovascular response, which is crucial for understanding patient health and designing effective treatment plans.
Light to moderate physical activity initiates a series of interconnected responses in the body. The heart rate modestly increases in anticipation of the workout, followed by widespread vasodilation as oxygen consumption by skeletal muscles increases. This results in decreased peripheral resistance, increased capillary blood flow, and accelerated...
Skeleton and Calcium Homeostasis01:21

Skeleton and Calcium Homeostasis

Calcium is not only the most abundant mineral in bone but also the most abundant mineral in the human body. Calcium ions are needed for bone mineralization, tooth health, heart rate regulation and strength of contraction, blood coagulation, the contraction of smooth and skeletal muscle cells, and the regulation of nerve impulse conduction. The average calcium level in the blood is about 10 mg/dL. When the body cannot maintain this level, a person will experience hypo or hypercalcemia.
Vitamins01:30

Vitamins

Vitamins, derived from the Latin word for life, are essential organic substances required in small quantities for optimal growth and overall well-being. Unlike other organic nutrients, vitamins don't act as sources of energy or building materials but rather facilitate these nutrients' utilization by the body. Vitamins are predominantly coenzymes, assisting enzymes in specific chemical actions, like the oxidation of glucose for energy involving B vitamins. Most vitamins are not produced in our...

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Related Experiment Video

Updated: Jun 11, 2026

A Method of Trigonometric Modelling of Seasonal Variation Demonstrated with Multiple Sclerosis Relapse Data
10:46

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Published on: December 9, 2015

Vitamin D and athletes.

D Enette Larson-Meyer1, Kentz S Willis

  • 1Departments of Family and Consumer Sciences (Human Nutrition), University of Wyoming, Laramie, WY 82071, USA. enette@uwyo.edu

Current Sports Medicine Reports
|July 13, 2010
PubMed
Summary
This summary is machine-generated.

Adequate vitamin D levels are crucial for athletes, impacting bone health, inflammation, and muscle function. Sports professionals should monitor vitamin D status to optimize athlete health and performance.

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Isolation of Mesenchymal Stem Cells from Human Alveolar Periosteum and Effects of Vitamin D on Osteogenic Activity of Periosteum-derived Cells
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A Method of Trigonometric Modelling of Seasonal Variation Demonstrated with Multiple Sclerosis Relapse Data
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Isolation of Mesenchymal Stem Cells from Human Alveolar Periosteum and Effects of Vitamin D on Osteogenic Activity of Periosteum-derived Cells
06:47

Isolation of Mesenchymal Stem Cells from Human Alveolar Periosteum and Effects of Vitamin D on Osteogenic Activity of Periosteum-derived Cells

Published on: May 4, 2018

Area of Science:

  • Sports Medicine
  • Nutritional Science
  • Endocrinology

Background:

  • Vitamin D is essential for bone health.
  • Emerging research links vitamin D to reduced risk of stress fractures, inflammation, infections, and impaired muscle function.
  • Vitamin D status in athletes is variable, influenced by training, location, and skin pigmentation.

Purpose of the Study:

  • To highlight the importance of vitamin D for athletes beyond bone health.
  • To emphasize the need for sports dietitians and physicians to assess and manage vitamin D levels in athletes.
  • To recommend target serum 25(OH)D concentrations for athletes.

Main Methods:

  • Review of existing studies on vitamin D status in athletes.
  • Analysis of factors influencing vitamin D levels, including diet, sun exposure, and endogenous synthesis.
  • Discussion of implications for sports nutrition and medical practice.

Main Results:

  • Athletes often have variable vitamin D status, frequently below recommended intake levels.
  • Inadequate endogenous synthesis, rather than insufficient intake, is the likely cause of deficiency.
  • Recommended serum 25(OH)D concentrations for athletes are >or=32 ng.mL(-1), preferably >or=40 ng.mL(-1).

Conclusions:

  • Vitamin D plays a critical role in athletic health, affecting injury risk, training, and performance.
  • Routine assessment and supplementation strategies for vitamin D are imperative for sports professionals.
  • Further research is required to fully elucidate the impact of vitamin D on athletic injury, training, and performance.