Impact of Vitamin D on Physical Efficiency and Exercise Performance—A Review A vitamin D shortage in athletes and in the general population seems to be a big problem. The most famous role of vitamin D is the regulation of calcium homopostasis.There is a strong relationship between vitamin D and bone health.In addition, its concentrations are associated with the muscle function and the immune response both in general and a sporting population. The vitamin D mirror is strongly related to the presence of vitamin D receptors in most human extra-skeletal cells. The expression of multiple myogen transcription factors that promote the proliferation and differentiation of muscle cells is caused by the exposure of skeletal muscles to vitamin D. The aim of this overview was to summarize the current understanding of the importance of vitamin D for the training performance and physical performance in terms of analysis of the influence of vitamin D on multiple possible mechanisms.
High-quality research studies are required in which free 25 (OH) D as a better marker for the vitamin D status, the output value of 25 (OH) D and several ways of vitamin D effect and use in athletes are taken into account. The whole article can be found under https://www.mdpi.com/2072-6643/11/11/2826