The Dependence of Running Speed and Muscle Strength on the Serum Concentration of Vitamin D in Young Male Professional Football Players Residing in the Russian Federation
- Bezuglov, Eduard
- Tikhonova, Aleksandra
- Zueva, Anastasiya
- Khaitin, Vladimir
- Lyubushkina, Anastasiya
- Achkasov, Evgeny
- Waśkiewicz, Zbigniew
- Gerasimuk, Dagmara
- Żebrowska, Aleksandra
- Nikolaidis, Pantelis Theodoros
- Rosemann, Thomas
- Knechtle, Beat
DOIAbstract
Background: Vitamin D insufficiency is prevalent among athletes, and it can negatively affect physical performance. At the same time, most of the available data were obtained from untrained individuals of various ages, and published studies performed in athletes led to contradictory conclusions. Methods: This cohort prospective study examined the serum concentration of 25-hydroxycalciferol (25(OH)D) and its association with running speed and muscle power in 131 young football players (mean age 15.6 ± 2.4 years). Results: 25(OH)D levels were below reference in 42.8% (serum 25(OH)D <30 ng/mL) and above reference in 30.5% of the participants (serum 25(OH)D 61-130 ng/mL). A comparison of the results of 5, 15, and 30 m sprint tests and the stand...
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