Abstract：
:There is no clear evidence that vitamin D effectively improves physical capacity in high-level athletes. The aim of this study was to confirm that vitamin D supplementation of soccer players during eight-week high-intensity training would have a significant effect on their aerobic capacity. The subjects were divided into two groups: the experimental one that was supplemented with vitamin D (SG, n = 20), and the placebo group (PG, n = 16), not supplemented with vitamin D. All the players were subjected to the same soccer training described as High-Intensity Interval Training (HIIT). The data of the vitamin D level, PWC170, lactate threshold (LT) were collected just before and after the intervention. A significant increase in vitamin D concentration (119%) was observed in the supplemented group, while the non-supplemented group showed a decrease of 8.4%. The studied subjects improved VO2max results by 20% in the SG, and by 13% in the PG. The improvement in velocity at the LT was similar in both groups. Results of this study show that vitamin D can have a positive, though moderate, effect on aerobic performance in players subjected to high-intensity training in the form of small-sided games for 8 weeks.
journal_name
J Hum Kinetjournal_title
Journal of human kineticsauthors
Jastrzębska M,Kaczmarczyk M,Michalczyk M,Radzimiński Ł,Stępień P,Jastrzębska J,Wakuluk D,Suárez AD,López Sánchez GF,Cięszczyk P,Godlewski P,Król P,Jastrzębski Zdoi
10.2478/hukin-2018-0033subject
Has Abstractpub_date
2018-03-23 00:00:00pages
63-72eissn
1640-5544issn
1899-7562pii
hukin-2018-0033journal_volume
61pub_type
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