Evaluation of a Vitamin D Screening and Treatment Protocol Using a Seasonal Calculator in Athletes

William L. Hollabaugh, Paul J. Meirick, Chris P. Matarazzo, Alda M. Burston, Megan E. Camery, Kimberly A. Ferrill-Moseley, Jordan A. Bley, Jacquelyn S. Pennings, Robert W. Fitch, S. Bobo Tanner, Ashley R. Karpinos

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

Vitamin D is important in musculoskeletal health, and low serum vitamin D concentration is common in athletes. This study implemented a vitamin D screening and supplementation protocol in a cohort of National Collegiate Athletic Association Division I athletes using summer 25-hydroxyvitamin D concentration and a seasonal variation calculator to achieve sufficient vitamin D concentration year-round. After implementation of the Vitamin D Protocol, there was a nonsignificant difference in athletes with sufficient winter vitamin D concentrations (72.6%) compared with summer vitamin D concentrations (66.1%) (P = 0.40). The Seasonal Variation Calculator predicted winter vitamin D concentrations (8 ± 18 ng·mL-1) higher than actual winter vitamin D concentrations (P < 0.01). While most athletes (78%) believed vitamin D was important for athletic performance, athlete compliance to the Vitamin D Protocol was inconsistent. In the future, adjustment of vitamin D screening and supplementation protocols may help athletes achieve sufficient vitamin D status year-round.

Original languageEnglish
Pages (from-to)53-62
Number of pages10
JournalCurrent Sports Medicine Reports
Volume21
Issue number2
DOIs
StatePublished - Feb 1 2022

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