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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Peterson, Nikki J. Kleppinger, Kent Hollis, Bruce W. Larson-Meyer, D. Enette Halliday, Tanya M. Thomas, Joi J. |
| Description | Country affiliation: United States Author Affiliation: Halliday TM ( Department of Family and Consumer Sciences, University of Wyoming, Laramie, WY 82071, USA.) |
| Abstract | UNLABELLED: Vitamin D deficiency is endemic in the general population; however, there is much to be learned about the vitamin D status of athletes. PURPOSE: the purposes of this study were to assess the prevalence of vitamin D insufficiency in collegiate athletes and to determine whether 25(OH)D concentrations are related to vitamin D intake, sun exposure, body composition, and risk for illness or athletic injury. METHODS: 25(OH) vitamin D concentrations were measured in 41 athletes (18 men/23 women, 12 indoor/29 outdoor athletes) throughout the academic year. Dietary intake and lifestyle habits were assessed via questionnaire, bone density was measured by dual energy x-ray absorptiometry, and injury and illness were documented as part of routine care. RESULTS: the 25(OH)D concentrations changed across time (P = 0.001) and averaged 49.0 ± 16.6, 30.5 ± 9.4, and 41.9 ± 14.6 ng·mL (mean ± SD) in the fall, winter, and spring, respectively, and were higher in outdoor versus indoor athletes in the fall (P < 0.05). Using 40 ng·mL as the cutoff for optimal status, 75.6%, 15.2%, and 36.0% of athletes had optimal status in the fall, winter, and spring, respectively. 25(OH)D concentrations were significantly (P < 0.05) correlated with multivitamin intake in the winter (r = 0.39) and tanning bed use in the spring (r = 0.48); however, status was otherwise not related to intake, lifestyle factors, or body composition. 25(OH)D concentrations in the spring (r = -0.40, P = 0.048) was correlated with frequency of illness. CONCLUSIONS: our results suggest that collegiate athletes can maintain sufficient status during the fall and spring but would benefit from supplementation during the winter to prevent seasonal decreases in 25(OH)D concentrations. Results further suggest that insufficient vitamin D status may increase risk for frequent illness. Future research is needed to identify whether vitamin D status influences injury risk during athletic training or competition. |
| ISSN | 01959131 |
| Issue Number | 2 |
| Volume Number | 43 |
| e-ISSN | 15300315 |
| Journal | Medicine & Science in Sports & Exercise |
| Language | English |
| Publisher | Lippincott Williams & Wilkins (on behalf of the American College of Sports Medicine) |
| Publisher Date | 2011-02-01 |
| Publisher Place | United States |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Athletic Injuries Epidemiology Diet Life Style Vitamin D Deficiency Vitamin D Administration & Dosage Blood Absorptiometry, Photon Adolescent Athletes Etiology Prevention & Control Bone Density Female Humans Longitudinal Studies Male Parathyroid Hormone Prevalence Complications Young Adult Journal Article Research Support, Non-u.s. Gov't Discipline Sports Science |
| Content Type | Text |
| Resource Type | Article |
| Subject | Orthopedics and Sports Medicine Physical Therapy, Sports Therapy and Rehabilitation Sports Science |
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