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Edisto Library
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Phone: (843) 869-2355
Main Library
2 p.m. – 5 p.m.
Phone: (843) 805-6930
West Ashley Library
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Phone: (843) 766-6635
Folly Beach Library
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Phone: (843) 588-2001
John L. Dart Library
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Phone: (843) 722-7550
St. Paul's/Hollywood Library
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Phone: (843) 889-3300
Mt. Pleasant Library
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Phone: (843) 849-6161
Dorchester Road Library
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Edgar Allan Poe/Sullivan's Island Library
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John's Island Library
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McClellanville Library
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Wando Mount Pleasant Library
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Phone: (843) 805-6888
Otranto Road Library
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Phone: (843) 572-4094
Hurd/St. Andrews Library
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Phone: (843) 766-2546
Baxter-Patrick James Island
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Phone: (843) 795-6679
Bees Ferry West Ashley Library
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Phone: (843) 805-6892
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Phone: (843) 884-9741
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Female Distance Runners Training In Southeastern United States Have Adequate Vitamin D Status.
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- Author(s): Wentz, Laurel M.; Pei-Yang Liu; Ilich, Jasminka Z.; Haymes, Emily M.
- Source:
International Journal of Sport Nutrition & Exercise Metabolism; Oct2016, Vol. 26 Issue 5, p397-403, 7p, 1 Chart, 1 Graph- Subject Terms:
- Source:
- Additional Information
- Subject Terms:
- Abstract: Background: High rates of vitamin D deficiency have been reported in athletes. The purpose of this study was to evaluate the associations between vitamin D with bone health and parathyroid hormone (PTH) concentrations in female runners who trained at 30.4° degrees north. Methods: Serum 25-hydroxyvitamin D (25(OH) D), PTH, body composition, and bone mineral density (BMD) were measured in 59 female runners, aged 18-40 years. Stress fracture history, training duration and frequency were evaluated by questionnaire. As per National Endocrine Society cut-offs, serum vitamin D ranges were: 25(OH)D < 50 nmol/L for deficient; 50-75 nmol/L for insufficient; and ≥ 75 nmol/L for sufficient status. Results: Mean serum 25(OH)D concentrations were 122.6 ± 63.9 nmol/L, with 18.6% of subjects in the deficient (5.1%) or insufficient (13.5%) range. No significant differences were observed between sufficient and deficient/insufficient subjects for BMD, PTH, history of stress fractures, or demographic data. Conclusions: The majority of distance runners maintained sufficient vitamin D status, suggesting that training outdoors in latitude where vitamin D synthesis occurs year-round reduces the risk for vitamin D deficiency. Data do not support the indiscriminate supplementation of outdoor athletes in southern latitudes without prior screening. [ABSTRACT FROM AUTHOR]
- Abstract: Copyright of International Journal of Sport Nutrition & Exercise Metabolism is the property of Human Kinetics Publishers, Inc. and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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