Department of Clinical and Experimental Medicine, University of Parma, Azienda Ospedaliera/Universitaria di Parma, Via Gramsci 14, 43125, Parma, Italy.
J Endocrinol Invest. 2014 Jul;37(7):609-17. doi: 10.1007/s40618-014-0070-0. Epub 2014 Apr 3.
Vitamin D deficiency is common in the general population and may impair skeletal muscle function. Very few data are available regarding this condition in professional athletes.
To evaluate some skeletal parameters and in particular serum 25-hydroxyvitamin D status in professional rugby players during two different sunlight exposure times (October and early April) and to assess its impact on bone metabolism.
Twenty-one male healthy professional rugby players living in northern Italy at latitude of 44°55'N (age 24.6 ± 4.3 years; height 182.0 ± 0.05 cm; mass 96.3 ± 14.6 kg; BMI 28.9 ± 3.7 kg/m(2)) participated in this observational study. During 2012/2013 Italian rugby season, 25-hydroxyvitamin D, PTH and other related biochemical parameters were monitored. Dietary calcium intake and body composition by DXA were also evaluated.
Significant changes were observed between October and April data for 25-hydroxyvitamin D concentration (22.8 ± 5.8 vs. 19.1 ± 5.3 ng/ml; p = 0.001) whereas serum PTH, calcium and phosphorus plasma levels did not change. They presented with an appropriate daily intake of calcium (1,304.8 ± 477.9 mg; max 1,939 mg; min 228 mg).
Professional rugby athletes practicing a sport characterized by intense outdoor training and with good calcium intake are at higher risk of hypovitaminosis D that worsens significantly during times of low cutaneous vitamin D production. Further studies are warranted to evaluate whether an appropriate supplementation with cholecalciferol in professional athletes is needed.
维生素 D 缺乏在普通人群中很常见，可能会损害骨骼肌功能。关于职业运动员的这种情况，只有很少的数据。
评估 21 名生活在意大利北部（纬度 44°55'N）的男性职业橄榄球运动员在两个不同的阳光暴露时间（10 月和 4 月初）的一些骨骼参数，特别是血清 25-羟维生素 D 状况，并评估其对骨代谢的影响。
2012/2013 年意大利橄榄球赛季期间，21 名健康的男性职业橄榄球运动员（年龄 24.6 ± 4.3 岁；身高 182.0 ± 0.05 cm；体重 96.3 ± 14.6 kg；BMI 28.9 ± 3.7 kg/m(2))参与了这项观察性研究。监测了 25-羟维生素 D、甲状旁腺激素和其他相关生化参数。还评估了膳食钙摄入量和 DXA 测定的身体成分。
10 月和 4 月的数据显示，25-羟维生素 D 浓度有显著变化（22.8 ± 5.8 对 19.1 ± 5.3 ng/ml；p = 0.001），而血清甲状旁腺激素、钙和磷血浆水平没有变化。他们的钙摄入量合适（1304.8 ± 477.9 mg；最高 1939 mg；最低 228 mg）。
从事以户外训练强度大的运动的职业橄榄球运动员，且钙摄入量充足，患维生素 D 缺乏症的风险较高，而在皮肤产生维生素 D 能力较低的时期，这种风险会显著增加。需要进一步研究评估职业运动员是否需要补充适当的胆钙化醇。
