The impact of vitamin D supplementation on body fat mass in elite male collegiate athletes.
The impact of vitamin D supplementation on body fat mass in elite male collegiate athletes.
复制标题
补充维生素 D 对优秀男性大学运动员体脂量的影响。
DOI：
10.1186/s12986-021-00578-9
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发表时间：
2021-05-21
影响因子：
4.5
通讯作者：
Imagama S
中科院分区：
文献类型：
--
作者：
Kawashima I;Tsukahara T;Kawai R;Mizuno T;Ishizuka S;Hiraiwa H;Imagama S
补充维生素D是否对身体脂肪百分比有任何影响，特别是在精英运动员中，尚不清楚。本研究旨在探讨补充维生素D对大学优秀男子运动员血清维生素D水平的影响，并分析其对体脂百分比的影响。在这项前瞻性队列研究中，我们共招募了42名优秀的男性大学运动员。2020年3月，进行了身体成分监测和血液检查。所有运动员每天服用25 g维生素D3补充片。补充剂的使用取决于运动员的偏好。在研究期间，由于2019冠状病毒病爆发，他们的俱乐部活动停止了2个月。大约3个月后进行了第二次检查，与第一次检查相似。每个运动员的补充使用也得到了证实。参与者被分为非补充组（无补充，n=15）和补充组（补充，n=27）。关于初始检查时的基线数据，无补充剂组和补充剂组的平均体脂百分比（分别为9.0%和12.1%; P=0.03）和血清25（OH）D水平（分别为22.7和18.5ng/mL，P=0.02）存在显著差异。在第二次检查时，两组的结果无显著差异。第一次检查到第二次检查的平均变化值，两组间体脂百分比（分别为1.9和0.2%，P=0.02）和血清25（OH）D水平（分别为1.7和7.2ng/mL，P<0.001）差异有显著性。体脂百分比变化率与血清25（OH）D水平变化值呈显著负相关（r=0.37，P=0.02）。每日补充25克维生素D可显著提高大学优秀男子运动员血清25（OH）D水平。维生素D补充剂可能在体育活动减少的情况下保持运动员体脂百分比方面发挥作用。
Whether vitamin D supplementation has any effect on body fat percentage, especially among elite athletes, remains unclear. The aim of this study was to evaluate the effect of vitamin D supplementation on serum vitamin D level in elite male collegiate athletes and to analyze its effect on body fat percentage. We enrolled a total of 42 elite male collegiate athletes in this prospective cohort study. In March 2020, body composition monitoring and blood test were performed. All athletes were provided with vitamin D3 supplement tablets of 25g/day. The use of the supplement was dependent on athletes preference. During the study period, their club activities were stopped for 2months due to the coronavirus disease 2019 outbreak. A second examination, similar to the first one, was performed after approximately 3months. Supplement usage by each athlete was also confirmed. The participants were divided into a non-supplement group (without supplementation, n=15) and a supplement group (with supplementation, n=27). Regarding baseline data at initial examination, the non-supplement and supplement groups showed significant differences in the mean body fat percentage (9.0% and 12.1%, respectively; P=0.03) and serum 25(OH)D level (22.7 and 18.5ng/mL, respectively, P=0.02). At the time of the second examination, there were no significant differences in the results of both the groups. In terms of mean change value from the first to the second examination, there were significant differences in body fat percentage (1.9 and 0.2%, respectively, P=0.02) and serum 25(OH)D level (1.7 and 7.2ng/mL, respectively, P<0.001) between the two groups. A significant negative correlation was observed between the change ratio of body fat percentage and change value of serum 25(OH)D level (r=0.37, P=0.02). Vitamin D supplementation of 25g/day significantly increased the serum 25(OH)D level in elite male collegiate athletes. Vitamin D supplementation may play a role in maintaining athletes body fat percentage under circumstances where sports activity has decreased.
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