Department of Nutrition Physiology and Dietetics, Institute of Sport - National Research Institute, Warsaw, Poland.
Central Institute For Labour Protection - National Research Institute (CIOP- PIB), Department of Ergonomics, Warsaw, Poland.
PLoS One. 2018 Apr 9;13(4):e0195284. doi: 10.1371/journal.pone.0195284. eCollection 2018.
The aim was to examine the association between serum vitamin D concentration and isometric strength of various muscle groups, vertical jump performance, and repeated sprint ability in young ice hockey players. The secondary aim was to determine the association between vitamin D deficiency and indices of iron status.
Fifty male ice hockey players (17.2±0.9 years) participated in this cross-sectional study. Exercise performance was evaluated using isometric strength measures of upper and lower extremities, vertical jump performance and repeated sprint ability (RSA). Blood samples were collected for the determination of serum 25-hydroxyvitamin D (25(OH)D) and multiple indicies of iron status.
The mean serum 25(OH)D concentration was 30.4 ng·ml-1 and ranged from 12.5 to 91.4 ng·ml-1. Eleven participants (22%) had vitamin D deficiency and 20 athletes (40%) had vitamin D insufficiency. Serum 25(OH)D concentration was not positively correlated with isometric muscle strength, vertical jump performance, or RSA after adjusting for age, training experience, fat mass, fat free mass and height. Serum 25(OH)D concentration was not associated with indices of iron status.
Vitamin D insufficiency is highly prevalent in ice hockey players, but 25(OH)D concentration but it is not associated with exercise performance or indices of iron status.
本研究旨在探讨血清维生素 D 浓度与各肌肉群等长肌力、垂直跳跃表现和重复冲刺能力在年轻冰球运动员之间的关系。次要目的是确定维生素 D 缺乏与铁状态指标之间的关系。
50 名男性冰球运动员（17.2±0.9 岁）参与了这项横断面研究。通过上下肢等长肌力测量、垂直跳跃表现和重复冲刺能力（RSA）来评估运动表现。采集血液样本以测定血清 25-羟维生素 D（25（OH）D）和多项铁状态指标。
血清 25（OH）D 浓度的平均值为 30.4ng·ml-1，范围为 12.5-91.4ng·ml-1。11 名运动员（22%）患有维生素 D 缺乏症，20 名运动员（40%）患有维生素 D 不足症。在校正年龄、训练经验、体脂肪量、去脂体重和身高后，血清 25（OH）D 浓度与等长肌力、垂直跳跃表现或 RSA 均无相关性。血清 25（OH）D 浓度与铁状态指标无关。
冰球运动员普遍存在维生素 D 不足，但 25（OH）D 浓度与运动表现或铁状态指标无关。
