Background. Competitive sport has the potential for high levels of stress and anxiety that may affect performance and increase the risk of injuries. While benefits of pre-training assumption of N-3 polyunsaturated fatty acids are well known, poor data are available on Schisandra chinensis. Schisandra chinensis is a medicinal plant in use in Chinese medicine which increases physical working capacity and affords a stress protective effect. Objectives. We tested, in an open pilot study, the effect on competition related stress, anxiety and self-confidence of a novel formulation containing: PUFAs, Schisandra chinensis extract and vitamin D3. Methods. A novel formulation containing N-3 polyunsaturated fatty acids (PUFAs), Schisandra chinensis extract and vitamin D3, five ml per day was administered to one group of fifteen elite sport athletes (basketball players). Competitive State Anxiety Inventory-2 (CSAI-2) tests were administered at baseline and after 3 months. Results. All subjects completed the 3 months period of the study, all declaring a consumption >75% of daily recommended dose. No adverse event were registered. After intervention, the median cognitive state anxiety score remained mild (score 16) even if with an overall statistically significative decrease (p=0.005); same results were registered after intervention for the somatic state anxiety score (score 16) with an overall statistically significative decrease (p=0.008) and for the self-confidence score (score 22, range 15-30) with an overall statistically significative increase (p=0.008). Conclusion. The results showed the positive effect of the treatment on the control of stress and anxiety and the improvement of self-confidence in a large majority of the subject enrolled. However, further studies are needed to confirm our findings.

中文翻译：

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补充五味子提取物和维生素D3的新型n-3多不饱和脂肪酸配方对一组优秀运动运动员的比赛相关压力，焦虑和自信心的影响

背景。竞技体育有可能产生高强度的压力和焦虑，这可能会影响运动表现并增加受伤的风险。虽然众所周知，N-3多不饱和脂肪酸的训练前假设有益，但五味子的数据不多。五味子是一种用于中药的药用植物，可增加体力劳动能力并具有应力保护作用。目标。在一项开放的先导研究中，我们测试了一种新配方对竞争相关压力，焦虑和自信心的影响，该配方包含：PUFA，五味子提取物和维生素D3。方法。包含N-3多不饱和脂肪酸（PUFA），五味子提取物和维生素D3的新型配方，每天向一组15名精英运动运动员（篮球运动员）服用5毫升水。在基线时和3个月后进行竞争性状态焦虑量表2（CSAI-2）测试。结果。所有受试者均完成了3个月的研究，所有受试者均宣称消耗量超过每日推荐剂量的75％。没有不良事件发生。干预后，即使总体统计学上显着降低（p = 0.005），中位认知状态焦虑评分仍保持轻微（得分16）。干预后，躯体状态焦虑评分（得分16）总体统计学意义显着降低（p = 0.008）和自信得分（得分22，范围15-30）与总体统计学显着升高（ p = 0.008）。结论。结果显示，该治疗对大多数入选受试者的压力和焦虑控制以及自信心的改善均具有积极作用。但是，需要进一步的研究来证实我们的发现。