Institute of Physical Education, Kazimierz Wielki University in Bydgoszcz, 2 Sportowa Str., 85-091, Bydgoszcz, Poland.
Department of Physiology, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, 24 Karłowicza Str, 85-092, Bydgoszcz, Poland.
J Int Soc Sports Nutr. 2021 Jun 7;18(1):44. doi: 10.1186/s12970-021-00447-z.
Intensive physical exercise that competitive sports athletes participate in can negatively affect their pro-oxidative-antioxidant balance. Compounds with high antioxidant potential, such as those present in chokeberry (Aronia melanocarpa), can prevent these adverse changes. We here investigated the effect of antioxidant supplementation on oxidative stress balance in young footballers.
The study was designed as a double-blind randomized trial. Diet of a group of young football players (male; n = 20; mean age, 15.8 years-old) was supplemented with 200 ml of chokeberry juice per day, for 7 weeks. The players were randomly assigned to the experimental (supplemented, FP-S; n = 12) and control (placebo, FB-C; n = 8) groups. Before and after the supplementation period, the participants performed a beep test. Venous blood was sampled for serum analysis before, immediately after, 3 h, and 24 h after the beep test. Serum levels of thiobarbituric acid reactive products, 8-hydroxy-2'-deoxyguanosine, total antioxidant capacity, iron, hepcidin, ferritin, myoglobin, and albumin, and morphological blood parameters (red blood cells, (RBC), haemoglobin (HGB), haematocrit (HCT) mean corpuscular volume (MCV) mean corpuscular haemoglobin (MCH), mean corpuscular haemoglobin concentration (MCHC), and lactic acid) were determined.
Chokeberry juice supplementation did not significantly affect the outcome of the beep test. The supplementation did not significantly affect any of the morphological, biochemical, or performance parameters analysed.
Chokeberry juice supplementation did not affect the measured parameters in the studied population, which may indicate insufficient antioxidant capacity of the juice.
竞技运动员进行的剧烈体育锻炼会对其氧化应激平衡产生负面影响。具有高抗氧化潜力的化合物，如沙棘（Aronia melanocarpa）中的化合物，可以预防这些不利变化。我们在此研究了抗氧化补充剂对年轻足球运动员氧化应激平衡的影响。
该研究设计为双盲随机试验。一组年轻足球运动员（男性；n=20；平均年龄 15.8 岁）的饮食每天补充 200 毫升沙棘汁，持续 7 周。运动员被随机分配到实验组（补充组，FP-S；n=12）和对照组（安慰剂组，FB-C；n=8）。在补充期前后，参与者进行了哔哔声测试。在哔哔声测试前、后立即、3 小时和 24 小时后抽取静脉血进行血清分析。测定血清中丙二醛反应产物、8-羟基-2'-脱氧鸟苷、总抗氧化能力、铁、hepcidin、铁蛋白、肌红蛋白和白蛋白的水平以及形态学血液参数（红细胞、血红蛋白、红细胞压积、平均红细胞体积、平均红细胞血红蛋白、平均红细胞血红蛋白浓度和乳酸）。
沙棘汁补充剂对哔哔声测试的结果没有显著影响。补充剂对分析的任何形态、生化或表现参数都没有显著影响。
沙棘汁补充剂对研究人群的测量参数没有影响，这可能表明果汁的抗氧化能力不足。
