CH-PE University, Irvine 3 Labs, Chieti, Italy -
CH-PE University, Irvine 3 Labs, Chieti, Italy.
Minerva Med. 2018 Dec;109(6):451-456. doi: 10.23736/S0026-4806.18.05757-9.
This registry study evaluated the effects of G3 Sports supplement drink (G3) on performance and endurance in triathlon in amateur athletes in a period of 2 weeks of training. G3 is composed of a proprietary fruit juice blend high in carotenoid compounds as well as 100 mg of standardized French oak (Quercus robur) wood extract, Robuvit®, per 50 mL bottle. The antioxidant and anti-inflammatory actions of the compounds in G3 may improve training efficiency (decreasing post-triathlon muscular pain, cramps and improve recovery time) and decrease post-training plasma free radicals (PFR).
We selected 50 healthy subjects available to follow the registry plan (age 30-40). No clinical or risk condition were present; no medications were used. Subjects followed a free diet. None used sport supplements (aminoacids or anabolic products). The use of rehydrating drink (Polase) was suggested to all subjects. The only other admitted beverage was Gatorade for use by the control group only. Triathlon total time as well as objective markers of oxidative stress, measured as plasma concentration of free radicals (PFR), and intravascular hemolysis (hemoglobin, serum ferritin, unconjugated bilirubin (UBR) and lactate dehydrogenase (LDH) were measured.
Fifty subjects were included: 25 using the supplement; 25 subjects did not use the supplement and acted as controls. Routine blood tests were normal at inclusion and after the final triathlon. The two groups were comparable considering men and women performances at inclusion and age distribution. Drinking and training regimens were comparable between the groups. No side effects or tolerance problems were reported; all G3 drinks were used as indicated. The final "measurement" run was not competitive but chronometric. All subjects completed the test. All subjects performances improved with training. The improvements were seen in parallel both in men and women. The improvement was significantly greater with G3 (P<0.05). The final variation in time was superior with G3 vs. controls (P<0.05). Oxidative stress (PFR), assessed 1 h after the final run, was higher in controls (P<0.05). The higher level of PFR may be associated to a slower recovery time after training and after the test run. After the final test run triathlon, there were no significant changes in hemoglobin or serum ferritin in both groups. Athletes using G3 had a lower variation in UBR and LDH; however, both were significantly increased in controls (P<0.05).
G3 supplementation significantly improved exercise performance in two weeks training time and appeared to significantly decrease oxidative stress and hemolysis resulting from exercise.
本注册研究评估了 G3 运动补充饮料（G3）对业余运动员铁人三项训练两周期间的表现和耐力的影响。G3 由一种专有的高类胡萝卜素化合物的果汁混合物以及 100 毫克标准化法国橡木（Quercus robur）木提取物 Robuvit ® 组成，每 50 毫升瓶。G3 中的化合物的抗氧化和抗炎作用可能会提高训练效率（减少铁人三项赛后肌肉疼痛、抽筋并缩短恢复时间），并减少训练后血浆自由基（PFR）。
我们选择了 50 名符合注册计划要求的健康受试者（年龄 30-40 岁）。没有临床或风险条件；没有使用药物。受试者遵循自由饮食。没有人使用运动补品（氨基酸或合成代谢产品）。建议所有受试者使用补液饮料（Polase）。唯一允许的其他饮料是佳得乐，仅供对照组使用。铁人三项总时间以及作为氧化应激客观标志物的血浆自由基浓度（PFR）和血管内溶血（血红蛋白、血清铁蛋白、未结合胆红素（UBR）和乳酸脱氢酶（LDH））均进行了测量。
50 名受试者入组：25 名使用补充剂；25 名受试者未使用补充剂作为对照组。最终铁人三项赛后，常规血液检查在入组时和最终时均正常。考虑到入组时男性和女性的表现以及年龄分布，两组具有可比性。两组的饮酒和训练方案相似。没有报告副作用或耐受性问题；所有 G3 饮料均按说明使用。最终的“测量”跑步不是竞争性的，而是计时性的。所有受试者均完成了测试。所有受试者的表现都随着训练而提高。男女均平行提高。G3 的改善更为显著（P<0.05）。与对照组相比，G3 的最终时间变化更优（P<0.05）。在最后一次跑步后 1 小时评估的氧化应激（PFR）在对照组中更高（P<0.05）。较高的 PFR 水平可能与训练和测试后恢复时间较慢有关。在最后一次铁人三项赛后，两组的血红蛋白或血清铁蛋白均无显著变化。使用 G3 的运动员 UBR 和 LDH 的变化较小；然而，对照组的变化均显著增加（P<0.05）。
G3 补充剂在两周的训练时间内显著提高了运动表现，并且似乎显著降低了运动引起的氧化应激和溶血。
