School of Physiotherapy, Faculty of Health Sciences, Universidad Francisco de Vitoria, 28223 Madrid, Spain.
Faculty of Sport Sciences, University of Murcia, 30720 Murcia, Spain.
Nutrients. 2020 Jan 9;12(1):188. doi: 10.3390/nu12010188.
Whereas beetroot juice (BJ) supplementation is shown to increase physical performance in endurance activities, its benefits in team sports has been barely studied. In this randomized placebo-controlled study, we investigated the effects of BJ acute supplementation in improving neuromuscular performance and physical match activity in basketball. Ten young male competitive basketball players aged 15-16 years received 140 mL of BJ or placebo (PLA) on two separated days in a balanced cross-over design. Testing sessions comprised a neuromuscular test battery consisting of a countermovement jump (CMJ), isometric handgrip strength, 10-m/20-m sprint and agility T-test, followed by a 40-minute simulated basketball match. Physical match activity (distances, speeds, accelerations, and decelerations) was monitored using an inertial tracking system (Wimu Pro) Results revealed no significant effects of BJ on CMJ ( = 0.304, ES = 0.13), isometric handgrip strength ( = 0.777, ES = 0.06), 10-m ( = 0.820, ES = 0.10), and 20-m sprint ( = 0.540, ES = 0.13), agility T-test ( = 0.979, ES ≤ 0.01) and any physical match demands ( > 0.151, ES = 0.13-0.48). Acute moderate doses of BJ (12.8 mmol of NO) was not effective in improving neuromuscular performance (jump height, isometric handgrip strength, sprint, and agility) or physical match requirements in young trained basketball players the day of the competition.
虽然甜菜根汁（BJ）补充剂已被证明可提高耐力活动中的身体表现，但它在团队运动中的益处几乎没有得到研究。在这项随机安慰剂对照研究中，我们研究了 BJ 急性补充对改善篮球中神经肌肉表现和身体比赛活动的影响。十名 15-16 岁的年轻男性竞技篮球运动员在平衡交叉设计中在两天内分别接受 140 毫升 BJ 或安慰剂（PLA）。测试包括神经肌肉测试电池，包括反跳（CMJ）、等长握力、10 米/20 米冲刺和敏捷 T 测试，然后进行 40 分钟的模拟篮球比赛。使用惯性跟踪系统（Wimu Pro）监测身体比赛活动（距离、速度、加速度和减速度）。结果显示，BJ 对 CMJ 没有显著影响（ = 0.304，ES = 0.13），等长握力（ = 0.777，ES = 0.06），10 米（ = 0.820，ES = 0.10）和 20 米冲刺（ = 0.540，ES = 0.13），敏捷 T 测试（ = 0.979，ES ≤ 0.01）和任何身体比赛需求（ > 0.151，ES = 0.13-0.48）。急性中等剂量的 BJ（12.8 mmol 的 NO）在比赛当天对年轻训练有素的篮球运动员的神经肌肉表现（跳跃高度、等长握力、冲刺和敏捷）或身体比赛要求没有效果。
