Department of Motor Performance, Faculty of Physical Education and Mountain Sports, Transilvania University of Brasov, 500036 Brasov, Romania.
Department of Physical Education and Sport, 1 Decembrie 1918 University of Alba Iulia, 510009 Alba Iulia, Romania.
Int J Environ Res Public Health. 2022 Oct 21;19(20):13700. doi: 10.3390/ijerph192013700.
The purpose of this study was to evaluate the effect of 8-week β-alanine supplementation on C-Reactive Protein (CRP), interleukin-6 (IL-6), body composition, and bio-motor abilities in elite male basketball players. Twenty male basketball players (age: 23 + 0.6 years; body mass: 78.3 + 4.8 kg; height:185.3 + 5.4 cm, %BF, 15.2 ± 4.8) volunteered to participate in this study. They were divided into a β-alanine group (BG, N = 10) and a placebo group (PG, N = 10). All players were preparing for university competitions and had played for over five years. Players used 6.4 g/d of β-alanine in BG and maltodextrin in PG. The participants were involved in regular basketball training three months before the study. CRP, IL-6, body composition parameters, and bio-motor abilities were measured before starting the exercises and after completing the eight-week training period. The research findings showed a significant decrease in CRP and IL-6 and an increase in anaerobic peak power between the pre-test and post-test, as well as between BG and PG groups ( < 0.05). Although the other measured factors were a relative improvement compared to the pre-test and also compared to PG, these changes were not statistically significant ( < 0.05). Eight weeks of β-alanine supplementation ameliorated increases in IL-6 and CRP associated with in-season physical stressors in collegiate basketball players. These changes in pro-inflammatory cytokines suggest that β-alanine supplementation may be a useful nutritional strategy for immune regulation and can also improve anaerobic performance compared to PG.
本研究旨在评估 8 周 β-丙氨酸补充对精英男性篮球运动员 C-反应蛋白(CRP)、白细胞介素-6(IL-6)、身体成分和生物力学能力的影响。20 名男性篮球运动员(年龄:23±0.6 岁;体重:78.3±4.8kg;身高:185.3±5.4cm,体脂率 15.2±4.8)自愿参加本研究。他们被分为 β-丙氨酸组(BG,N=10)和安慰剂组(PG,N=10)。所有运动员都在为大学比赛做准备,且已经打球超过五年。BG 组运动员每天使用 6.4gβ-丙氨酸,PG 组则使用麦芽糊精。在研究开始前三个月,运动员们都参与了常规的篮球训练。在开始运动前和完成八周训练期后,我们测量了 CRP、IL-6、身体成分参数和生物力学能力。研究结果显示,CRP 和 IL-6 显著下降,无氧峰值功率在预测试和后测试之间以及 BG 和 PG 组之间都有所增加(<0.05)。尽管与预测试相比,其他测量因素也有相对改善,且与 PG 相比也有所改善,但这些变化没有统计学意义(<0.05)。八周的 β-丙氨酸补充改善了与大学篮球运动员赛季身体应激相关的 IL-6 和 CRP 的增加。这些促炎细胞因子的变化表明,β-丙氨酸补充可能是一种用于免疫调节的有用营养策略,并且与 PG 相比,还可以提高无氧性能。