Beta-alanine supplementation and anaerobic performance in highly trained judo athletes

Baltic Journal of Health and Physical Activity

article

Mateusz Halz¹  Magdalena Kaszuba²  Jonatan Helbin¹  Sara Krzysztofik¹  Aleksandra Suchanecka³  Adam Zając¹ 

[1] The Jerzy Kukuczka Academy of Physical Education in Katowice;Institute of Sport Sciences, The Jerzy Kukuczka Academy of Physical Education in Katowice;Independent Laboratory of Health Promotion, Pomeranian Medical University in Szczecin

关键词: beta-alanine;    sports performance;    martial arts;    sports nutrition;    suplement;   

DOI  :  10.29359/BJHPA.14.2.01

学科分类：社会科学、人文和艺术（综合）

来源: Gdansk University Of Physical Education And Sport

【 摘 要 】

Introduction. Previous studies have shown that several weeks of beta-alanine (BA) supplementation increases anaerobic work capacity and decreases muscular fatigue, but limited research was conducted on elite martial arts athletes. Therefore, the purpose of this study was to investigate the effect of chronic BA supplementation on high-intensity intermittent upper and lower-body performance in highly-trained judo athletes. Material and Methods: Sixteen elite judo athletes (21.8 ± 2.5 years old) were randomly assigned to receive either BA (4 g/d over the first 2 weeks and 6 g/d in the last 2 weeks) or placebo for 4 weeks. Before and after BA supplementation, the athletes completed two double 30-s upper and lower limb Wingate tests, separated by 3 min. Blood samples were collected for lactate and di-carbonate concentration at baseline and post-exercise. Results: BA supplementation improved Lower and Upper Limb Total Work (p < 0.001) and Upper Limb Mean Power (p < 0.001) during Wingate Test. However, there were no significant differences in Lower Limb Mean Power in the BA group and in any obtained results in the placebo group. Additionally, a significant increase in the postworkout lactate and di-carbonate concentration (p < 0.001) was observed. Conclusions: Chronic supplementation of BA effectively enhances high-intensity intermittent upper and lower-body performance in highly-trained judo athletes.

【 授权许可】

CC BY-NC-ND