Human Performance and Sport Research Group, Postgraduate Program in Physical Education, Federal University of Triangulo Mineiro, Uberaba, Minas Gerais, Brazil. ; University Center of Belo Horizonte (Uni-BH), Department of Environmental, Biological and Health Sciences, Belo Horizonte, Minas Gerais, Brazil.
Laboratory of Exercise Biochemistry, Biochemistry Department, Biology Institute, State University of Campinas, Campinas, Sao Paulo, Brazil.
J Hum Kinet. 2014 Dec 30;44:249-57. doi: 10.2478/hukin-2014-0130. eCollection 2014 Dec 9.
The aim of this study was to investigate the neuromuscular performance responses following successive Brazilian Jiu-Jitsu (BJJ) fights. Twenty-three BJJ athletes (age: 26.3 ± 6.3 years; body mass: 79.4 ± 9.7 kg; body height: 1.80 ± 0.1 m) undertook 3 simulated BJJ fights (10 min duration each separated by 15 min of rest). Neuromuscular performance was measured by the bench press throw (BPT) and vertical counter movement jump (VCMJ) tests, assessed before the 1st fight (Pre) and after the last one (Post). Blood lactate (LA) was measured at Pre, 1 min Post, and 15 min Post fights. Paired t-tests were employed in order to compare the BPT and VCMJ results. One-way ANOVA with Bonferroni post hoc tests were utilized to compare LA responses. The results revealed a significant (p < 0.05) increase in VCMJ performance (40.8 ± 5.5 cm Pre vs. 42.0 ± 5.8 cm Post), but no significant changes in the BPT (814 ± 167 W Pre vs. 835 ± 213 W Post) were observed. LA concentration increased significantly (p < 0.05) at Post, both in the 1st min (10.4 ± 2.7 mmol L-1) and the 15th min (6.4 ± 2.5 mmol L-1) of recovery. We concluded that successive simulated BJJ fights demanded considerable anaerobic contribution of ATP supply, reinforcing the high-intensity intermittent nature of the sport. Nevertheless, no negative impact on acute neuromuscular performance (power) was observed.
本研究旨在探讨连续巴西柔术（BJJ）比赛后神经肌肉表现的反应。23 名 BJJ 运动员（年龄：26.3±6.3 岁；体重：79.4±9.7 公斤；身高：1.80±0.1 米）进行了 3 次模拟 BJJ 比赛（每场 10 分钟，间隔 15 分钟休息）。神经肌肉表现通过卧推抛球（BPT）和垂直反向跳跃（VCMJ）测试进行测量，在第一次比赛前（Pre）和最后一次比赛后（Post）进行评估。血乳酸（LA）在 Pre、1 分钟 Post 和 15 分钟 Post 时进行测量。采用配对 t 检验比较 BPT 和 VCMJ 结果。采用单因素方差分析和 Bonferroni 事后检验比较 LA 反应。结果显示，VCMJ 表现显著增加（Pre 时为 40.8±5.5cm，Post 时为 42.0±5.8cm，p<0.05），但 BPT 无显著变化（Pre 时为 814±167W，Post 时为 835±213W）。LA 浓度在 Post 时显著增加（p<0.05），第 1 分钟时为 10.4±2.7mmol L-1，第 15 分钟时为 6.4±2.5mmol L-1。我们得出结论，连续的模拟 BJJ 比赛需要相当大的 ATP 供应的无氧贡献，这加强了该运动的高强度间歇性性质。然而，急性神经肌肉表现（力量）没有受到负面影响。
