Institute of Bioscience, Graduate Program in Human Development and Technology, São Paulo State University (UNESP), Rio Claro, Brazil.
Department of Physical Education, São Paulo State University (UNESP), Bauru, Brazil.
PLoS One. 2021 Nov 12;16(11):e0259027. doi: 10.1371/journal.pone.0259027. eCollection 2021.
We used measurements of metabolic perturbation obtained after sparring to estimate energetics contribution during no-gi Brazilian jiu-jitsu. Ten advanced grapplers performed two six-minute sparring bouts separated by 24 hours. Kinetics of recovery rate of oxygen uptake was modelled and post-combat-sparring blood-lactate concentration measured to estimate oxygen equivalents for phospholytic and glycolytic components of anaerobic energetics, respectively. Linear regression was used to estimate end-combat-sparring rate of oxygen uptake. Regional and whole-body composition were assessed using dual X-ray absorptiometry with associations between these measurements and energy turnover explored using Pearson's correlation coefficient (significance, P < 0.05). Estimated oxygen equivalents for phospholytic and glycolytic contributions to anaerobic metabolism were 16.9 ± 8.4 (28%) and 44.6 ± 13.5 (72%) mL∙kg-1, respectively. Estimated end-exercise rate of oxygen uptake was 44.2 ± 7.0 mL∙kg-1∙min-1. Trunk lean mass was positively correlated with both total anaerobic and glycolytic-specific energetics (total, R = 0.645, p = 0.044; glycolytic, R = 0.692, p = 0.027) and negatively correlated with end-exercise rate of oxygen uptake (R = -0.650, p = 0.042). There were no correlations for any measurement of body composition and phospholytic-specific energetics. Six minutes of no-gi Brazilian jiu-jitsu sparring involves high relative contribution from the glycolytic component to total anaerobic energy provision and the link between this energetics profile and trunk lean mass is consistent with the predominance of ground-based combat that is unique for this combat sport. Training programs for Brazilian jiu-jitsu practitioners should be designed with consideration given to these specific energetics characteristics.
我们使用格斗后代谢紊乱的测量结果来估计无道服巴西柔术的能量贡献。10 名高级缠斗者进行了两次六分钟的格斗，间隔 24 小时。我们对恢复阶段的摄氧量动力学进行了建模，并测量了格斗后的血乳酸浓度，以分别估计无氧能量代谢中磷酸原和糖酵解成分的氧当量。线性回归用于估计格斗结束时的摄氧量。使用双能 X 射线吸收仪评估区域和全身组成，使用 Pearson 相关系数（显著性，P < 0.05）探索这些测量值与能量转换之间的关联。磷酸原和糖酵解对无氧代谢的估计氧当量分别为 16.9 ± 8.4（28%）和 44.6 ± 13.5（72%）mL·kg-1。估计的运动结束时的摄氧量为 44.2 ± 7.0 mL·kg-1·min-1。躯干瘦体重与总无氧和糖酵解特异性能量均呈正相关（总能量，R = 0.645，p = 0.044；糖酵解能量，R = 0.692，p = 0.027），与运动结束时的摄氧量呈负相关（R = -0.650，p = 0.042）。身体成分和磷酸原特异性能量的任何测量值之间均无相关性。6 分钟的无道服巴西柔术格斗涉及糖酵解成分对总无氧能量供应的高相对贡献，这种能量供应模式与躯干瘦体重之间的联系与这种格斗运动特有的基于地面的战斗占主导地位的情况一致。巴西柔术练习者的训练计划应考虑到这些特定的能量特征。
