Schor B, Silva S Gomes da, Almeida A A de, Pereira C A B, Arida R M
Departamento de Ortopedia, Instituto Vita, São Paulo, SP, Brasil.
Departamento de Fisiologia, Universidade Federal de São Paulo, São Paulo, SP, Brasil.
Braz J Med Biol Res. 2019 Apr 8;52(4):e8154. doi: 10.1590/1414-431X20198154.
Elite judo demands high levels of physical and psychological skills. The brain-derived neurotrophic factor (BDNF) may be of particular interest in sports medicine for its ability to promote neuroplasticity. We investigated the plasma BDNF before and after a judo training session (Randori) and the maximal incremental ramp test (MIRT) in athletes from the Brazilian national judo team and compared the results between both exercise stimuli and sexes. Fifty-six elite judo athletes were recruited who performed each task on a separated day. Anthropometric, physiological, athletic parameters, and plasma BDNF levels were measured before and after the tasks (Randori and MIRT). The groups presented similar anthropometric and physiological characteristics at baseline for the two tasks. All athletes reached maximal performance for the tasks. Plasma levels of BDNF increased significantly after Randori and MIRT for all subjects, both men and women. When comparing both exercise stimuli, a greater increase in BDNF was observed after Randori. There was no significant difference in the delta BDNF between sexes. Our findings indicate that training specificity of sport gestures influenced the increase of blood BDNF levels.
精英柔道需要高水平的身体和心理技能。脑源性神经营养因子（BDNF）因其促进神经可塑性的能力，可能在运动医学中备受关注。我们调查了巴西国家柔道队运动员在柔道训练课程（Randori）和最大递增斜坡测试（MIRT）前后的血浆BDNF水平，并比较了两种运动刺激以及不同性别之间的结果。招募了56名精英柔道运动员，他们在不同的日子分别完成每项任务。在任务（Randori和MIRT）前后测量人体测量学、生理学、运动参数和血浆BDNF水平。两组在两项任务的基线时呈现出相似的人体测量学和生理学特征。所有运动员在任务中都达到了最大表现。所有受试者（包括男性和女性）在Randori和MIRT后血浆BDNF水平均显著升高。在比较两种运动刺激时，观察到Randori后BDNF的升高幅度更大。不同性别之间的BDNF变化量没有显著差异。我们的研究结果表明，运动姿势的训练特异性影响了血液BDNF水平的升高。
