Andreato Leonardo V, Julio Ursula F, Gonçalves Panissa Valeria L, Del Conti Esteves João V, Hardt Felipe, Franzói de Moraes Solange M, Oliveira de Souza Camila, Franchini Emerson
1School of Physical Education and Sport, University of São Paulo, São Paulo, Brazil; 2State University of Santa Catarina, Center of Physical Education, Physiotherapy, and Sports, Florianópolis, Brazil; 3Department of Physiology and Biophisics, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil; and 4Human Physiology Department, State University of Maringá, Maringá, Brazil.
J Strength Cond Res. 2015 Jul;29(7):2015-25. doi: 10.1519/JSC.0000000000000819.
The aim of this study was to analyze performance, time structure, technical actions, and perceptual responses in Brazilian jiu-jitsu athletes during a simulated competition. For this purpose, 10 athletes were analyzed in a simulated competition (4 matches of 10 minutes). Physical tests and scales of the perception of effort and recovery were applied. The matches were recorded for the purpose of technical-tactical analysis and to determine the time structure. The main results show that in the simulated competition, reaction time (F(2.5,17.6) = 2.7; p = 0.087; η² = 0.28) and flexibility (F(7,63) = 1.5; p = 0.172; η² = 0.15) were unchanged across the matches. An analysis of variance showed a significant difference for grip endurance using the kimono (F(2.0,15.9) = 8.1; p = 0.004; η² = 0.50), which was not confirmed by the Bonferroni test. Jump height indicated postactivation potentiation after match 2 (F(7,63) = 3.5; p = 0.003; η² = 0.28). The maximal isometric handgrip strength in the dominant hand (F(3.2,28.6) = 2.9; p = 0.049; η² = 0.24) and in the nondominant hand (F(7,63) = 3.8; p = 0.002; η² = 0.30) showed a decline after matches 3 and 4. Although these data indicate the onset of fatigue, the effort/pause ratio of the matches was not altered (F(3,12) = 0.6; p = 0.624; η² = 0.13). The perceptions of effort (F(3,27) = 0.9; p = 0.469; η² = 0.09) and recovery (F(1.9,17.0) = 2.4; p = 0.125; η² = 0.21) and the degree of fatigue reported (F(1.5,13.8) = 0.5; p = 0.588; η² = 0.05) did not change during the simulated competition. Thus, it may be concluded that the execution of successive matches causes a decline in maximal isometric handgrip strength. No changes in the time structure of the matches or in the perceptual responses were observed.
本研究的目的是分析巴西柔术运动员在模拟比赛中的表现、时间结构、技术动作和感知反应。为此，对10名运动员进行了模拟比赛分析（4场10分钟的比赛）。进行了体能测试以及努力感知和恢复量表测试。为了进行技战术分析和确定时间结构，对比赛进行了录像。主要结果表明，在模拟比赛中，反应时间（F(2.5,17.6)=2.7；p = 0.087；η² = 0.28）和灵活性（F(7,63)=1.5；p = 0.172；η² = 0.15）在各场比赛中保持不变。方差分析显示，使用道服时的握力耐力存在显著差异（F(2.0,15.9)=8.1；p = 0.004；η² = 0.50），但经邦费罗尼检验未得到证实。跳跃高度表明在第2场比赛后出现了激活后增强效应（F(7,63)=3.5；p = 0.003；η² = 0.28）。优势手（F(3.2,28.6)=2.9；p = 0.049；η² = 0.24）和非优势手（F(7,63)=3.8；p = 0.002；η² = 0.30）的最大等长握力在第3场和第4场比赛后有所下降。尽管这些数据表明疲劳开始出现，但比赛的努力/暂停比没有改变（F(3,12)=0.6；p = 0.624；η² = 0.13）。努力感知（F(3,27)=0.9；p = 0.469；η² = 0.09）、恢复感知（F(1.9,17.0)=2.4；p = 0.125；η² = 0.21）以及报告的疲劳程度（F(1.5,13.8)=0.5；p = 0.588；η² = 0.05）在模拟比赛期间没有变化。因此，可以得出结论，连续比赛的进行会导致最大等长握力下降。未观察到比赛时间结构或感知反应的变化。
