Brazilian Jiu-Jitsu Simulated Competition Part II: Physical Performance, Time-Motion, Technical-Tactical Analyses, and Perceptual Responses

ABSTRACTAndreato, LV, Julio, UF, Gonçalves Panissa, VL, Del Conti Esteves, JV, Hardt, F, Franzói de Moraes, SM, Oliveira de Souza, C, and Franchini, E. Brazilian jiu-jitsu simulated competition part IIPhysical performance, time-motion, technical-tactical analyses, and perceptual responses. J Strengt...

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Published in:	Journal of strength and conditioning research Vol. 29; no. 7; pp. 2015 - 2025
Main Authors:	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
Format:	Journal Article
Language:	English
Published:	United States Copyright by the National Strength & Conditioning Association 01-07-2015 Lippincott Williams & Wilkins Ovid Technologies
Subjects:	Adult Athletes Athletic Performance - physiology Brazil Competitive Behavior Fatigue Hand Strength - physiology Humans Male Martial Arts - physiology Muscle Fatigue - physiology Muscle Strength - physiology Perception Perceptions Physical Endurance - physiology Reaction Time Simulation Time Factors Variance analysis
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Summary:	ABSTRACTAndreato, LV, Julio, UF, Gonçalves Panissa, VL, Del Conti Esteves, JV, Hardt, F, Franzói de Moraes, SM, Oliveira de Souza, C, and Franchini, E. Brazilian jiu-jitsu simulated competition part IIPhysical performance, time-motion, technical-tactical analyses, and perceptual responses. J Strength Cond Res 29(7)2015–2025, 2015—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 (F2.5,17.6 = 2.7; p = 0.087; η = 0.28) and flexibility (F7,63 = 1.5; p = 0.172; η = 0.15) were unchanged across the matches. An analysis of variance showed a significant difference for grip endurance using the kimono (F2.0,15.9 = 8.1; p = 0.004; η = 0.50), which was not confirmed by the Bonferroni test. Jump height indicated postactivation potentiation after match 2 (F7,63 = 3.5; p = 0.003; η = 0.28). The maximal isometric handgrip strength in the dominant hand (F3.2,28.6 = 2.9; p = 0.049; η = 0.24) and in the nondominant hand (F7,63 = 3.8; p = 0.002; η = 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 (F3,12 = 0.6; p = 0.624; η = 0.13). The perceptions of effort (F3,27 = 0.9; p = 0.469; η = 0.09) and recovery (F1.9,17.0 = 2.4; p = 0.125; η = 0.21) and the degree of fatigue reported (F1.5,13.8 = 0.5; p = 0.588; η = 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.
Bibliography:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23
ISSN:	1064-8011 1533-4287
DOI:	10.1519/JSC.0000000000000819