OBJECTIVES Brazilian Jiu-Jitsu (BJJ) has grown massively in recent years, but its positive effects in non-elite population has not been analyzed. The purpose of current study was to exam the effects ...of BJJ on body composition, health fitness components, and functional movement screening (FMS) in healthy young adults.METHODS Combined exercise program was composed of aerobic and resistance exercises. All participants were randomly assigned either into BJJ exercise group (BJEG, n=10, 28.10±2.64 years) or combined exercise group (CEG, n=10, 28.20±3.43 years). Exercise intervention was conducted for ninety minutes per session, three times per week for twelve weeks.RESULTS Body fat (%) and muscle mass (kg) were significantly improved in both groups. Muscle strength in upper and lower extremity, muscle endurance, flexibility, power were significantly improved in both groups. Cardiorespiratory fitness in BJEG was significantly improved. Also, FMS total score and deep squat score showed significant improvement in both groups.CONCLUSIONS BJJ is an effective exercise for health and fitness management purpose in non-elite healthy young adults.
O objetivo deste estudo foi caracterizar o perfil morfofuncional de atletas amadores da modalidade Brazilian Jiu-jitsu (BJJ), fazendo uma comparação por sexo. Participaram, 19 praticantes da ...modalidade (7 mulheres: 21,29 ± 4,68 anos de idade; 25,84 ± 3,90 kg/m2 de IMC; 22,03 ± 8,20 % de gordura corporal e 12 homens: 22,03 ± 6,04 anos de idade; 23,98 ± 4,08 kg/m2 de IMC; 14,53 ± 8,66 % de gordura corporal) a pelo menos um ano e com nível de graduação entre faixa branca e azul. Estes foram submetidos a avaliações de composição corporal, flexibilidade, força de preensão manual e potência de membros inferiores. Após as avaliações a comparação entre os sexos foi realizada através do teste t Student para amostrar independentes (p≤0,05). Diante da análise as únicas variáveis que apresentaram diferenças significantes foram aquelas relacionadas a capacidade de força de preensão manual (direita: 47,35 ± 8,77N e 30,28 ± 6,65N; esquerda: 40,75 ± 8,45N e 25,57 ± 5,94N) e altura do salto vertical (33,34 ± 4,98cm e 23,33 ± 4,30cm), sendo estatisticamente superiores para os homens. As demais variáveis não apresentaram diferenças significantes. Conclui-se que os homens apresentam maiores níveis de força em comparação as mulheres.
The comparison of aggression level between women practicing Hip-Hop and Brazilian Jiu-Jitsu against the average aggression level of Polish women. 27 women practicing Hip-Hop and 33 women practicing ...Brazilian Jiu-Jitsu were questioned using the Polish adaptation of the survey “Aggression questionnaire” by Buss, Perry from “Amity Institute” to check the aggression level. Gathered data was compared against the results of Polish women control group.
The comparison of aggression level between women practicing Hip-Hop and Brazilian Jiu-Jitsu against the average aggression level of Polish women. 27 women practicing Hip-Hop and 33 women practicing ...Brazilian Jiu-Jitsu were questioned using the Polish adaptation of the survey “Aggression questionnaire” by Buss, Perry from “Amity Institute” to check the aggression level. Gathered data was compared against the results of Polish women control group.
Laterality is considered relevant to performance in combat sports with particular emphasis being placed on fighters' handedness and combat stance. Such approach, however, may fall too short to ...understand the role of laterality in sports where fighters are allowed to use their hands and feet standing and on the ground. Here, we referred to grappling sports (i) to estimate lateral preferences in selected combat situations and (ii) to test for an association between those preferences and common measures of hand and foot preference. Based on the responses of 135 experienced grapplers who participated in an online questionnaire lateral preference, at the group-level, was revealed in 12 out of 18 combat situations. At an item-level, common measures of lateral preference and grappling-specific lateral preference were related in three out of 36 conditions (footedness only, not handedness). Across items, scores in a grappling-specific laterality index were positively related with foot but not with hand preference scores. Implications for the assessment of lateral preference in combat sports and the use of item-specific terminology in this context are discussed. On a broader scale, we also elaborate on potential consequences of our findings with regard to evolutionary explanations of the maintenance of left-handedness in humans.
Aims: To verify a Brazilian Jiu-Jitsu fighter profile studied in the literature and to characterize the variables, techniquesand instruments for measuring sports performance. Methods: The review was ...carried out according to the declaration criteriaPRISMA, considering studies between the years 2010 and 2020 in the SportDiscus, PubMed/Medline, SCOPUS, LILACS,Dialnet and SCIELO. Results: A total of 51 studies were chosen, mostly of Brazilian origin (82.4%). The total sample wasintegrated by 1,493 fighters (98% men), with an average age of 27.1 years. The most assess variables were the physiological (24studies) and the physical (13 studies). Of them, the most analyzed were the lactate and grip force, respectively. The assessmentinstruments most used were the Borg Rating of Perceived Exertion for the physiological variables (13 studies), the dynamometryfor the physical variables (13 studies), and the weight scale for anthropometric and nutritional variables (15 studies). Conclusions:It has been generated a Brazilian Jiu-Jitsu fighter profile. The most frequently studied variables were the physiological andphysical. The most assessment instrument used were the weight scale, dynamometry and Borg Rating of Perceived Exertion.Moreover, there are few studies that perform measurements in real time, in female fighters, in Brazilian Jiu-Jitsu fighters andwho report the fighter style.
Objetivos: Verificar un perfil de luchador de Jiu-Jitsu brasileño estudiado en la literatura y caracterizar las variables e instrumentos utilizados para valorar el rendimiento deportivo. Metodología: La revisión se realizó de acuerdo con los criterios de declaración PRISMA, considerando estudios entre los años 2010 y 2020 en el SportDiscus, PubMed / Medline, SCOPUS, LILACS, Dialnet y SCIELO. Resultados: Se eligieron un total de 51 estudios, en su mayoría de origen brasileño(82,4%). La muestra total estuvo integrada por 1.493 combatientes (98% hombres), con una edad promedio de 27,1 años. Las variables más evaluadas fueron las fisiológicas (24 estudios) y las físicas (13 estudios). De ellos, los más analizados fueron el lactato y la fuerza de agarre, respectivamente. Los instrumentos de evaluación más utilizados fueron el Borg Rating of Perceived Esfuerzo para las variables fisiológicas (13 estudios), la dinamometría para las físicas (13 estudios) y la escala de pesopara las variables antropométricas y nutricionales (15 estudios). Conclusiones: Se ha generado un perfil de luchador de Jiu-Jitsu brasileño. Las variables más estudiadas fueron las fisiológicas y físicas. Los instrumentos de evaluación más utilizados fueron la escala de peso, la dinamometría y el índice de Borg de esfuerzo percibido. Además, existen pocos estudios que realicen mediciones en tiempo real, en luchadoras femeninas, en luchadoras de Jiu-Jitsu brasileñas y que reporten el estilo de luchadores.
Background and Study Aim
The main aim of the study was to determine the level of optimism and life satisfaction among men of different ages who professionally or recreationally practice judo and ...Brazilian jiu-jitsu.
Material and Methods
The study involved 43 judo athletes, 43 Brazilian jiu-jitsu athletes (BJJ) and 42 persons in a control group (homogenously selected in terms of sex and age). The study used the SWLS scale to determine the satisfaction with life and the LOT-R test to determine the level of optimism. Descriptive parametric statistics were presented in order to show the analysed variables. Due to the number of subjects in groups, nonparametric statistics were used in the analysis – to analyse the differences, the Anova Kruskal-Wallis test; to analyse correlations between variables, the agglomerations method using Euclidean distances (single bond in space). In the analysis of the magnitude of the influence of variables on life satisfaction and optimism, parameter β was used – the significance of the parameter (p) was based on Wald's statistics.
Results
Analysis of intergroup differences for the judo, BJJ, and control groups revealed significant differences in education, social status, professional work, and health condition.
The compared psychological variables – quality of life and life orientation in terms of standardised results did not reveal significant differences; however, the dichotomous division of the quality of life allowed indicating the distinctness of the compared groups.
The analysis of multiple comparisons revealed that the differences only concerned the characteristics of the judo and the control groups, while the BJJ and the judo groups significantly differed in the quality and the length of their sports careers. Systems of characteristic features to explain the quality of life and life orientation were also searched for – the agglomerations method allowed indicating the distinctness of the BJJ and the judo groups in terms of the length of their sports careers.
Based on the conducted logistic regression analysis, the likelihood of high or low quality of life and of life orientation and optimism in both groups of athletes has been identified, and differences consistent with previous observations have been indicated.
Conclusions
The subjects involved in combat sports significantly differ from those who do not practice sports in terms of education, social status, work situation and health assessment. The presence of high or low life satisfaction differentiates the compared groups.
Background: In combat sports, successful competition and training require comprehensive motor fitness. The aim of this study was to diagnose the level of physical fitness and to determine the level ...of differences between athletes of combat sports characterized by stand-up fighting, such as Muay Thai; and ground fighting, such as Brazilian jiu-jitsu. Methods: The study examined and compared 30 participants divided into two equal groups: Muay Thai athletes (n = 15; age: 24.24 ± 3.24; body height: 174.91 ± 5.19; body weight: 77.56 ± 7.3), and Brazilian jiu-jitsu (BJJ) (n = 15; age: 22.82 ± 1.81; body height: 175.72 ± 7.03; body weight: 77.11 ± 8.12). Basic characteristics of the somatic build were measured. Selected manifestations of the motor potential of motor skills were also evaluated using selected tests from the EUROFIT test battery, the International Test of Physical Fitness, and computer tests of coordination skills. Relative strength and maximal anaerobic work (MAW) indices were calculated. The strength of the relationship between the effect of motor fitness and training experience was also assessed. Results: The athletes of both groups (Muay Thai and BJJ) presented similar levels of basic characteristics of the somatic build. Motor fitness in the tested groups showed significant differences between the athletes of these sports in static strength (p = 0.010), relative strength (p = 0.006), arm muscle strength in pull-ups (p = 0.035), and functional strength in bent arm hanging (p = 0.023). Higher levels of these components of motor fitness were found for the athletes in the BJJ athletes. In the Muay Thai group, significant very high strength of association was found between training experience and five strength tests. Furthermore, a significantly high strength of association was found in two tests. In the BJJ group, significant relationships with very high correlation were found between the variables in five strength tests. Conclusions: Brazilian jiu-jitsu athletes performed better in strength tests (static strength, relative strength, shoulder girdle strength, functional strength). High correlations between the training load and the level of physical fitness were found in flexibility and strength tests in BJJ athletes and most strength tests in Muay Thai athletes.
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