Publication details

Comparison of aggressiveness level in baseball and Brazilian jiu-jitsu players

Authors

VÍT Michal

Year of publication 2018
Type Conference abstract
MU Faculty or unit

Faculty of Sports Studies

Citation
Description Background and Study Aim The relationship between combat sports and aggression has begun to be focused by some researchers. While Wann & Branscombe [1] consider combat sports (e.g. boxing) as typical examples of aggressive sports, other authors [2–4] assume that training of combat sports could lead to a reduction of aggressiveness among the trainees. Self-report research tool Buss-Perry Aggression Questionnaire (BPAQ) was involved in discovering the difference in aggressivenes level among players of non-combative (baseball) and combative sports (Brazilian jiu-jitsu). Material and Methods The research sample involves N=60 male sportsman from the Czech Republic divided into two subgroups (N=30 baseball players in the age 26.80 ± 4.75 and N=30 Brazilian jiu-jitsu players in the age 26.47 ± 4.92). Descriptive statistics, T-test and size effect evaluated by Cohen´s d were used for the analysis. Results Results showed that there are no statistically significant differences in aggressiveness level between samples A (baseball) and B (Brazilian jiu-jitsu) on the level of statistical significance 0.05 %. According to Cohen´s d interpretation, we can consider the significant difference between A and B samples in the verbal aggression factor (d = -0.38). Conclusions According to BPAQ methodology, there is no statistically significant difference in aggressiveness level of baseball and Brazilian jiu-jitsu players in all four partial factors (physical aggression, verbal aggression, anger, hostility). The size effect is significant in the verbal aggression factor (d= -0.38). An increase of participants number could enhance the validity and reliability of research. We highly recommended continuing research for revealing the relationships between combat systems training and aggressiveness.

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