Introduction: The goal of our study was to identify and compare impact of specific dual focus of concen tration known in Goju - ryu school as a system of KZR (closed hands kata) - heishu, conce ntration inside the body versus KOR (open hands kata) - kaishu, conce ntration outside of the body . Method: . St udysample consisted of Karate Dojo Pivovarník karateka from Hanušovce nad Topľou, Slovak republic (n=7, 6 m en and 1 woman), all of them were holders of at least . 1 st . Dan maste r grade, they were able to practice in dual focus. We h ave compared the trainings performed by both system s KZR vs. KOR while respecting relatively identical co nditions. At the same time we observed physiologi cal, biochemical and somatic indicators. P articipants completed a questionnaire , consent form and filled out personality questionna ire . The data were evaluated with statistical programs MS Excel, SPSS Statistics, bio chemical results were obtained in laboratory Synlab Sl ovakia s.r.o, Prešov and the data were ca lculated by Dorste, Planta 14 . To determine the significance of difference s at entrances and exits KZR vs. KOR we used the Mann - Whitne U – test and Wilco xon test . S tatis tical significance was set at (p < 0. 01 , p < 0.05). Result: We assumed that the dual concentration will not ca use any significant differences from training KZR com pare to KOR. However, that was not confirmed. We have detected several statistically significant physiological biochemical and somatic differences. Summary: Our results po int to the possibility of efficiency gains and prediction in g training (performance, i ntensity etc. ). Nevertheless, this pilot study does not allow the results to be generalized for relatively small sample size , and the number of such studies, in spite of thisour study points out the high potential and possible future objectification.
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