Dr. Hab., Professor F.I. Sobyanin¹
Postgraduate A.A. Poidunov¹
Doctor PhD, Professor M.O. Daupaev²
PhD V.A. Malakhov^1
1Belgorod State National Research University, Belgorod
²University of Innovation and Technology of Western Kazakhstan, Kazakhstan, Uralsk

Objective of the study was to rate and analyze the pain tolerance versus competitive progress in junior kickboxing sport.
Methods and structure of the study. We used special research literature analyses, synthesis and analyses of the competitive records and training process observations as a basis for the tests. The pain tolerance of the 6-12 year-old sample (n = 40) was tested by I.I. Kuznetsov test system with a blood pressure gauge. The system air pump exerts pressure on the subject's skin till refusal, with the top pressure fixed instantly n mm Hg. The pain tolerance was also rated by the Verbal Pain Rating Scale and Modified Facial Pain Rating Scale in points [3]. The pain tolerance rating tests were complemented by the competitive records analyses and practical observations. Individual fight styles with the pain tolerance elements were rated as follows: refusal to fight was scored by 0 points; uncontrolled pre-fight fever scored by 1 point; pre-fight fever followed by shaky confidence scored by 2 points; stable behavioral self-control scored by 3 points; and courage, initiative and full confidence in the fight scored by 4 points. The study was run at Patriot Sports Club in Belgorod and University of Innovation and Technology of Western Kazakhstan in Uralsk. The test data were collected and processed in 2018-2020 with conversion into non-parametric values, followed by a Spearman rank correlation analysis.
Results and conclusions. The study found a highest correlation between the individual pain tolerance test rates obtained by the Kuznetsov skin pain test and competitive fight style (rs = 0.875). The pain tolerance versus fight style correlations for the Verbal Pain Rating Scale and Modified Facial Pain Rating Scale tests were somewhat lower (rs = - 0.783 and rs = - 0.756, respectively); although still indicative of the meaningful correlation between the pain tolerance and competitive success in junior kickboxing sport. The arithmetic means and standard deviations give the grounds to rate the junior sample pain tolerance as mean. The study data and analyses demonstrate the pain tolerance being in strong correlation with the competitive fight style. The findings and study data are recommended for application in the theoretical and practical trainings and competitions in junior kickboxing.

Keywords: physical pain, pain tolerance, bouts, kickboxing, junior athletes

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