Features of the Correlation Relationship Between External Stressful Stimulus and Adaptive Changes in the Body of Mixed Martial Arts Athletes

Abstract

Topicality. 

One of the most important aspects in the field of sports is determining the appropriateness of the loads used for the adaptation capabilities of the athletes` body. This is a key element in both the training and competition procedures, which requires immediate correction and the development of effective training programs with long-term prediction of results, not only in mixed martial arts (MMA), but in all other sports as well. The purpose of the research was to study the peculiarities of the correlation between the parameters of the projectile weight and adaptive changes in the body of mixed martial arts athletes experienced special strength training. The research methods. 50 MMA fighters aged 19±0.7 took part in the study. Two research groups have been formed. The representatives of the examined groups used experimental regimens of training sessions during 3 months of strength training. Correlation analysis was carried out between parameters of the projectile weight (m) and, biochemical blood indices, anthropometry, bioimpedancemetry, measuring maximal strength (MSt) of athletes. The results. The athletes of the first group at all stages of the study experienced a constant strong positive relationship (r>0.70) between the indicator of the projectile weight (m=56-59% of 1 RM) during training loads (R_a=0.56) of type A and the development of the maximum strength of leg muscles during leg press exercise (r=0.73), as well as the basal level of lactate dehydrogenase enzyme concentration in blood serum (r=0.72). The analysis of the research results obtained after 3 months of special strength training by the athletes of the second group using C-type training loads (R_a=0.74) indicated that the number of strong correlations has increased 9 times compared to the data found at the beginning of the experiment. It has been determined that the largest change in the level of correlations from moderate at the beginning of the study (on average r=0.57) to high after 3 months of training (on average r=0.87) occurred between the projectile weight indicator and the results of the control testing the maximum muscle strength (chest muscles, shoulder and hip muscles) during control exercises. Findings. It has been established that only the second group of athletes that experienced special training loads (TL) of high intensity sessions C (R_a=0.74), the correlations increased during 3 months of training, which indicated the distinct long-term adaptation.