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EN
Background. Today’s sport training resembles balancing on the edge between achieving high effort capacity and overtraining. Such overtraining may result in injuries of athletes’ motor system. The aim of the study was to characterize possible injuries occurring in athletes who practice short runs and to describe how these injuries are treated. Materials and methods. The study comprised 113 professional athletes (101 women and 53 men) practicing short runs. Mean age of an athlete was 22,3. The data were collected by means of the questionnaire designed by the authors for this study. Statistical data analysis was performed. Results. Investigation showed that as many as the 87,4% of respondents had some injury. Most of them were injuries of muscles, tendons and ligaments. The athletes often mentioned inappropriate warming up and too burdensome exercises as a direct cause of injury. Most of the respondents indicated a rest from training as the best treatment. A relation was observed between time devoted to weekly practice and the number of injuries (p = 0,82) as well as training experience and the number of injuries (p = 0,64) in the group of injured athletes. Conclusions. Athletics is a traumatic sport discipline. Injuries were most frequently located in lower limbs. The following elements are crucial in prevention of injuries: appropriate warming-up and appropriate intensity of training.
EN
Objective. This study aimed to investigate the acute effects of a simulated Brazilian jiu-jitsu match,practiced by athletes with disabilities, on the serum levels of hormonal and lactate markers. Methods. Five male athletes were included (mean and SD: age 38.5 ± 4.2 years; height 1.68 ± 0.05 cm; body mass 89.4 ± 5.8 kg; BMI 31.6 ± 3.7 kg.m2); participants I and II were professional athletes with world titles. The results were individually analyzed, which constitutes a multiple case study under the Ethics Committee registration no. 2.997.241. Blood samples were collected before and immediately after the simulated match session. The data analyzed were: lactate, cortisol, testosterone, and body temperature.Results. Regarding testosterone values, an increase was observed in all participants after the match (mean and SD: 36.4 ± 6.8 pre-match and 45.9 ± 8.1 post-match), with a significance of p = 0.006 between moments. For cortisol, the gross values of all participants decreased after the match (mean and SD: 157.6 ± 15.4 pre-match and 121.8 ± 14.7 post-match), with a significant difference between moments (p=0.02). The lactate values also increased in all participants (mean and SD: 2.52 ± 0.05 pre-match and 11.6 ± 0.8 post- match), with a significant difference between moments (p=0.0004). In addition, no correlations were found between hormonal concentrations and age (Testosterone x Age, p-value=0.7600; Cortisol x Age, p-value=0.600). Conclusions. Different alterations in hormonal and metabolic parameters represent responses to acute physical exercise. From these data, it is possible to evaluate the training load implemented and suggest periodization and recovery techniques according to the individual responses.
PL
Cel. Celem pracy było zbadanie ostrego wpływu symulowanej walki brazylijskiego jiu-jitsu, uprawianego przez sportowców niepełnosprawnych, na stężenie w surowicy krwi markerów hormonalnych i mleczanowych. Metody. W badaniu brało udział pięciu mężczyzn (średnia i SD: wiek 38,5 ± 4,2 lat; wzrost 1,68 ± 0,05 cm; masa ciała 89,4 ± 5,8 kg; BMI 31,6 ± 3,7 kg.m2), przy czym uczestnicy I i II byli zawodowymi sportowcami z tytułami mistrzów świata. Wyniki analizowano indywidualnie, co stanowi studium wielu przypadków. Próbki krwi pobierano przed i bezpośrednio po symulowanej sesji walki. Analizowane dane to: mleczan, kortyzol, testosteron i temperatura ciała. Wyniki. Jeśli chodzi o wartości testosteronu, zaobserwowano wzrost u wszystkich uczestników po walce (średnia i SD: 36,4 ± 6,8 przed walką i 45,9 ± 8,1 po walce), z istotnością statystyczną p = 0,006. W przypadku kortyzolu, wartości brutto wszystkich uczestników zmniejszyły się po walce (średnia i SD: 157,6 ± 15,4 przed walką i 121,8 ± 14,7 po walce), z istotną różnicą pomiędzy momentami (p=0,02). Wartości mleczanu również wzrosły u wszystkich uczestników (średnia i SD: 2,52 ± 0,05 przed walką i 11,6 ± 0,8 po walce), z istotną różnicą pomiędzy momentami (p=0,0004). Ponadto nie stwierdzono korelacji pomiędzy stężeniami hormonów a wiekiem (Testosteron x Wiek, p-value=0,7600; Kortyzol x Wiek, p-value=0,600). Wnioski. Różne zmiany w parametrach hormonalnych i metabolicznych są odpowiedzią na ostry wysiłek fizyczny. Na podstawie tych danych można ocenić obciążenie treningowe oraz zaproponować techniki periodyzacji i regeneracji w zależności od indywidualnych reakcji.
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