The objectivization of evaluation of the dynamics of self-defense instruments

Název: Objektivizace hodnocení dynamiky úderových prostředků sebeobrany Úvod: Údery horní končetinou představují klíčové prostředky pro systém sebeobrany. Doposud nejsou hodnocené jejich mechanické vlastnosti pro širší skupinu úderů bez ochranných prostředků s uplatněním v tréninkové přípravě, v hodnocení rizik zranění, ve forenzní biomechanice a lékařském právu. Cíle: Cílem této práce je sestavit a objektivizovat hodnocení dynamiky širší skupiny úderů horní končetinou pomocí upřesnění velikosti kontaktní plochy a popisu tlumicích vlastností pěny detekční aparatury. Cílem je hodnotit impaktní sílu, pravděpodobnost přesažení prahové hodnoty pro zlomeninu kostní tkáně, impuls, velikost úderových ploch a tlak pro tři techniky úderu, obě pohlaví a dvě úrovně zkušeností. Metody: Práce se skládá ze tří projektů. Dva kvazi experimenty absolvovalo 169 probandů, mužů a žen, úrovně zkušeností začátečník, pokročilý (n = 169, výška 177,8±9,0; hmotnost 81,6±17,8; věk 27,3±8,1) v rámci jednoho období. Probandi byli měřeni na dvou aparaturách (Kistler, Podokam), kde došlo k záznamu časového průběhu impaktní síly úderu a k fotografickému záznamu tří segmentů horní končetiny. Probandi provedli 3 techniky úderu, celkem 15 pohybových akcí a 9 statických simulací. V rámci třetího experimentu došlo k testování tlumicí...Title: The objectivization of evaluation of the dynamics of self-defense instruments Introduction: Strikes by the upper limb are key tools for the self-defense system. So far, mechanical properties have not been evaluated for a wider group of strikes without protective equipment with applications in training, injury risk assessment, forensic biomechanics and medical law. Objectives: The aim of this work is to compile and objectify the evaluation of the dynamics of a wider group of strikes by the upper limb by specifying the size of the contact area and describing the damping properties of the foam of the detection apparatus. The aim is to evaluate the impact force, the probability of exceeding the bone tissue fracture threshold, the impulse, the size of the impact surfaces and the pressure for three impact techniques, both sexes and two experience levels. Methods: The work consists of three projects. Two quasi-experiments were completed by 169 probands, men and women, experience levels beginner, advanced (n = 169, height 177.8±9.0; weight 81.6±17.8; age 27.3±8.1) within one period. Probands were measured on two devices (Kistler, Podokam), where the time, impact force of the blow was recorded and three segments of the upper limb were photographed. Probands performed 3 striking techniques, a total of...Katedra sportovních herDepartment of Sport GamesFakulta tělesné výchovy a sportuFaculty of Physical Education and Spor

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The objectivization of evaluation of the dynamics of self-defense instruments

Title: The objectivization of evaluation of the dynamics of self-defense instruments Introduction: Strikes by the upper limb are key tools for the self-defense system. So far, mechanical properties have not been evaluated for a wider group of strikes without protective equipment with applications in training, injury risk assessment, forensic biomechanics and medical law. Objectives: The aim of this work is to compile and objectify the evaluation of the dynamics of a wider group of strikes by the upper limb by specifying the size of the contact area and describing the damping properties of the foam of the detection apparatus. The aim is to evaluate the impact force, the probability of exceeding the bone tissue fracture threshold, the impulse, the size of the impact surfaces and the pressure for three impact techniques, both sexes and two experience levels. Methods: The work consists of three projects. Two quasi-experiments were completed by 169 probands, men and women, experience levels beginner, advanced (n = 169, height 177.8±9.0; weight 81.6±17.8; age 27.3±8.1) within one period. Probands were measured on two devices (Kistler, Podokam), where the time, impact force of the blow was recorded and three segments of the upper limb were photographed. Probands performed 3 striking techniques, a total of..

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