Effect of physical load on handgun shooting accuracy

Název: Vliv fyzické zátěže na přesnost střelby z ruční zbraně. Cíle: Cílem této práce je zjistit a porovnat vliv fyzické zátěže (formou člunkového běhu na hranici 85 % SF max.) na přesnost střelby z krátké střelné zbraně. Metody: Jednalo se o experimentální studii s vnitro-subjektovým designem. Třicet randomizovaně rozdělených policistů ve věku 35,9 let (SD=4,5) provedlo 5 výstřelů z pistole Glock 17 (gen. 3) do 5 vteřin ve stabilním postoji bez opory před fyzickým zatížením a po fyzickém zatížení (člunkový běh na úseku 10 m v čase do dovršení 85 % SF max.) do pevně umístěného terče ve vzdálenosti 8 metrů. Porovnání přesnosti střelby od středního bodu zásahu mezi intervencemi (střelba před a po fyzickém zatížení) bylo provedeno pomocí párového T-testu. Hladina statistické významnosti byla stanovena na hodnotu p ≥ 0,05. K určení velikosti síly efektu bylo použito Cohenovo d. Výsledky: Na základě párového T-testu byl zjištěn statisticky signifikantní rozdíl v přesnosti střelby od středního bodu zásahu bez a po fyzickém zatížení (p = 0,007, d = 0,498). Za věcně významné považujeme také zhoršení přesnosti střelby po fyzické zátěži o 9 mm od středního bodu zásahu, což je 21,78 %. Klíčová slova: Glock, pistole, přesnost střelby, SF max., stres, střelecký postoj, terčTitle: Effect of physical load on handgun shooting accuracy. Objective: The aim of this work is to detect and compare the effects of physical activity (in the form of a shuttle run at the limit of 85% SF max.) on the shooting accuracy from a short firearm. Methods: This was an experimental study with an intra-subject design. Thirty randomly assigned police officers at age 35.9 years (SD = 4.5) made 5 shots from a Glock 17 pistol (gen. 3) within 5 seconds in a stable position without support before and after physical activity (shuttle run on length10 m in time until the completion of 85% SF max.) to a fixed target at a distance of 8 meters. Comparison of shooting accuracy from the middle point of impact between interventions (shooting before and after physical activity) was performed by using a paired T-test. The level of statistical significance was set at p ≥ 0.05. Cohen's d was used to determine the magnitude of the strength of the effects. Results: Based on the paired T-test, a statistically significant difference was found in the accuracy of shooting from the middle point of impact without and after physical activity (p = 0.007, d = 0.498). We also consider the deterioration of shooting accuracy after physical exertion by 9 mm from the middle point of impact, which is 21.78%, to be factually...Technické a úpolové sportyFakulta tělesné výchovy a sportuFaculty of Physical Education and Spor

The influence of physical activity on stroke efficiency

Název práce: Vliv tělesné zátěže na účinnost úderu. Cíl práce: Cílem této práce je zjistit a porovnat sílu úderu po tělesné zátěži u vybrané skupiny policistů při provedení přímého úderu pěstí do zařízení Kistler 5606. Skupina deseti testovaných subjektů bude záměrně tvořena z řad policistů pořádkové služby Policie České republiky. Metody: Bude použita empiricko-teoretická práce observačního charakteru. Síla úderu bude měřena na úderovém siloměru, který je majetkem FTVS UK Praha. Pro zpracování konečných dat bude na základě věcné významnosti aplikována metoda komparace průměrů dosažených hodnot. Výsledek: Vzhledem k naměřeným údajům při výzkumu a následném zpracování mohu uvést, že na základě věcné významnosti, síla prvního úderu měřená před fyzickou zátěží je ve většině případů větší než po zátěži samotné. Tento závěr je do značné míry ovlivněn trénovaností zkoumaného subjektu a jeho technickými dovednostmi. Výzkum potvrdil můj předpoklad, že pokud by subjekt pronásledoval pachatele a po překonání určité vzdálenosti se utkali v pěstním boji, bude subjekt schopen provést údery s obdobnou razancí jako před pronásledováním. V tomto výsledku bylo bráno na zřetel i fyzické oslabení pachatele, který absolvoval obdobnou fyzickou zátěž jako pronásledovatel. Klíčová slova:Úder, zátěž, dráha, účinnost,...1 Abstract Title: Effect of physical activity on stroke efficiency. Objective: The aim of this work is to determine and compare the effectiveness of a stroke after a physical activity on a selected group of police officers in the execution of direct punches in to device Kistler 5606. A group of ten test subjects will intentionallybe formed from police officers of Police Disciplinary Service of The Czech Republic. Methodology:Empirical-theoretical work of observational nature will be use. Impact force will be measured on the Impact load cell, property of Charles University in Prague. For processing the final data I will apply the method of comparison of average values achieved. Conclusion: As the researched data and subsequent based on factual events process showed, the strength of the first impact measured before exercise is in most cases greater than that after exercise. Fitness of the examined subject and its technical skills play an important role in the variety of results. This research thus led me to the conclusion that if the subject pursues an offender and after covering certain distance challenges him in a fight, the subject will be able to perform strokes with similar vigour as before the pursuit. Physical fatigue of the offender, who had undergone equivalent physical stress as his pursuer, is also...Technické a úpolové sportyFaculty of Physical Education and SportFakulta tělesné výchovy a sport

The influence of physical activity on stroke efficiency

1 Abstract Title: Effect of physical activity on stroke efficiency. Objective: The aim of this work is to determine and compare the effectiveness of a stroke after a physical activity on a selected group of police officers in the execution of direct punches in to device Kistler 5606. A group of ten test subjects will intentionallybe formed from police officers of Police Disciplinary Service of The Czech Republic. Methodology:Empirical-theoretical work of observational nature will be use. Impact force will be measured on the Impact load cell, property of Charles University in Prague. For processing the final data I will apply the method of comparison of average values achieved. Conclusion: As the researched data and subsequent based on factual events process showed, the strength of the first impact measured before exercise is in most cases greater than that after exercise. Fitness of the examined subject and its technical skills play an important role in the variety of results. This research thus led me to the conclusion that if the subject pursues an offender and after covering certain distance challenges him in a fight, the subject will be able to perform strokes with similar vigour as before the pursuit. Physical fatigue of the offender, who had undergone equivalent physical stress as his pursuer, is also..

Effect of physical load on handgun shooting accuracy

Title: Effect of physical load on handgun shooting accuracy. Objective: The aim of this work is to detect and compare the effects of physical activity (in the form of a shuttle run at the limit of 85% SF max.) on the shooting accuracy from a short firearm. Methods: This was an experimental study with an intra-subject design. Thirty randomly assigned police officers at age 35.9 years (SD = 4.5) made 5 shots from a Glock 17 pistol (gen. 3) within 5 seconds in a stable position without support before and after physical activity (shuttle run on length10 m in time until the completion of 85% SF max.) to a fixed target at a distance of 8 meters. Comparison of shooting accuracy from the middle point of impact between interventions (shooting before and after physical activity) was performed by using a paired T-test. The level of statistical significance was set at p ≥ 0.05. Cohen's d was used to determine the magnitude of the strength of the effects. Results: Based on the paired T-test, a statistically significant difference was found in the accuracy of shooting from the middle point of impact without and after physical activity (p = 0.007, d = 0.498). We also consider the deterioration of shooting accuracy after physical exertion by 9 mm from the middle point of impact, which is 21.78%, to be factually..

Effect of physical load on handgun shooting accuracy

Title: Effect of physical load on handgun shooting accuracy. Objective: The aim of this work is to detect and compare the effects of physical activity (in the form of a shuttle run at the limit of 85% SF max.) on the shooting accuracy from a short firearm. Methods: This was an experimental study with an intra-subject design. Thirty randomly assigned police officers at age 35.9 years (SD = 4.5) made 5 shots from a Glock 17 pistol (gen. 3) within 5 seconds in a stable position without support before and after physical activity (shuttle run on length10 m in time until the completion of 85% SF max.) to a fixed target at a distance of 8 meters. Comparison of shooting accuracy from the middle point of impact between interventions (shooting before and after physical activity) was performed by using a paired T-test. The level of statistical significance was set at p ≥ 0.05. Cohen's d was used to determine the magnitude of the strength of the effects. Results: Based on the paired T-test, a statistically significant difference was found in the accuracy of shooting from the middle point of impact without and after physical activity (p = 0.007, d = 0.498). We also consider the deterioration of shooting accuracy after physical exertion by 9 mm from the middle point of impact, which is 21.78%, to be factually..