A comparison of the stability of standing shooting stance in expert and novice mountain infantry shooters

• Authors: Mariusz Ratajczyk , Arkadiusz Homańczuk , Sławomir Pacześny , Małgorzata Sobera

Title variants

PL

Porównanie stabilności postawy strzeleckiej stojąc doświadczonych i początkujących strzelców piechoty górskiej

Abstracts

PL

Celem pracy jest porównanie jakości procesu kontroli równowagi w postawie strzeleckiej stojąc doświadczonych i początkujących strzelców piechoty górskiej. Kontrolę równowagi oceniono za pomocą platform sił AccuSway (AMTI, USA) pod względem wartości miar stabilności obliczonych na podstawie przebiegu punktu przyłożenia wypadkowej siły reakcji na podłoże – COP (ang. Center of Pressure), w tym: zakresu przemieszczeń w kierunku przyśrodkowo-bocznym (RANGE(ML)) i przednio-tylnym (RANGE(AP)), odchylenia standardowego przemieszczeń COP w kierunku przyśrodkowo-bocznym (SD(ML)) i przednio-tylnym (SD(AP)), pola elipsy przemieszczeń COP (ELLIPSE), średniej prędkości przemieszczeń COP (AVG VEL) oraz długości ścieżki COP (LENGTH). Uczestnicy (doświadczeni strzelcy, N=10, początkujący strzelcy, N=15) przyjęli taktyczną postawę strzelecką stojąc w umundurowaniu polowym z karabinkiem Beryl wz. 96 na platformach sił (po jednej dla każdej kończyny dolnej) przez okres 10 sekund, z częstotliwością próbkowania ustawioną na 100Hz. Analiza statystyczna przeprowadzona za pomocą testu U Manna-Whitneya wykazała istotną różnicę pomiędzy badanymi grupami w wartościach wskaźnika pola elipsy (ELLIPSE) oraz średniej prędkości przemieszczeń COP (AVG VEL) jedynie dla dominującej kończyny dolnej. Stwierdzono, że doświadczeni strzelcy charakteryzują się większą stabilnością przyjętej postawy strzeleckiej niż początkujący strzelcy. W pracy przedstawiono implikacje dotyczące biomechanicznych aspektów stabilności postawy strzeleckiej stojąc.

EN

This study compares balance control in standing shooting stance in expert and novice military shooters among mountain infantry soldiers. Balance control was assessed using AccuSway (AMTI, USA) force platforms in terms of the range of the centre of pressure (COP) displacements in the mediolateral (RANGE(ML)) and anteroposterior direction (RANGE(AP)), the standard deviation of COP displacements in the mediolateral (SD(ML)) and anteroposterior direction (SD(AP)), the sway area of COP displacements (ELLIPSE), the average velocity of COP displacements (AVG VEL) and the COP path length (LENGTH). The participants (expert shooters, N=10; novice shooters, N=15) adopted tactical standing shooting stance wearing the field uniform, with a rifle on force platforms (one for each lower limb), over a period of 10 seconds, with sampling frequency of 100Hz. The statistical analysis using the Mann-Whitney U test revealed a significant difference between the studied groups, taking into account the ELLIPSE and the AVG VEL variables values for the dominant leg only. It was concluded that the expert shooters showed better stability than novice shooters. This study presents implications regarding biomechanical aspects of standing shooting stance stability.

Keywords

EN

military; shooting; balance control

PL

wojsko; strzelectwo; kontrola równowagi

• Publisher: Akademia Wojsk Lądowych imienia generała Tadeusza Kościuszki
• Journal: Scientific Journal of the Military University of Land Forces
• Year: 2023
• Volume: 55
• Issue: 1(207)
• Pages: 33-42

Dates

published

2023

Contributors

author

Mariusz Ratajczyk

• Shooting Theory and Practice Section, Command Institute, General Tadeusz Kościuszko Military University of Land Forces, Wrocław, Poland

author

Arkadiusz Homańczuk

• Faculty of Physical Education and Sports, Wroclaw University of Health and Sport Sciences, Poland

author

Sławomir Pacześny

• AlphaOne, Kłodzko, Poland

author

Małgorzata Sobera

• Department of Gymnastics, Faculty of Physical Education and Sports, Wroclaw University of Health and Sport Sciences, Poland

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Identifiers

DOI

10.5604/01.3001.0053.4102

Biblioteka Nauki

29521144