A SHOOTER’S POSTURE IN HANDLING A RIFLE WHILE AIMING AT A TARGET IN STANDING POSITION

Abstract

The purpose of the study is to determine a good posture of an upper limb segment in handling a rifle while aiming at a target in standing position. Ten male subjects participated in the study. The experiment was done using Vicon 1.5.2 motion analysis system and seven infra-red cameras. Data were filtered using Functional Data Analysis (FDA) technique. Results showed that mean flexion angle for all the subjects are 52 ±7 deg and 32 ±9 deg for right and left shoulder, respectively. Mean elbow angle is 118 ±8 deg on the right and 103 ±10 deg on the left. Ulnar deviation for wrist angle is the smallest with 21 ±9 deg for the right hand side and 47 ±11 deg for the left hand side. It is concluded that the shooting posture of the upper limb segment of a shooter is consistent within all the subjects.