Abstract: The purpose of the study is to investigate the response characteristics of pistol shooter who stands to continuously shoot without support. A three-dimensional motion capture system and a plantar pressure test system are used to get the shooter-pistol motion trajectory and plantar pressure. The results show that the pistol motionis closely related with the foot force/pressure center position during the continuous shooting.A shooter should go through the passive and active responses when he fires in standing posture without support. A shooter takes 250 ms (SD=62.9 ms) to make an active response. Weak postural control occurrs with the increase in consecutive shots, which results in reduced gun control ability.The analysis results show that the testing systems can be used to analyze the response characteristics of shooter, provide a new way to study the discipline of human-pistol motion and develop the human-pistol dynamics model.

Key words: ordnance science and technology, pistol, continuous shooting, response characteristic, motion capture system, plantar pressure test system