• Title/Summary/Keyword: 체위 떨림

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Development of a Shooting Training System using an Accelerometer (가속도 센서를 이용한 사격 훈련 시스템 개발)

  • Joo, Hyo-Sung;Woo, Min-Jung;Woo, Ji-Hwan
    • Journal of the Korea Convergence Society
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    • v.12 no.7
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    • pp.263-271
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    • 2021
  • Optoelectronic shooting training systems are used in shooting training sites to improve the accuracy of shooting by tracking the trajectories of gun movements. However, optoelectronic-based systems have limitations in terms of cost, complexity of installation, and the risk that electronic targets may be broken. In this study, we developed and verified a shooting training system that measures postural tremors using a low-cost accelerometer. The acceleration sensor module was designed to be attached to the air cylinder of a gun. Postural tremors were evaluated based on amplitude, frequency, and spatial pattern index, which were computed using acceleration data. The postural tremor indices between the accelerometer and optoelectronic-based system were highly correlated (left-right and up-down directions: r = 0.76 and r = 0.70, respectively). We validated the developed shooting training system using an independent two-sample t-test, which identified a significant difference (p < 0.05) in the calculated postural tremor index according to the athlete's shooting score (i.e., best and worst shots).