Fast Fourier transform analysis as a new tool for Olympic rifle coaches

The aim of this study was to examine the possibility of using data collected with an electronic training system to determine the influence of a shooter’s heartbeat on shooting precision. Shooting sessions of a rifle in prone position were studied with the use of an electronic training system. As a case study, results of an experienced shooter were analyzed. Fast Fourier transform was applied to raw data extracted from the system and then results were interpreted. The spectrum obtained revealed a wide peak at the frequency f = 2.6 Hz that was considered as the second harmonics of the average frequency corresponding to the heartbeat decreasing down to 69 beats/min when releasing a shot. The session finished with a very modest score of 611.3 points. When a small intentional change in the shooter’s equipment (a sling position) was introduced, the spectrum obtained did not reveal any peaks and the shooter reached a much better score of 621.8 points. The use of fast Fourier transform analysis is proposed as a new tool for Olympic rifle shooters and coaches. This new tool does not require any complicated procedures and provides quantitative information on the influence of a heartbeat on the stability of a shooter’s aim.
© Copyright 2017 Proceedings of the Institution of Mechanical Engineers, Part P: Journal of Sports Engineering and Technology . Sage Publications. All rights reserved.

Subjects: shooting rifle shooting feedback measuring and information system mathematic-logical model training means
Notations: technical and natural sciences technical sports
DOI: 10.1177/1754337116639482
Published in: Proceedings of the Institution of Mechanical Engineers, Part P: Journal of Sports Engineering and Technology
Published: 2017
Volume: 231
Issue: 1
Pages: 63-67
Document types: article
Language: English
Level: advanced