The Korean Journal of Physical Education (한국체육학회지)

Korean Alliance for Health: Physical Education: Recreation:and Dance (한국체육학회)
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The effect of X-Factor in club head speed

X-Factor가 드라이브샷의 스피드에 주는 영향

Chang, Jae-Kwan
장재관

  • Published : 2005.07.30
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Abstract

The purpose of this study was to investigate the effect of X-Factor in club head speed. The tenn X-Factor means the relative rotation of shoulders with respect to hips during the golf swing. By using the swing mate(model G640), the club head speeds of 3 male professional golfers and 3 male amateur golfers were measured. Six JVC video cameras(GR-HD1KR) and the x, y, z; coordinates of 20 points defining a fourteen segment model of the human body were used for further analysis. After smoothing the raw data with a second order Butterworth low pass filter the X-Factors of the subjects were calculated. The results can be summarized as follows. The standard deviations of the amateurs' average club head speeds were higher than the professionals'. This means that the professional golfers had more consistency in drive swing skill than the amateurs'. As the club head speeds were gradually increased, the professional golfers' average X-Factor values and X-Factor variations were larger than the amateurs'. The X-Factor had meaningful effect only for the amateurs' with beginner levels.

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References

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