무용 숙련성과 템포에 따른 타이밍 제어 특성

초록

Purpose: The purpose of this study was to investigate timing control characteristics in synchronization-continuation task that appear according to dance expertise and tempo. Methods: The participants were divided into 12 professional dancers who are active in domestic professional dance troupes and 12 non-dancers. The task was to synchronize finger tapping according to auditory stimuli provided periodically under three tempo conditions (60, 120, 180 bpm) and than continue tapping at the reference tempo without auditory stimuli. The timing accuracy of synchronization task was calculated as the absolute error of asynchrony, and timing variability was calculated as the standard deviation of asynchrony. The difference between the inter-tap interval (ITI) and the target time was calculated as timing accuracy, and the standard deviation of ITI was calculated as timing variability in the continuous task. Results: In the synchronization task, the timing accuracy was highest in the 120bpm condition, and the timing variability of the experts was lower in the 60 and 120bpm compared to the novice. Timing variability in the continuation task was lower in the skilled group than in the inexperienced group, and higher than in other tempo conditions at 60bpm. Conclusion: Through these research results, dancers are specialized in creating and maintaining regular movements without auditory stimulation as well as consistently moving in accordance with periodic rhythms, and long-term dance training experience has a positive effect on promoting these abilities.

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