소리-반응시간이 육상 단거리 선수의 경기력 관련 체력 요인에 미치는 영향 = The Effect of Sound-Reaction Time on Performance-Related Physical Factors in Sprinters

다국어 초록 (Multilingual Abstract)

The purpose of this study was to analyze the differences in physical fitness, anaerobic power, and isokinetic muscle function according to sound-reaction time in male sprinters. Fifty male sprinters participated in this experiment were classified into three groups as follows: the top 20% (T20, n=10), middle 60% (M60, n=10), and bottom 20% (B20, n=10) sound-reaction time groups. Anthropometric measurement, body composition, muscular endurance, quickness, flexibility, anaerobic power, isokinetic muscle function were measured, and all data were analyzed for one-way ANOVA. As a result of this study, The T20 group showed significantly higher scores in the standing long jump (p =.001) and vertical jump (p =.035) compared to the other groups. Anaerobic peak power was significantly higher in the T20 group than the B20 group (p =.027). In the isokinetic knee muscular functions (180°/sec), the knee left extensor (p =.003), knee right flexor (p =.011) were significantly higher in the T20 group compared to B20 group. In conclusion, our findings suggested scientific evidences that the sound-reaction time could affect the standing long jump, vertical jump, anaerobic peak power, and isokinetic muscle function in sprinters as well as it might be used as a predictor of sprinter performance on track and field.