탄성 스트레칭이 유연성과 등속성 근기능에 미치는 영향

Abstract

The purpose of this study was to examine the acute effects of static, ballistic and no stretching on peak torque(PT), acceleration(AT) and deceleration time(DT), total work(TW), average power(AP) and flexibility of hamstring muscles during isokinetic contractions at three different conditions in one week interval for three weeks. The 16 university students in male( 8) & female( 8)(19.37 ± 0.37 years, 55.75 ± 1.16 kg, 160.37 ± 1.54 cm) performed isokinetic leg extension & flexion maximal voluntary contractions at 60˚/sec & 180˚/sec using biodex system. In the peak torque, ballistic stretching was increased rather than static stretching and non-conducting stretching, but there was no statistically significant difference in static stretching and non-conducting stretching. Acceleration time was not significantly different among the groups. The deceleration time was significantly increased in static stretching. In total work power, ballistic and non-conducting stretch-ing were significantly higher than static stretching. There was significantly difference in the order of ballistic stretching, non-conducting stretching and static stretching in average power. These results suggested that the ballistic stretching exercise would be beneficial rather than static stretching in the warming up step if safely ap-plied for the enhancement of athletic performance.