수직점프와 악력이 국가대표 역도선수의 경기력 예측에 미치는 효과

Abstract

The Purpose of this study was to investigate whether hand grip strength and vertical jump are critical indicators to predict performance of Korea national weightlifters. The Subjects for this study were 29 Korea national weightlifters. The Cajori 5-step method was applied and all participants were divided into 4 groups according to grip strength and vertical jump capacity: High grip strength and high vertical jump group (HGHV, n=10), High grip strength and low vertical jump group (HGLV, n=8), Low grip strength and high vertical jump group (LGHV, n=7), Low grip strength and low vertical jump group (LGLV, n=4). Significant differences between groups were determined with one-way repeated ANOVA. As the result of this study, general fitness such as agility, flexibility, and balance did not differ significantly between groups, but the maximum strength of squat and back strength was significantly higher in HGHV and LGHV than in other groups. Isokinetic knee extension and flexion strength was higher in HGHV compared to groups with low vertical jump record. But isokinetic trunk extension and flexion functions were not significantly different between groups. Our findings suggest new evidence that grip strength and vertical jump capability might be important factors in predicting the performance of weightlifters, and vertical jump is most closely related.