레지스탕스 트레이닝에서 고속도 운동이 근횡단 면적 및 운동속도에 미치는 영향 = Effect of High-spped Resistance Training on Muscle Cross-Sectional Area and Speed of Movement

다국어 초록 (Multilingual Abstract)

A conducted to determine 1) the effect of high-velocity mowement in resistance training with a constant load on the velocity of movement after training and 2) the differences in the effect on muscle hypertrophy according to training velocity. Fourteen of the total subjects (male ; n=10, female ; n=7) were placed in the experimental group and agreed to participate in 8 weeks of training sessions(4 times a week). Five of the 17 subjects were in control a group before the training session. Subjects perfrmed elbow extension and flexion exercise using 50% of one repetitions and 30s of rest was taken between the sets. The subjects in the experimental group trained their arms using two different protocols ; one was high-velocity movement performed as rapidly as possibl(Type R), the other was low-velocity movement performed at a constant and slow velocity(Type R), the other was low-velocity movement performed at a constant and slow velocity(Type R), the other was low-velocity movement performed at a constant and slow velocity(Type S). Isokinetic torque in elbow flexion was measured at angular velocities of 60, 180, 300 deg/s, respectively, during elbow flexion performed under different constant loads of 0, 30, 50% 1 RM, and the muscle cross-sectional area(CSA) of the elbow flexor was determined before and after training. It was found that Type R did not increased isokinetic torque at 300 deg/s significantly after training. However, the increase in angular velocity of elbow flexion in Type R exercise tended to be higher than in Type S exercise. The increased in CSA [Type S ; 11.2%, Type R ; 14.2%] was significantly higher in Type R exercise(p＜.05). These results suggest that high-velocity movement with a constant load in resistance training might increase the angular velocity of movement in the same mode, but might not produce a change in isokinetic strength, which involves a different mode of muscle contraction. Muscle hypertrophy would be induced to a greater extent by. high-velocity movement than by low-velocity movement in resistance training with a constant load.

목차 (Table of Contents)

• Ⅰ. 서론
• Ⅱ. 연구방법
• Ⅲ. 연구결과
• Ⅳ. 고찰
• Ⅴ. 결론
• 참고문헌
• ABSTRACT