24주간의 weight training과 plyometric training이 남자고교생의 체격, 신체조성과 체력에 미치는 영향

Abstract

The purpose of this study was to assess effects of weight training and plyometric training on the physique, body composition and physical fitness of male high school. The forty-five students of third grade were divided into three groups. WTG did weight training 60~70%1RM for about one and a half hours, four times a week for 24 weeks. PTG exercised plyometric training 60~70%RM(the height of the huddle is 55 to 85 cm and that of the box size is 40 to 80 cm. The results of this study was as follows: 1. When it comes to physique, all three groups didn`t show any significant growth in their height. WTG and PTG, however, noticeably lost their weight, %fat, and BMI. As for their chest girth, WTG showed greater growth than PTG. In case of physical fitness, both WTG and PTG improved their average in power, agility and muscular endurance. In particular, WTG got outstanding results in handball throw, side step and 10 m shuttle run, and pull ups, which are the barometers of power, agility and muscular endurance respectively. As mentioned above, the experiment proved that weight training had more positive effect on students` physique and fitness improvement than plyometric training.