케틀벨 트레이닝이 중학교 남자 축구선수들의 신체조성, 하지 등속성 근력 및 무산소성 파워에 미치는 영향

Abstract

The purpose of this research is to determine the effects of kettlebell training on body composition, lower extremity isokinetic muscle function and anaerobic power of male middle school soccer players. In the experiment, the subjects exercised with 8kg kettlebells three times a week over the period of eight weeks. The number of sets and reps increased every two weeks. The results of this research is as follows: 1) After eight weeks of kettlebell training, participants’ body fat was meaningfully reduced (p.05) and their fat-free mass meaningfully increased (p.01). 2) After eight weeks of kettlebell training, the strength of extensor muscle meaningfully improved on the left side while that of flexor muscle showed a meaningful increase on both sides in lower extremity isokinetic muscle function test at 180°/sec (p.05, p.01). In a muscular endurance test at 240°/sec, only the flexor muscle meaningfully improved on both sides (p.05, p.001). 3) After eight weeks of kettlebell training, anaerobic power capacity measured by a Wingate test meaningfully improved only at the minimum power(p.05). In conclusion, the eight weeks of kettlebell training given to the male middle school soccer player is considered to have positive effects on their body composition, lower extremity isokinetic muscle function and anaerobic power capacity. That is attributable to the fact that repeated weight lifting with kettlebells reduced body fat while increasing muscle mass, thereby improving the strength and anaerobic power of active muscle. It indicates that repeated kettlebell exercise can make an effective training program for ball game players such as soccer players for whom lower extremity muscle strength is critical.