엘리트 유도 선수들의 장기간 L-carnitine 섭취가 심폐기능과 지질대사 및 피로물질의 관련성 분석
The Study of Correlation on Cardiorespiratory Capacity, Blood Lipids Metabolism and Fatigue Material by Supplementing the L-Carnitine in Elite Judo Athletes
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초록
L-카르니틴 투여가 엘리트 유도 선수들의 운동 수행능력 향상효과에 미치는 영향을 파악하는데 연구의 목적이 있다. 대상자들은 Y대학 남자 엘리트 유도선수들 로 구성 하였다. 또한 본 연구가 장기간 수행됨에 따라 연구의 목적과 방법에 대해 자세한 설명과 자발적으로 참여하고자 하는 선수 34명을 선정하여 17명씩 두 집단으로 구분 하였다. 카르니틴 2g 섭취와 운동 병행군(CE), 운동과 통제군(EC)으로 구분하였다. 자료처리는 SPSS/PC 15.0을 사용하여 측정항목과 평균(M)과 표준편차(SD)를 산출하였고, 각 측정 항목의 집단과 처치기간에 따른 심폐기능과 혈중피로물질의 차이를 검증하기 위하여 two-way (2RG × 3RM) ANOVA를 실시하였으며, 집단의 처치기간과 채혈시기에 따른 지질대사 검증하기 위해 three-way (2RG × 3RM × 3RM) ANOVA를 실시하였다. 처치기간, 채혈시점에 따른 차이검증은 contrast(대비검증)을 이용하였다. 이와 같은 과정을 거쳐서 본 연구에서 도출된 결론은 다음과 같다. 첫째, 심폐기능에서 최대환기량과 최대산소섭취량은 처치기간과 집단의 상호작용효과가 유의하게 나타났고, 처치기간에 따라 통계적으로 유의하게 높아지는 것으로 나타났다. 둘째, 지질대사에서 처치기간과 집단간 유의한 차이는 중성지방, 유리지방산에서 나타났으며, 채혈시기와 집단간 유의한 차이도 중성지방, 유리지방산에서 나타났다. 셋째, 피로물질의 젖산생성율과 회복율은 집단간 유의한 차이는 나타나지 않았지만, 젖산 회복율에서는 처치기간에 따라 통계적으로 유의하게 높아지는 것으로 나타났다.
Abstract
The purpose of this study was to examine the impact of elite Judo players' L-carnitine injection on the improvement of their athletic performances to clarify L-carnitine's effect as a safe ergogenic acid and to provide necessary empirical data on athletic performances and ideal body constituents. For this study, a total of 34 subjects were examined in two different groups: athletics with carnitine injections (n=17) and controlled athletics (n=17). The following summarizes the findings of this study. Using SPSS/PC 15.0 program, it calculated measurement items, mean and standard deviation. It conducted two-way (2RG x 3RM) ANOVA to verify body composition by groups and treatment periods in each measurement item, cardiorespiratory capability and difference between lactic acid. It also carried out three-way mixed (2RG × 3RM × 3RM) ANOVA to inspect blood lipid by treatment period and blood sampling time in each group. It used contrast test to study the difference by treatment period and blood sampling time. First, there were significant treatment period-group interaction effects in maximum ventilation capacity and maximum oxygen intake in aerobic ability and it was statistically significantly increased by treatment period. Second, in blood lipid, there was significant difference between treatment period and groups in triglyceride and free fatty acid. There was also significant difference between blood sampling time and groups in triglyceride and free fatty acid. Third, in the ratio of lactic acid production of fatigue substance, there was no interaction effect during treatment and no statistically significantly difference in the major effect by treatment period. However, in the ratio of lactic acid recovery, it was a little bit increased in the carnitine-intake group and it was statistically significantly increased by treatment period.
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