엘리트 유도선수들의 L-carnitine 섭취가 무산소성파워 및 젖산 농도에 미치는 영향
Effects of L-carnitine Administration on Anaerobic Capacity and Blood Lactate Concentration in Elite Judo Athletes
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초록
본 연구는 엘리트 유도선수들의 L-carnitine 투여가 운동 수행능력의 향상에 미치는 영향을 알아보고자 무산소성 운동능력과 젖산 농도를 규명하여, 안전한 운동 능력 향상 보조물(Ergogenic acid)검증을 통한 운동과 이상적인 신체조성에 필요한 실험적 자료를 제공하는데 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 사람 21명을 선정하여 7명씩 세 집단으로 구분 하였다. 카르니틴 2g 섭취와 운동 병행군(CE), 운동과 위약섭취군(EP), 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 무산소능력과 혈중 피로물질의 차이를 검증하기 위하여 two-way(3RG × 4RM) ANOVA를 실시하였다.집단의 사후검증은 LSD를 사용하였으며, 처치기간, 채혈시점에 따른 차이검증은 contrast를 이용하였다. 이와 같은 과정을 거쳐서 본 연구에서 도출된 결론은 다음과 같다. 첫째, 무산소성 능력에서 피크파워와 평균파워는 처치기간에 따라 유의하게 높아지는 결과가 나타났다. 둘째, 피로물질의 젖산생성비율은 처치기간에 상호작용효과도 나타나지 않았고, 처치기간에 따른 주효과도 통계적으로 유의한 차이가 나타나지 않았다. 하지만, 젖산회복비율에서 카르니틴섭취군은 소폭 상승하는 경향을 확인 할 수 있었고, 처치기간에 따라 통계적으로 유의하게 높아지는 것으로 나타났다.
Abstract
The purpose of this study was to effect a L-carnitine Administration on Anaerobic Capacity in Elite Judo Athletes and to provide a experimental date needed ideal bodycomposition through verification of safety ergogenic acid, anaerobic capacity and blood lactate concentration. Subjects were Judo athletes with more than 6 years Judo career, no recent medical diagnosis, and no experience to intake a certain drug or a herb remedy at least within 6 months before this study among male elite Judo athletes in Y university. It was a long-term study, therefore, it described the objective and methods of this study in detail, selected 21 volunteers and classified them into 3 groups with 7 people each; 2g of carnitine and exercise (CE), exercise and placebo (EP) and only exercise (EC). Using SPSS/PC 15.0 program, it calculated measurement items, mean and standard deviation. It conducted tow-way(3RG x 4RM)ANOVA to groups and treatment periods in each measurement item, anaerobic capability and difference between lactic acid. It used post-hoc test for groups and used contrast test to verify the difference of treatment period and blood sampling time. With those, it deducted following conclusions. First, in anaerobic ability, it showed significant increase of peak power and mean power by treatment period. Second, 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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