크레아틴-중탄산나트륨의 복합투여가 암-에르고미터 운동수행력에 미치는 영향
The Effect of Combined Creatine and Sodium Bicarbonate Supplementation on Arm-Ergometer Performance
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본 연구는 크레아틴, 중탄산나트륨, 그리고 크레아틴과 중탄산나트륨의 복합투여가 암-에르고미터(arm-ergometer)를 이용한 상지 근기능에 미치는 효과를 알아보기 위해 경기도 소재 Y대학교 체육계열 남 ․ 여학생 17명을 대상으로 실시하였다. 무선추출법을 통해 크레아틴 투여집단(n=7), 중탄산나트륨 투여집단(n=5), 크레아틴과 중탄산나트륨의 복합투여집단(n=5), 총 3 집단으로 나누어 암-에르고미터를 이용한 상지 근기능 사전검사(pre-test) 후 집단별 로딩(loading)이 완료된 5일 후 사후검사(post-test)를 동일하게 실시하였다. 자료처리는 통계패키지 SPSS Ver. 12.0을 이용하여 모든 변인의 측정결과를 평균과 표준편차로 산출하고, 집단 및 시기 차이에 대한 주효과검정과 집단과 상호작용효과를 알아보기 위해 반복측정에 의한 이원변량분석 (Two-way repeated measured ANOVA)을 실시하였으며, 모든 통계적 유의수준은 p<.05로 설정하였다. 본 연구의 결과 암-에르고미터를 통한 검사 항목에서 최고파워, 피로지수, 체중당 피크파워, 안정시 젖산농도 등에서 시기에 따른 유의한 차를 나타내었으나, 집단 간 유의한 차이는 나타나지 않았다. 결론적으로, 크레아틴과 중탄산나트륨 그리고 크레아틴과 중탄산나트륨의 복합투여는 암-에르고미터를 이용한 상지 운동수행력에 긍정적인 영향을 미치는 것으로 나타났으나, 복합투여의 우수성은 나타나지 않았다.
Abstract
The purpose of this study was to assess the effects of creatine, sodium-bicarbonate and combined creatine and sodium bicarbonate supplementation on upper limbs with arm-ergometer. Seventeen students majoring in physical education were randomly assigned to 3 groups [creatine (n=7), sodium bicarbonate (n=5), creatine & sodium bicarbonate (n=5)]. Pre-test consisted of muscular function of upper limbs with arm-ergometer and after 5 days later for creatine and sodium-bicarbonate loading, post-test was processed with the same way as pre-test. Statistical analysis was performed by two-way repeated measured ANOVA for intervention. Significance was accepted at p<.05. The following results were obtained from this study. Peak power, fatigue-index, peak power/kg and peak attainment time of arm-ergometer test were significantly (p<.05) increased by time but no difference among the groups. In conclusion, creatine, sodium bicarbonate and combined creatine & sodium bicarbonate supplementation favorably affected muscular function of upper limbs with arm-ergometer but there were no significant difference among the groups.
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