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사전운동보충제 섭취가 직업 트레이너의 신체조성, 1RM 및혈액변인에 미치는 영향

Effects of Pre-Workout Supplements Intake on Professional Trainer's Body Composition, 1RM and Blood Variables

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초록

본 연구의 목적은 8명의 직업 트레이너를 대상으로 4주간의 사전운동보충제 섭취에 따른 저항훈련이 신체조성, 1RM 및 혈액변인의 변화를 보고자 하였다. 실험대상은 각각 4명씩 사전운동보충제 섭취집단(PWG)과 섭취하지 않는 비교집단(WG)으로 분류하였다. 두 집단 모두 운동 전과 4주간의 고강도 운동 프로그램을 수행 후 신체조성(골격근량, 체지방량), 1RM(스쿼트, 데드리프트, 벤치프레스) 및 혈액변인(암모니아, 크레아틴 인산, GOT, GPT)을 측정하여 비교하였다. SPSS 통계 프로그램을 이용하여 모든 변인에 대한 평균 및 표준편자를 산출하고, 독립 t- 검증, 공변량 분석, 이원반 복분산분석을 실시하였고, 통계적 유의수준(α)은 .05로 설정하였다. 그 결과는 다음과 같다. 첫째, 체지방량은 PWG에서 유의하게 감소하였으나, 골격근량은 유의한 변화가 없었다. 둘째, PWG의 데드리프트와 벤치프레스 1RM이 유의한 증가가 있었으나, 스쿼트의 1RM은 변화가 없었다. 셋째, 두 집단 모두 크레아틴 인산, GOT, GPT는 유의한 차이가 나타나지 않았지만, 암모니아는 유의하게 증가하였다. 결론적으로 사전운동보충제섭취에 따른 4주간의 고강도훈련은 골격근량과 크레아틴 인산, GOT 및 GPT에는 영향이 없었으나, 1RM과 암모니아의 증가에 영향을 주었다.

Abstract

The purpose of this study was to changes in body composition, 1RM and blood variables to professional trainers following four weeks of pre-workout and supplementation. The subjects were divided into a pre-workout supplement intake group (PWG) and a comparison group without intake(WG) of 4 people each. The measurement variables of this study were body composition (muscle mass, body fat), 1RM, and blood variables (ammonia, creatine phosphate, GOT, GPT). The mean and standard deviation for all variables were calculated using the SPSS program, and independent t-test, ANCOVA, and two-way repeated ANOVA were performed, and the statistical significance level was α=.05. The results are as follows. First, Body fat mass decreased significantly in PWG, but skeletal muscle mass did not change significantly. Second, the PWG increased significantly in 1RM after treatment in dead-lift and bench press excluding squats. Third, In both groups, there was no significant difference in creatine phosphate, GOT, and GPT, but ammonia was significantly increased. In conclusion, four weeks of high-intensity training due to pre-workout supplement intake had no effect on skeletal muscle mass, creatine phosphate, GOT and GPT, but had an effect on 1RM and ammonia increase.

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