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Rat의 유영훈련이 심근의 α, βMHC, mRNA 농도에 미치는 영향
박상갑,윤영학,김복주 대한스포츠의학회 2000 대한스포츠의학회지 Vol.18 No.1
The purpose of this study is to investigate the change of α·β-MHC·mRAN concentration in cardiac muscle of rats after a 12-week swimming training. The 42 subjects, three week old Spragie-Dawley rate, were divided into five groups. The control group(n=7) lead a sedentary life during the whole training period. The four exercise groups had swimming training for 30,60,90 and 120minutes a day(five times a week) respectively. The cardiac muscle was taken from the subjects, then α·β-MHC·mRAN was analyzed by the northen blot method. The mean(M) and standard deviation(SD) were calculated and tested by multiple ANOVA. The level of significance was set at the probability value 9f 0.05. The followings summarize the results : 1. The concentration of α·β-MHC·mRAN increased in the cardiac muscle of the rat with respect to the aging process. 2. In cardiac muscle of swimming training group, concentration α·β-MHC·mRAN significantly(p<.01) increased to compare with the control group. 3. The concentration of α·β-MHC·mRAN increased in the cardiac muscle of the rat by way of endurance training. 4. The effect of exercise duration may have existed in the concentration of α·β-MHC·mRAN in the cardiac muscle of the rat. As exercise duration may have existed in the concentration of α·β-MHC·mRAN increased in the cardiac muslce Thus the swimming training caused muscular hypetrophy.