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Exerc Sci > Volume 11(1); 2002 > Article

Exercise Science 2002;11(1): 25-34.

BCAA섭취가 중추피로변인 및 지구성 운동수행 능력에 미치는 효과

이한¹, 손태열¹, 홍미경¹, 홍용², 신선애¹, 안의수¹, 김완수³

¹성균관대학교
²국민체력센타
³건양대학교

ABSTRACT

Lee, H., Hong, M.K., Shin, S.A., Son, T.Y., Ahn, E.S., Kim, W.S., Hong, Y. The Effect of BCAA Administration on the Central Fatigue and Endurance Exercise Capacity. Exercise Science, 11(1): 25-34, 2002. The purpose of this study was to estimate the effect of the BCAA(branched-chain amino acid) administration on serotonin and ammonia concentrations that were central fatigue main factors, and endurance exercise capacity during exhaustive endurance exercise. 9 male cycle players of high school were chosen as subjects of this study, and BCAA(78㎎/㎏w) solved in distilled water 500㎖ were administrated to them and exhaustive endurance exercise was executed by using 70%VO2max intensity to cycle ergometer. Experimental conditions of BCAA and placebo administration were the same and randomized ingestion were used. The time of inserting catheter was earlier agents administration and the blood sampling time were just before agents administration, 50minutes after agents administration, exercise 30 minutes, exhaustion, recovery 30 minutes, 10㎖ blood was taken. Plasma BCAA and BCKA concentrations were significantly increased (p<.05) when BCAA administration, plasma ammonia concentration was increased when BCAA administration but there was not significant. Blood lactate and plasma trytophan concentrations were decreased when BCAA administration but there was not significant, plasma serotonin was significantly decreased(p<.05) when BCAA administration. RPE and exercise time were decreased when BCAA administration but there was not significant.

Key words: BCAA, ammonia, serotonin