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윈게이트 운동직후 세 가지 유형의 회복방법이 유도선수들의 혈중젖산농도와 중앙주파수에 미치는 영향
유신환 ( Shin Hwan Yoo ),지용석 ( Yong Seok Jee ),지치환 ( Chi Hwan Jee ),유재호 ( Jae Ho Yu ),이완희 ( Wan Hee Lee ),박대성 ( Dae Sung Park ) 대한무도학회 2009 대한무도학회지 Vol.11 No.3
본 연구는 무산소성 윈게이트 운동직후 세 가지 유형의 회복방법이 근육의 피로정도를 어느 정도 회복시키는지를 알아보고자 12명의 유도선수들을 대상으로 연구를 수행하였다. 세 가지 회복방법으로는 전신진동(whole body vibration, VibTx), 능동적 회복(dynamic recovery, DyTx) 및 수동적 회복(passive recovery, StaTx)방법을 이용하였다. 선수들의 생리적 회복정도를 파악하기 위하여 안정시, 운동직후, 운동 후 10분 및 운동 후 30분에 각각 혈중젖산농도와 근전도 상의 중앙주파수(median frequency)를 분석하였다. 실험결과, 젖산농도는 StaTx와 비교하여 VibTx와 DyTx에서 유의하게 감소하였고, VibTx와 DyTx에서는 유의한 차이가 없는 것으로 나타났다. 반면, 중앙주파수는 StaTx와 비교하여 VibTx와 DyTx에서 유의하게 증가하였고, VibTx와 DyTx에서는 유의한 차이가 없는 것으로 나타났다. 이러한 결과는 무산소성 운동 후 회복방법으로 휴식과 같은 수동적인 방법보다는 가볍게 움직이거나 진동플레이트로 회복을 유도하는 것이 근피로 회복에 더욱 바람직하다고 결론지을 수 있다. The purpose of this study was to analyze the effects of three recovery methods on blood lactate and median frequency after anaerobic wingate test. Twelve Judo athletes were conducted to undergo whole body vibration recovery (VibTx), dynamic recovery (DyTx), passive recovery (StaTx) by random assignment after anaerobic test using the wingate cycle tests on one week interval. Blood lactate concentration and electromyography`s median frequency of the subjects were measured immediately before and after the tests, 10 min and 30 min after the experiment. Blood lactate concentration was significantly decreased in VibTx and DyTx compared to StaTx. And median frequency of electromyography was significantly increased in VibTx and DyTx compared to StaTx. However, there was no significant difference of blood lactate concentration and median frequency in VibTx and DyTx after wingate cycle tests. In conclusion, we suggest that VibTx and DyTx may be more effective than StaTx in shortening the recovery time of muscle fatigue.
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단기간의 카테킨 섭취가 운동후 회복기 지방연소 및 혈중 지질성분에 미치는 영향
하민수(Ha Min-Soo),지치환(Jee Chi-Hwan),김정석(Kim Jung-Suk),박석(Park Sok) 한국체육과학회 2010 한국체육과학회지 Vol.19 No.3
The purpose of this study was to examine the effects of catechin supplement on fat oxidation, free fatty acids (FFA) and triglyceride (TG) following two different treatments (placebo [PL] and catechin [CT])). Seven healthy male collegiate students participated as subjects after signing an informed consent. The submaximal exercise intensity of this study was the maximal fat oxidation exercise intensity (MFOEI) of subjects. To comparative analysis on the effect of lipid metabolism after exercise (300 kcal) after short-term supplement of catechin for three days it was compared the respiratory exchange ratio(RER), fat kilocalories (Fkcal), FFA and TG following every treatment methods. First, there were not significant differences in fat oxidation included RER and Fkcal among treatment methods. However, the RER values was decreased in the CT and the Fkcal values was increased in the CT than PL. Second, there were significant differences in FFA and TG among treatment methods(p<.05). The TG of CT was significantly higher than PL at 10min of recovery. The FFA concentration of CT was significantly higher than PL at 30 min of recovery. Especially, CT treatment has high than PL for recovery periods. In summary, results of this study revealed that catechin have the beneficial effects on fat oxidation and glycogen sparing by fat metabolism facilitation. Although the detailed molecular mechanism by which catechin enhances fat use during exercise remains to be elucidated, activation of lipid metabolism in skeletal muscle is believed to be a key factor.
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