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웨이트 트레이닝과 최대하 달리기 운동이 운동 후 초과산소소비량에 미치는 영향
이덕분 한국스포츠리서치 2003 한국 스포츠 리서치 Vol.20 No.1
The purpose of this study was to identify the change of EPOC according to weight training(60% 1-RM) and submaximal running(60% VO2max). This study was conducted for 10 healthy male college students. Data were processed using the two-way ANOVA. As a result, it there was a statistically significant difference at the level of p<.05 in the period between types of exercise, the post-test was conducted using Bonferroni. It is impossible to judge which exercise of submaximal running and weight training is the one to increase EPOC, but when exercise was performed with the amount of exercise consuming 300㎉, EPOCand the total amount of energy consumption were shown to be higher in submaximal running than weight training. And it was found that the RER was 0.86 in submaximal running and 0.73 in weight training. Accordingly, when submaximal running and weight training were performed with the same amount of exercise able to consume 300㎉, it was found that it was an effective exercise method to perform submaximal running for fat decomposition. To investigate fat oxidation for the resting period using the RER, the fat oxidation rate was shown to be lower after resistance than after submaximal running, for this reason, it would be a more efficient exercise method to using both types of exercise than to perform only submaximal running in terms of fat oxidation.
In Vivo ^31P NMR Spectroscopy를 이용하여 젖산 운동시간과 유산소 운동시간에 따른 골격근 섬유의 고 에너지 인(P) 대사 변화
성기홍,임태환,이대근,문치웅,이정희,김상태,신명진,이덕분 대한스포츠의학회 1994 대한스포츠의학회지 Vol.12 No.1
Intracellular high energy phosphorus metabolism can be assessed noninvasively and dynamically by in vivo ^31P NMRS of skeletal muscle have shown various applications of this technique in evaluating the pathophysiology of diseased or normal muscles. High energy phosphate metavolsim in the human skeletal muscle was studies in the work. ^31P nuclear magnetic resonance spectroscopy allowed the evaluate of the lactic acid and aerobic energy system in the intracellular skeletal muscle by energy concentration of ^31P nuclear magnetic resonance spectroscopy allowed the evaluate of the lactic acid and aerobic energy system in the intracellular skeletal muscle by energy concentration of ^31P metabolite, (Pi), (PCr), (ATP). The ratio of Pi/PCr the spectra measured from normal volanteers and elite athleties indicated a signetifcant difference between the two group for each exercise protocal. It was generally ovserved that the all out time of normal volunteers in shorter that that of elite athletes, and the ration of Pi/PCr is samller for elite athlets than for normal volunteers.
초등학교 리듬체조 선수와 비선수의 최대운동후 EPOC비교
이덕분(Lee Duck-Boon),이용수(Lee Young-Soo),송희(Song Hee),맹희정(Maeng Hee-Joung) 한국체육과학회 2000 한국체육과학회지 Vol.9 No.2
The purpose of this reserch was to oxygen consumption (VO₂), respiratory exchange ratio (RER), heart rate (HR) energy expenditure and excess post-exercise oxygen cosumption(EPOC) of gymnast of elementary school and those of general student of elementary school during 60 minutesafter maximal exercise. Ten gymnasts and the other ten general students participated in the experiment and measured variables before, during and after the exercise. I measured it for 60 minutes after the exercise. Oxygen uptakes when they take a rest is not to eat over 10 hours and arrive at laboratory about 6 o' clock in the morning. And after the arrival at laboratory they lay for 20 minutes to take a rest. I measured EPOC from oxygen uptakes in recovery reduced oxygen uptakes in the rest. According to result of Two-way repeated measures ANOVA and Bonferroni, oxygen intake recovery was not higher(p>.05). But oxygen uptake of gymnasts were significantly higher than those of general students during rest period and post-exercise recovery period. HR of general students was significantly higher than that of gymnasts(p<.05) and rest period between post-exercise recovery period stages were significantly higher(p<.05). RER of gymnastic group was higher than that of general students during recovery period was rest also rest period between post-exercise recovery period was significantly higher(p<.05). After exercise, those of gymnasts(365.68㎖/㎏/min) and general students (365.5㎖/㎏/min) were not higher during 60 minutes of EPOC but it was higer in interval. General students was significantly higher(90.79kcal) that energy expenditure during exercise. Results of this research can be important index for preparing appropriate sports program to prevent fatness by measuring VO₂, RER, HR and EPOC after maximal exercise of children. And I hope that these results can be used for training to modulate weight of gymnasts.
이덕분(Lee Duck-Boon) 한국체육과학회 2002 한국체육과학회지 Vol.11 No.2
The purpose of this study were to utilization of RPE for exercise intensity of maximal fat oxidation compare during maximal exercise between trained and untrained. The subject of this study were ten athletics(above of VO₂max 60㎖/㎏/min) and ten non-athletics(below of VO₂max 60㎖/㎏/min). Oxygen uptake(VO₂), respiratory exchange ratio(RER), total kilocalories per minute(Tkcal), fat kilocalories per minute(Fkcal) and the rating of perceived exertion(RPE) were measured during the rest 20min and every stages of maximal exercise. The main findings of this study were follows; 1. There was significant difference in oxygen uptake between groups(p<.05), but no significant difference were observed in the respiratory exchange ratio between groups(p>.05). 2. There were significant difference in exercise intensity of maximal fat oxidation and rating of perceived exertion between groups. These results suggest that capability the utilization of rating of perceived exertion for maximal fat oxidation exercise intensity were existent.
트레드밀 운동부하 방법에 따른 최대산소섭취량 최대심박수 및 운동자각도 비교분석
김여경,이덕분,김시덕,이용수,이용진 대한스포츠의학회 1997 대한스포츠의학회지 Vol.15 No.2
The purpose of this experiment was to compare the VO_2 max, HR max, and the HR and VO_2 at specific RPE level (7.9.11.13.15.17.19) obtained three exercise protocols, Three protocol grade only, Ellestad speed only, and Ramp protocol both speed and were used to imposed greater workloads. Nine healthy male college students(20±2.2yrs) participated voluntarily. The order of three exercises tests was randomly scheduled by draws and 48hrs were given between each test. Borg's RPE scale(6-20point) was used for RPE measurement. The RPE data were collected in the final 10 seconds of each stage. ANOVA with repeated measures indicated no significant differences of HR and VO_2 at RPE 7 to 19 showed the significant differences among the protocols. HR obtained from Balke protocol at RPE level of 13 and 15(143±16.1 beats/min, 160±10.5 beats/min), were significantly lower than that of Ellestad beats/min, (163±14.3 beats/min, 175±14.6 beats/min), respectively (p<0.01). The results suggest that active young men perceive the effort differently on different exercise protocols at 60 to 80% of maximal capacity and may perceive harder on the inclined protocol.
Seo, Jae Ho,Lim, Jung Chae,Lee, Duck-Yeon,Kim, Kyung Seok,Piszczek, Grzegorz,Nam, Hyung Wook,Kim, Yu Sam,Ahn, Taeho,Yun, Chul-Ho,Kim, Kanghwa,Chock, P Boon,Chae, Ho Zoon American Society for Biochemistry and Molecular Bi 2009 The Journal of biological chemistry Vol.284 No.20
<P>Peroxiredoxins (Prxs) are a group of peroxidases containing a cysteine thiol at their catalytic site. During peroxidase catalysis, the catalytic cysteine, referred to as the peroxidatic cysteine (C(P)), cycles between thiol (C(P)-SH) and disulfide (-S-S-) states via a sulfenic (C(P)-SOH) intermediate. Hyperoxidation of the C(P) thiol to its sulfinic (C(P)-SO(2)H) derivative has been shown to be reversible, but its sulfonic (C(P)-SO(3)H) derivative is irreversible. Our comparative study of hyperoxidation and regeneration of Prx I and Prx II in HeLa cells revealed that Prx II is more susceptible than Prx I to hyperoxidation and that the majority of the hyperoxidized Prx II formation is reversible. However, the hyperoxidized Prx I showed much less reversibility because of the formation of its irreversible sulfonic derivative, as verified with C(P)-SO(3)H-specific antiserum. In an attempt to identify the multiple hyperoxidized spots of the Prx I on two-dimensional PAGE analysis, an N-acetylated Prx I was identified as part of the total Prx I using anti-acetylated Lys antibody. Using peptidyl-Asp metalloendopeptidase (EC 3.4.24.33) peptide fingerprints, we found that N(alpha)-terminal acetylation (N(alpha)-Ac) occurred exclusively on Prx II after demethionylation. N(alpha)-Ac of Prx II blocks Prx II from irreversible hyperoxidation without altering its affinity for hydrogen peroxide. A comparative study of non-N(alpha)-acetylated and N(alpha)-terminal acetylated Prx II revealed that N(alpha)-Ac of Prx II induces a significant shift in the circular dichroism spectrum and elevation of T(m) from 59.6 to 70.9 degrees C. These findings suggest that the structural maintenance of Prx II by N(alpha)-Ac may be responsible for preventing its hyperoxidation to form C(P)-SO(3)H.</P>