일부 직장 남성들의 운동형태가 심혈관질환의 위험 예측인자에 미치는 영향

이석인,김남진,Lee, Suk-In,Kim, Nam-Jin 대한예방의학회 2006 예방의학회지 Vol.39 No.6

Objectives : The purpose of this study was to gain an understanding of the effects of three exercise types on anthropometric and serum lipids and physiological index factors, which are known to be the three risk factors of cardiovascular disease in male workers. Methods : The experimental study period was 12 weeks. In this study, 30-40's males (N=31) were assigned to 3 experimental groups: regular aerobic(treadmill walking) exercise group, regular anaerobic(muscular endurance) exercise group, irregular aerobic & anaerobic exercise group and a control group using a stratified random assignment method. Results : In relation to anthropometric factors, the regular aerobic & anaerobic exercise groups showed significant decreases in Weight, Broca's index, WC, BMI, WHtR, WHpR and HRrest. With regard to the serum lipid factors, the TC was decreased, but the HDL-c increased among the regular aerobic & anaerobic exercise groups. However, no significant difference was found between the other groups in respect to the LDL-c and TG. Considering the physiological factors, the TC/HD-c, TC-HDL/HDL-c, LDL-C/HDL-c and NON-HDL-c ratios were decreased, but the HDL-c/TC ratio increased among the regular aerobic & anaerobic exercise groups. The TG/HDL-c and HDL-c/LDL-c ratios showed no significant differences between the groups. These results indicated that the positive change for each factor is much larger in the regular exercise groups, especially in the anaerobic exercise group. Conclusions : The results indicate that not only regular aerobic exercise, but also regular anaerobic(muscular endurance) exercise could be utilized in lessening the deleterious effects of the risk index factors for cardiovascular disease.

수퍼 써키트웨이트트레이닝과 써키트웨이트트레이닝이 여성의 신체구성과 심폐기능에 미치는 효과

이석인(Lee Suk In),이상연(Lee Sang Yeoun),이신언(Lee Shin Un),주희철(Joo Hee Chol),황종문(Hwang Jong Moon),이충일(Lee Chung ll) 한국사회체육학회 2000 한국사회체육학회지 Vol.14 No.-

This study has found the following results after analyzing the effects of super circuit weight training and circuit training on body composition and candiorespiratory functions before and after training. 20 female subjects were selected from "J" health center in Seoul and divided into 2 groups for super circuit weight training(G-1) and circuit training(G-2). The subjects participated in 12 week training program. 1. Comparison on body composition before and after training Body weight significantly decreased in both groups while Lean body mass increased in both groups without significance. % Fat and fat weight decreased significantly in both groups. The decrease rate and increase rate of body weight, % fat, fat weight, and lean body mass was higher in the super circuit weight training group(G-1) than circuit weight training group(G-2). 2. Comparison on blood pressure before and after training both groups showed significant decrease in systolic and diastolic blood pressure. But the decrease rate was higher in super circuit weight training group (G-1) than circuit weight training group(G-2). 3. Comparison on cardiorespiratory function before and after training Resting heart rate was significantly decreased in both groups with the decrease rate higher in the super circuit weight training group(G-1) than circuit weight training group(G-2). Signifcant increase of VO2 max was assessed in both groups and the increase rate of VO max was higher in Super circuit weight training group(G-1) than circuit weight training group(G-2). According to the results from the study significant changes to body composition, blood pressure and cardiorespiratory functions were assessed in both groups after training. Based on the findings above, where super circuit weight training group was found to be more effective, we'd recommand super circuit weight training program for effective weight reduction and improvement of cardiorespiratory functions.

고온 환경에서 카페인 섭취가 성별에 따른 근 통증 반응에 미치는 영향

이석인(Lee Suk-In),이정범(Lee Jeong-Beom),김태욱(Kim Tae-Wook) 한국체육과학회 2011 한국체육과학회지 Vol.20 No.2

The current study investigated whether the sex difference on muscle pain following 3㎎/㎏-1 caffeine ingestion was explained by whole body sweat loss volume(WBSLV), muscle pain rating(MPR) and creatine kinase(CK) during pain task (backward walking, gradient -15%, 3㎞ㆍh-1, 85-88 stepsㆍmin-1, 30 min, room temperature 31-32℃ with 40-50% relative humidity). 28 college students volunteered for this investigation and randomized designed and divided into no caffeine (male-6, Con-M: female=7, Con-F) and intake caffeine groups (male-7, Caff-M: female=8, Caff-F). The WBSLV rate was significantly higher in Caff-F them Con-F (p<.05), but not male groups. The MPR was significantly decreased in Caff-F than Con-F at 5min (p<.01), 10min (p<.0l) and 15min (p<.05). However, CK was significantly higher in Caff-F than Con-F, not male groups. Our finding suggest that sex differences in nocicpetive transmission and neuronal sensitization via caffeine, but the lower MPR in female than male in this investigation cause not muscle damage parameters. Therefore, additional research is required to identify the parameters that influence the neurohumoral transmitter of sex difference following caffeine.

웨이트레이닝과 써키트 웨이트트레이닝이 신체구성 , 근력 , 심박수와 혈압에 미치는 효과

이석인(Suk In Lee) 한국사회체육학회 1999 한국사회체육학회지 Vol.12 No.-

This study analyzes the effects of weight training and circuit weight training on body composition, muscular strength, heart rate and blood pressure. 20 healthy male students were selected as subjects from `J` university in Seoul and Participated in a training program which was conducted for 12 weeks on the basis of every Monday, Wednesday, And Friday. The subjects were devided into two groups : weight training group(G-1 : N : 10) and circuit training group(G-2 : N : 10). The results obtained from the study are as follows. 1. Comparison of body composition before and after training Body weight and lean body mass measurements were significantly increased in both groups after training while increase rate was higher in the weight training group. A significant decrease in %fat measurements was observed in both groups with decrease rate higher in the circuit weight training group. After training, significant changed in body fat weight were assessed in the circuit weight training group but significant not changed in the weight training group. 2. Comparison of muscular strength, before and after training Grip strength, back muscle strength, bench press and leg press strength were significantly increased in both groups after training. Increase rate in strength measurements was higher in the weight training group than circuit weight training group. 3. Comparison of heart rate before and after training A significant decrease in resting heart rate was assessed in circuit weight training group after training whereas significant not decreased in the weight training group. 4. Comparison of blood pressure before and after training Systolic blood pressure was significantly decreased in both groups after training with decrease rate higher in the circuit weight training group. But diasolic blood pressure significantly not decreased in weight training and circuit weight training.

근대 5종 선수의 글루타민 섭취가 혈중 글루타민과 근피로 생체지표에 미치는 영향

이창주(Lee, Chang-Joo),안창식(An, Chang-Sik),이석인(Lee, Suk-In),김태욱(Kim, Tae-Wook) 한국체육과학회 2016 한국체육과학회지 Vol.25 No.2

The purpose of this study is to identify the effects of intake of glutamine on changes in glutamine, ammonia, lactic acid and creatin kinase(CK) in the blood after prolonged exercises with sub-maximal intensities targeting modern pentathlon athletes. 14 male modern pentathlon athletes were selected randomly as subjects of this study and were divided into a group of treatment with glutamine(Glu-G) and a group of no treatment(Con-G). The treadmill exercise was carried out at 75% VO₂max for 90 min. Incase of Glu-G, 100mg · kg-1 of glutamine was given in a day for 7 days and the following conclusions were obtained. The level of glutamine in the blood after the treadmill exercise was significantly higher in Glu-G than that in Con-G(p<.01) and ammonia in the blood after treadmill exercise was significantly lower in Glu-G compared with that in Con-G(p<.001). The level of lactic acid and creatine kinase in the blood was significantly lower in Glu-G compared with that in Con-G(p<.001 and p<.01, respectively). The conclusion was drawn in which intake of glutamine gave the positive effect on reduction of muscle fatigue. Since it was confirmed that intake of glutamine gave the positive effect on reduction of CK in the blood, it was thought to consider the intake of glutamine in order to reduce the muscle damage.

고교 씨름선수의 근력과 심폐기능에 관한 연구

이만기(Man Ki Lee),이석인(Suk In Lee) 한국사회체육학회 1999 한국사회체육학회지 Vol.12 No.-

10 Ssireum wrestlers were selected as athletes group and 10 students without particular athletic experience were selected as non-athletes group from "D" high school in Pusan. This study analyzed muscular strength and cardiorespiratory function of the ssreum wrestlers and the results are as follows. 1. Comparison of muscular strength Back muscle strength was significantly(p<0.001) higher in the athlete group than in the non-athlete group. Head grip strength(of both left and right side) was also significantly(p<0.01) higher in the athlete group than in the non-athlete group. 2. Comparison of Cardiorespiratory function VEmax was significantly(p<0.001) higher in the athlete group than in the non-athlete group. Heart rate was significantly(p<0.001) lower in the athlete group than in the non-athlete group. While little difference was observed in HRmax in both groups. VO_2 max was significantly(p<0.01) higher in the athlete group than in the non-athlete group.

트레드밀 지구성 운동이 streptozotocin으로 유발된 당뇨 흰쥐의 뇌에서 PGC-1α, GLUT-1, Tfam 단백질 및 항산화 효소(Cu, Zn-SOD, Mn-SOD)의 발현량에 미치는 영향

Noh-Hwan Park(박노환),Jin Lee(이진),Kook-Hyun Jung(정국현),Bong-Am Choi(최봉암),Hyung-Chae Jang(장형채),Suk-In Lee(이석인),Dong-Soo Lee(이동수),Joon-Yong Cho(조준용) 한국생명과학회 2011 생명과학회지 Vol.21 No.3

이 연구는 지구성 운동이 streptozotocin (STZ)으로 유발된 제1형 당뇨 특징을 가진 쥐 뇌의 글루코스 운반, 미토콘드리아 기능 및 항산화효소 단백질 발현에 미치는 영향을 규명하는데 목적이 있다. 제1형 당뇨 모델 쥐는 50 ㎎/㎏의 streptozotocin을 수컷 Sprague-Dawley (SD) 흰쥐의 복강에 1회 주입하여 생산하였으며 본 실험 시집단은 NON-STZ 집단(n=8), STZ-CON 집단(n=8) 및 STZ-EXE 집단(n=8) 등 3집단으로 구분하여 실시하였다. 트레드밀 지구성 운동은 총 6주, 주 5일, 2주 간격으로 속도를 약 3∼4 m/min으로 점증적으로 증가시켰으며 운동시간은 1주와 3주차에 10분씩 증가시켰다. 분석 결과 혈청 글루코스 수준은 STZ-EXE 집단은 STZ-CON 집단에 비해 현저하게 감소(p<0.05)하였으며 PGC-1α (p<0.001), mtPGC-1α (p<0.001), GLUT-1 (p<0.001), Tfam(p<0.001), Cu,Zn- SOD (p<0.001), Mn-SOD (p<0.01) 경우도 STZ-EXE 집단이 STZ-CON 집단에 비해 현저하게 증가하였다. 이러한 결과는 장기간 지구성 운동이 뇌의 글루코스 이용능력과 관련된 단백질인 GLUT-1과 미토콘드리아 기능 향상과 관련된 단백질인 PGC-1α과 Tfam을 증가시키고 산화적 스트레스의 방어 기전으로서 역할을 수행하는 항산화 효소인 Cu,Zn-SOD와 Mn-SOD를 활성화시키는데 긍정적인 역할을 수행한 것으로 나타났다. The purpose of this study is to identify the effects of exercise training [ET, 10~18 m/min (speed), 20~30 min (exercise duration)/a day for 5 day/wk, 6 wk) on PGC-1α, GLUT-1, Tfam, Cu,Zn-SOD and Mn-SOD proteins in brain of STZ-induced diabetic rats. The male Sprague-Dawley (SD) rats were single-injected intraperitoneally with 50㎎/㎏ of streptozotocin (STZ) to produce STZ-induced diabetic rats. Rats were divided into 3 experimental groups with 8 rats in each group, as follows: (1) non-STZ group (n=8), (2) STZ-CON group (n=8), (3) STZ-EXE group (n=8). The results of this study suggest that i) serum glucose level was significantly reduced in STZ-EXE group compared with STZ-CON group (p<0.05), ii) PGC-1α (p<0.001), mtPGC-1α (p<0.001), GLUT-1 (p<0.001), and mtTfam (p<0.001) proteins in brain of STZ-induced diabetic rats were significantly increased in STZ-EXE group compared with STZ-CON group, iii) Cu,Zn-SOD (p<0.001) and Mn-SOD (p<0.01) proteins in the STZ-induced diabetic rats were significantly increased in STZ-EXE group compared with STZ-CON group. In conclusion, the findings of the present study reveal that treadmill exercise training increases brain GLUT-1 protein level possibly through up-regulation of PGC-1α and Tfam proteins which represent key regulatory components of stimulation of brain mitochondrial biogenesis. In addition, treadmill exercise training may prevent oxidative stress by up-regulation of Cu,Zn-SOD and Mn-SOD proteins in the STZ-induced diabetic rats.

고온 환경에서 신체활동 전 카페인 섭취가 성인 여성의 저체수분증에 미치는 영향

이석인(Suk In Lee),김대한(Dae Han Kim),김태욱(Tae Wook Kim) 한국사회체육학회 2010 한국사회체육학회지 Vol.0 No.41

This study aims to find out the effect of caffeine ingestion of college woman student on whole body loss volume (WBLV), tympanic temperature (Tty), serum osmolality (Osmserum), hemoglobin (Hb), hematocrit (Hct) change during 40 min of treadmill running exercise in the heat environment (31.2±0.71℃, relative humidity 42.2±5.4%). Thirty trained females (age; 21.9±2.03 yrs, height; 162.0±2.47 cm, weight; 51.95±2.61 kg) who routinely trained for approximately 5 hours·wk-1 were random assigment into three groups (control; CON-G, placebo; PLAC-G, caffeine; CAFF-G). WBLV following exercise was all groups and there was significant difference among the groups (p<.001), and higher in the CAFF-G. In the case of Tty, higher in the CAFF-G at 35-40 min but no significant difference among the groups depending on time (p=.748). The Osmserum (p=.149), Hb (p=.554) and Hct (p=.160) were not significant differences among the groups. In conclusion, it was confirmed that the 3mg·kg-1 caffeine ingestion of college woman students prior to exercising in heat environment does not stimulated on hypohydration. However, caffeine has the potential to negative affect on hydration status during 40 min over prolonged exercise.

건강운동 참여한 성인의 주관적 운동능력 인지와 열정, 운동 자기효능감, 지각된 건강상태 간의 관계

이석인(Suk In Lee),오은택(Eun Taek Oh),백광(Kwang Baik) 한국사회체육학회 2011 한국사회체육학회지 Vol.0 No.43

The purpose of this study was to examine the effect of the subjective exercise ability and passion on exercise self-efficacy and perceived health in life sport participants. To process the data, this research conducted exploratory/confirmatory factor analysis, 2X2 MANOVA, reliability. correlation analysis, hierarchical multiple regression with SPSS 15.0 program and AMOS 6.0. The results of this research were as followings. First, this study didn`t find the differences between exercise self-efficacy and perceived health by subjective exercise ability in life sport participants. Also, Participants in the higher harmonious passion reported higher levels of exercise self-efficacy than did those in the low harmonious passion. Participants in the higher obsessive passion and harmonious passion reported higher levels of exercise self-efficacy and perceived health. Second, Harmonious passion of life sport participants had significantly positive influence on the exercise self-efficacy and perceived health.

트레드밀 운동 프로그램이 장년기 경계고혈압자의 혈압, 심폐기능 및 혈청지질에 미치는 효과

이석인(Suk In Lee),김제영(Jey Young Kim) 한국발육발달학회 2002 한국발육발달학회지 Vol.10 No.2