퇴행성 슬관절염 노인여성에 있어 12 주 운동프로그램 적용 후 근기능과 신체조성 및 통증정도의 변화

지용석(Yong Suk Ji),변재종(Jae Jong Byeon),김만겸(Man Kyeom Kim) 한국사회체육학회 2000 한국사회체육학회지 Vol.13 No.-

The purpose of this study was to investigate the change of muscular function, degree of pain and body composition of female elderly ten persons with knee osteoarthritis and obesity after 12 weeks. During this periods the subjects performed isometric exercise at the specific knee joint angle without pain(15° 10° 5° in this study) and aerobic exercise to reduce the obesity that is primary risk factor of knee osteoarthritis. The results of all the variables are as followed: 1. The aspects of muscular function tested in isokinetic machine: 1) There were statistically significant differences in the peak torque, peak torque %body weight, total work, total work %body weight of extensor muscles between affected and normal knee joints, but not statistically significant differences in all variables of flexor muscles between affected and normal knee joints in the isokinetic angluar velocity of 60° /second before exercise. 2) There were statistically significant differences in all variables of extensor muscles between affected and normal knee joints, but not statistically significant differences in all variables of flexor muscles of affected and normal knee joints in the isokinetic angluar velocity of 60° /second after exercise. 3) There were statistically significant differences in all variables of extensor muscles between affected and normal knee joints, but not statisticallly significant differences in all variables in flexor muscles of affected and normal knee joints in the isokinetic angluar velocity of 180° /sec before exercise. 4) Although there were statistically significant differences in the peak torque and peak torque %body weight of extensor muscles between affected and normal knee joints, the other factors, total work and total work %body weight, were not statistically significant different at the isokinetic angluar velocity of 180° /sec after exercise. But there were not statisticall y significant differences in all variables in flexor muscles of affected and normal knee joints in the isokinetic angluar velocity of 180° /sec after exercise. 5) There were statistically significant differences in all variables of an affected extensor muscle but the peak torque and total work of an affected flexor muscle were not a significant different at the isokinetic angluar velocity of 60° /sec after exercise. But there were statistically significant differences in all variables of normal extensor and flexor muscles at the isokinetic angluar velocity of 60° /sec after exercise. 6) There were statistically significant differences in all variables in an affected extensor muscle but all variables in an affected flexor muscle were not a significant different at the isokinetic angluar velocity of 180° /sec after exercise. Although there were statistically significant differences in the peak torque, peak torque %body weight, total work %body weight of an normal extensor muscle, total work was not statistically significant different. But all variables of an normal flexor muscle were statistically significant different at the isokinetic angluar velocity of 180° /sec after exercise 2. There was not a statistically significant difference in weight, muscle mass, body fat and % body fat to observe the change of body composition between pre and post exercise. 3. There is a statistically significant difference in the pain score showing change of the degree of pain between pre and post exercise. As a conclusion, the patients with a knee joint osteoarthitis in this study can be improved in the muscular function and the pain degree but not be changed in body composition after 12 weeks. In the future, when we compose the exercise program for osteoarthitis patients, we think that the following reserch must be planed to prolonging therapy periods over 12 weeks` program which do not endowed without loads on the knee joints or can change the body composition.

카누선수의 암에르고미터 운동시 혈중 젖산, LDH와 CPK 활성변화

윤진환(Jin Hwan Yoon),지용석(Yong Suk Ji),우도영(Do Young Woo) 한국체육교육학회 2002 한국체육교육학회지 Vol.7 No.1

The purpose of this study comprised the difference on the changes of CPK and LDH activities in serum and the changes of lactate concentration in blood during arm ergometer exercise between Canoeists and Non-athletes. The subjects were 5 male middle school student(non-athletes) and 5 male middle school student(non-athletes) and 5 male middle school Canoeists(athletes). Exercise protocol were incremental maximal exercise and blood sample were collected preexercise, post exercise(all out), and recovery phase 30 minute. The obtained results are as follows: 1. Maximal oxygen uptake(peakVO_2) were significant differences between Canoeists and Non-athletes(P<.05). Maximal oxygen uptake(peakVO_2) in Canoeists were significantly higher than Non-athletes(63.74±7.62 vs 57.23±8.29ml/kg/min, respectively). 2. The blood lactate concentration were significant differences between Canoeists and Non-athletes. and There were significant change in two groups according to time period and There were significant differences in interaction of between group and time period {[F_(1.7) = 10.578, P =.014], [F_(2.14) = 42.536, P = .000],[F_(2. 14) =54.171, P =.000], respectively}. There were significantly increased after exercise as compared with pre-exercise Canoeists and Non-athletes and then decreased in the recovery phase. The results of LSD test, lactate concentration in pre-exercise was no significant differences. But lactate concentration in Canoeists were highly increased than Non-athletes after maximal exercise, and then were rapidly decreased than Non-athletes in the recovery phase. 3. The activities of CPK were significant differences between Canoeists and Non-athletes. and there were significant change in two groups according to time period. There were significant differences in interaction of between group and time period{[F_(1. 7) = 8.079, P = .0222], [F_(2. 14) = 48.289, P = .001], [F_(2. 14) = 1.550, P = .247], respectively}. There were significantly increased after exercise as compared with pre-exercise in Canoeists and Non-athletes and then decreased in the recovery phase. The results of LSD test, CPK activities in pre-exercise of Canoeists were significantly higher than Non-athletes. and were highly increased than Non-athletes after maximal exercise, and then were rapidly decreased than Non-athletes in the recovery phase.

12주간 Plyometric 운동이 여대생의 운동 및 감각신경 전도속도와 발목관절 등속성 근기능에 미치는 영향

김태수(Tae Soo Kim),지용석(Yong Suk Ji),서태범(Tae Beom Seo),윤진환(Jin Hwan Yoon) 한국사회체육학회 2013 한국사회체육학회지 Vol.0 No.52

The aim of this study was to investigate the effect of 12 wks plyometric exercise on sensory and motor nerve conduction velocity and ankle isokinetic muscular functions in college women. Twenty-three untrained college women were divided into control(n=12; age 22.24 ± 1.34 years) and experimental groups(n=11; age 22.12 ± 1.13 years). The plyometric exercise groups followed a 1 hour per day, twice-weekly, 12-wks plyo-metric exercise program, while the control groups were allowed to live their normal life. Sensory and motor nerve conduction velocity was obtained from the Medial plantar nerve by using Medelec Synergy. Also, mo-tor nerve conduction velocity was obtained from the fibula nerve by using Cantate. Using an Biodex, during isokinetic ankle dorsi flexion and plantar flexion angular velocities of 30° and 120° were obtained. For data analysis, the mean and standard deviation were estimated; 2×2 repeated measured ANOVA mixed design was carried out. The results of the present study were as follows; First, The velocity of motor nerve conduction was significantly increased in plyometric exercise group after 12 wks whereas control group maintained at end point. Second, The isokinetic muscular functions was significantly increased in plyometric exercise group after 12 wks whereas control maintained at end point. Third, ratio of PF/DF was significantly decreased in plyo-metric exercise group after 12 wks whereas control maintained at end point. It would be concluded that 12 wks plyometric exercise elicited many positive changes in the college women such as improvement of motor nerve conduction velocity and isokinetic muscular functions. and It was concluded that an plyometric exercise necessary for college women develop muscular function through Enhancement of motor nerve conduction velocity.

트레드밀 운동이 당뇨쥐 골격근 및 심근의 p-AMPK, p-ACC 및 Malonyl-CoA 발현에 미치는 영향

조진경(Jin-Kyung Cho),지용석(Yong-Suk Ji),현광석(Kwang-Seok Hyun) 한국생활환경학회 2016 한국생활환경학회지 Vol.23 No.2

This study was to investigated the effects of treadmill exercise on p-AMPK, p-ACC, and Malonyl-CoA expression of skeletal muscle and cardiac muscle in a streptozotocin (STZ)-induced diabetic rats. At 7 weeks of age, S.D rats (n=36) were induced diabetes by administering STZ. A STZ-induced rats were randomly assigned to a control (DM+C, n=12), moderate-intensity exercise group (DM+LE, n=12) and high-intensity exercise group (DM+HE, n=12). The rats were trained progressively on a treadmill, five days per weeks for eight weeks following treadmill running programs: moderate-intensity (15m/min for 60mins) and high-intensity (25m/min for 60mins). After 48-h of the last bout of exercise, blood and tissues of skeletal muscle and heart were harvested. Treadmill running for 8 weeks significantly reduced fasting glucose levels and HOMA-IR in diabetes rat models, regardless of exercise intensity. Both exercise groups significantly increased p-AMPK and p-ACC protein levels. Malonyl-CoA levels were significantly reduced in both exercise groups. The current findings suggest that treadmill running on a STZ-induced diabetes rats can provide an effective means to combat an insulin resistance and improve fatty-acid oxidation (i.e., p-AMPK, p- ACC and malonyl-CoA) in skeletal muscles and heart.

12주간 Plyometric Training이 유소년 축구 교실 참가 아동의 운동신경 전도속도와 슬관절 등속성 근기능에 미치는 영향

김유미(You Mi Kim),김태수(Tae Soo Kim),지용석(Yong Suk Ji),윤진환(Jin Hwan Yoon) 한국사회체육학회 2012 한국사회체육학회지 Vol.0 No.49

The aim of this study was to investigate the effect of 12 wks plyometric training on motor nerve conduction velocity and isokinetic muscular functions in boys while attending community-based soccer club. Fourteen trained and physically active male boys were divided into control(n=7; age 11.34 ± 1.82 years) and experimental groups(n=7; age 11.23 ± 2.21 years). The plyometric training groups followed a twice-weekly, 12-week plyometric training program, while the control groups participated in their normal soccer lessons. Motor nerve conduction velocity was obtained from the posterior tibial nerve using Viking IV. Using an isokinetic dynamometer, and during isokinetic knee extension and flexion angular velocities of 60° was obtained. For data analysis, the mean and standard deviation were estimated; 2 × 2 repeated measured ANOVA mixed design was carried out. The results of the present study were as follows; First, The velocity of motor nerve conduction was significantly increased in plyometric training group after 12 wks whereas control group maintained at end point. Second, The isokinetic muscular functions was significantly increased in plyometric training group after 12 wks whereas control maintained or increased at end point. It would be concluded that 12 wks plyometric training elicited many positive changes in the male boys of elementary school age such as improvement of motor nerve conduction velocity and isokinetic muscular functions. and It was concluded that an plyometric training necessary for elementary school-age children to develop muscular function through Enhancement of motor nerve conduction velocity.

유산소성 운동이 노인들의 신체조성과 등속성 슬관절 근력 및 요부근력에 미치는 영향

한종우(Jong Woo Han),이상석(Sang Sug Lee),송분도(Bun Do Song),지용석(Yong Suk Ji),김난수(Nan Su Kim),서경호(Kyeong Ho Seo) 한국사회체육학회 2000 한국사회체육학회지 Vol.13 No.-

This study was designed to investigate the effect of a year aerobic exercise training on body composition, isokinetic knee and trunk muscular strength of elders. The subjects for this study were eighty healthy elderly people who were members of seniors tower at Song-Do Hospital and didn`t have any history of cardiorepiratory disease. Subjects have been trained three times a week for a year. The exercise program was made up of a 15-minute warm-up, cool-down. Stretching was performed every eight minutes for the prevention of injuries which could occur during the main exercise and quick recovery of the used muscle. Aerobic training was performed for each 15-20minutes using the treadmill and cycle ergometer at the intensity of 50-70% HRmax. For the data, all the measurements were represented by mean and standard deviation using SAS package(version 6.12). Statistical techniques for data analysis were paired t-test to determine the difference between pre and post exercise program. The 5% level of significance was used as the critical level for acceptance of hypotheses for the study. The following results were obtained from this study. 1. There is a statistically significant difference in the VO_2max, fat mass, lean mass and %body fat both old men and women after a year training. 2. There is not a statistically significant difference in the weight, WHR and thigh circumference both old men and women after a year training. 3. There is a statistically significant difference in the right knee flexor/extensor peak torque, peak torque % body weight, total work and total work % body weight both old men and women after a year training. 4. There is a statistically significant difference in the left knee flexor/extensor peak torque, peak torque % body weight, total work and total work % body weight both old men and women after a year training.

국내 스포츠관광 연구의 동향과 향후 연구방향에 관한 연구

이종근(Lee, Jong-Kun),박인태(Park, In-Tae),지용석(Ji, Yong-Suk) 한국웰니스학회 2007 한국웰니스학회지 Vol.2 No.1

운동강도 설정을 위한 흥미 척도 , 운동자각도 및 심박수와의 상관관계

선상규(Sang Kyu Sun),한종우(Jong Woo Han),김명화(Myung Wha Kim),지용석(Yong Suk Ji) 한국사회체육학회 1999 한국사회체육학회지 Vol.12 No.-

The purpose of this study was to investigate for setting the exercise intensity in relation of exercise heart rate [EHR], enjoyment scale [ES], and rate of perceived exertion [RPE]. Forty males, who had not clinical disease at the Sports Health & Medicine Center of Asan Medical Center were participated in the study to establish the effective exercise intensity for using ergometer and treadmill. The subjects were divided into two groups: ergometer(EG 20males) and treadmill group(TG, 20 males). The results are summarized as following; First, the relation of heart rate and enjoyment scale was significantly different(p<.05) in EG at which presented correlation 0.47(p<.05) on 4 stage, but statistically not different in TG. Secondly, the relation of HR and RPE was significantly different(p<.05) in TG at which presented significantly correlation 0.43 on recovery 1min, but statistically not different in EG. Finally, the relation of ES and RPE was significantly different in EG at which presented significantly negative correlation of 0.60 on 5 stage and in TG presented significantly negative correlation of -0.5(p<.05) on 3 stage. As the above result, although HR and RPE have been mainly used in establishing the exercise intensity, ES also will be available for a important factor in a future.

태권도 선수들을 위한 슬개골 연골 연화증의 임상적 이해

지용석 청주대학교 학술연구소 2014 淸大學術論集 Vol.22 No.-

Objective of this study is analyze virtue researches about Chondromalacia that is one kind among cause of pain of knee and recognize definition, symptoms, diagnostic and inspect of quality, treatment until present of Chondromalacia and wish to supply basic data of presence at a sickbed disposal of efficient treatment and rehabilitation about knee pain. Pain of knee is felt by repeat action or excessive training, exercise equipment badness or muscular power imbalance or class more than corporal punishment of Taekwondo players. This pain is expose as patellar tendinitis, bursitis, Chondromalacia etc. various cause, Chondromalacia among this. Cause of chondromalacia has two opinion that increase of pressure subcatilage of bone parenchyma and medial articular capsule's traction or partial damagethat occur to outside subluxation of patella(Jae-uk Kim et al, 1979). Symptoms of chondrimalacia is that show various symptoms and symptoms posterior knee pain or feeling of helplessness of articulatio genu, play pain or crepitus of femuropatella joint to weakness of quadriceps and accompanies change such as softening or softening orfibrillation of patella articular cartilage at young age. Diagnostic methods is possible by simplicity radiograph photographing, arthrography, arthroscopy, computer tomography, but magnetic resonance imaging is used widely at the present(Ki-yong Byun et al,2000). Medical treatment of chondrimalacia can be divided by method that is operation type and method that is nonoperative type. Virtue researcher of chondromalacia a lot of virtue researches of surgical operation putting first mainly and study about curative means and rehabilitation method that is nonoperative seemed to be insufficient. Is considered to be helped on injury prevention and treatment of players if research about medical treatment that is rehabilitation of chondromalacia is achieved more.

운동 강도의 차이가 흰쥐의 혈액 성분과 적혈구의 형태에 미치는 영향

김부환,김종오,지용석,최대원,윤진환,정일규,김영욱,오봉석 한국스포츠리서치 2004 한국 스포츠 리서치 Vol.15 No.4

This study was to investigate the effects on hematological indices and heinz body formation in various intensity, Male Sprague-Dawley rats were randomly divided into the control group, the low-intensity exercise group, nigh-intensity exercise group (n=7 in each group). Animals of the low-intensity exercise groups were put on exercise 30 min per 1 day, 5 days per week for 6-weeks. Animals of the high-intensity exercise groups were put on exercise 120 min per 1 day, 5 days per week for 6-weeks. Red blood cell count (RBC), hemoglobin (Hgb), hematocrit (Hct), mean ceil volume (MCV), mean hemoglobin corpuscular (MCH), mean hemoglobin corpuscular concentration (MCHC) were analyzed in automated hematology analyzer (ABX Hematology MICROS 60) from 10㎕ of whole blood. Erythrocyte morphology were evaluated in super vital (Brilliant cresyl blue stain) stained blood films. In the present results, Hg, MCHC in the high-intensity exercise group was significantly decreased compared with the different exercise intensity and the control group. MCV in the high-intensity exercise group was significantly increased compared with the different exercise intensity end the control group. Heinz body formation in the high-intensity exercise group was significantly increased compared with the different exercise intensity and the control group. In the present study, it can be suggested that intensity of exercise can influence hematological variables and heinz body formation. These findings suggest that high intensity exercise induces oxidative damage to erythrocyte.