장기간 운동이 노인들의 심혈관계 기능 변화에 미치는 효과

지용석,김동진,유신환 대한스포츠의학회 2004 대한스포츠의학회지 Vol.22 No.1

The purpose of this study was to investigate the change of related factors in cardiovascular function variables after long duration regular exercise programs. The subjects of this study were 40 older man and women residing Seoul-Seniors-Tower. All of subjects divided to four groups, exercise group 20(man = 10, women = 10) was participating in an exercise program for 3 years, and the other group or non-exercise group 20(man = 10, women = 10) was not in that program. In the results, Changes of cardiovascular function were significantly improved in peak oxygen uptake, ventilation, rest blood pressure of cardiovascular function variables in male or female exercise groups after 3 years' exercise program. Also, we have been known to the facts that although the cardiopulmonary variables of men are superior to those of women, if being exercised for a long time, the women's cardiopulmonary variables(e.g. Endurance time, HRrest, SBPrest, SBPmax, DBPrest, RPPrest, and RPPmax) would not different from those of the men especially in old ages. As a conclusion, we could know that not only the regular exercise might increase or change almost the cardiovascular function variables except for V ˙O2max, Ventilation, and HRmax of elderly people, but also the sex's differences were vanished in endurance time, HRrest, SBPrest, SBPmax, DBPrest, RPPrest and RPPmax between males and females. Therefore, we might tell that exercise programs could provide an excellent parameters for enforcing or keeping the cardiovascular functions of elderly people.

여성의 건강관련 체력에 관한 연령별 비교

지용석,임선태,유재현 대한스포츠의학회 2004 대한스포츠의학회지 Vol.22 No.1

The aim of this study was to investigate the differences of health related fitness variables in korean women. A total of 419 women were recruited and divided into five age groups; 20s(n=163), 30s(n=99), 40s(n=79), 50s(n=61) and over 60s(n=17). In the results, the cardiopulmonary(F=10.150, p=0.001) and muscular endurance(F=3.360, p= 0.010) variables of 20s and 60s were significantly higher and lower than those of other four groups respectively. However, no differences were found among five groups in back strength, grip strength, and flexibility. The body mass indices(BMI) of 50s and 60s were significantly(F=21.033, p=0.001) higher than those of other four groups respectively. As a conclusion, from the results we think that the korean women may be favorable to be prescribed for the exercise programs, which can develop the cardiopulmonary and muscular endurance but decrease the fat mass.

700MHZ대역의 마이크로파 적층 스트립라인 칩 대역통과 필터설계 및 제작

김민석,김지균,이헌용 明知大學校 産業技術硏究所 2000 産業技術硏究所論文集 Vol.19 No.-

In this thesis, we studied the design and fabrication of microwave multilayer chip filter using by coupled stripline resonator. The microwave multilayer chip filter operating at 700[MHz] is fabricated and designed. The size of microwave multilayer chip filter is 4.5×4.4×1.8[mm]. Insertion loss and center frequency of the fabricated chip filter are 2.58[dB] and 692.5[MHz] respectively. The center frequency was lower 7.5[MHz] than design result, but other characteristics of chip filter were similar to the results of simulation.

반응성 DC sputtering법으로 제조한 AIN박막의 수소첨가효과

김지균,김민석,권정열,이헌용 明知大學校 産業技術硏究所 2000 産業技術硏究所論文集 Vol.19 No.-

In GaAs devices, the development of a finer insulator instead of SiO₂to be used the insulator of Si has been made good progress. That, however, is not to be enough. We studied the development of the finer insulator in GaAs devices. The AIN has the characteristics of thermal stability over 2400℃ and resistivity over 10 13 Ω, and superior insulator characteristic to have rate of thermal expansion(a=4.2x10 -6, b=5.3x10 -6/K) similar with SiO₂and GaAs. An AIN has been evaluated good applied insulator for above characteristics in chemical compound. Then, the purpose of this paper is a development of MIS devices using AIN as an insulator, and is to investigate a electrical characteristic changing by H₂addition to AIN. The ratio of H₂addition was established by 5%. The pressure was maintained by 5 mTorr and the DC power was supplied by 150W during the experiment. The H₂addition to AIN may have an effect on diminishing impurities on surface and improves the properties as an insulator to a MIS structures.

1996-1997년 겨울철에 유행한 인플루엔자의 임상역학적 분석 및 원인 바이러스의 분리

김수정,정규영,이용화,기창석,이남용,이상일,김지희 대한감염학회 1997 감염 Vol.29 No.4

목적: 인플루엔자는 매년 겨울 전 세계적인 유행을 일으키는 급성 호흡기 질환으로 높은 이환률과 사망율을 보인다. 국내에서도 1996-1997년 겨울철에 다수의 보고가 있었으나 아직 체계적인 감시가 이루어지고 있지 못하다. 저자들은 이 기간 동안 인플루엔자 바이러스 감염의 역학적 특성과 임상상을 연구하여 인플루엔자 감시의 기초 자료를 제공하고자 하였다. 방법: 1996년 10월부터 1997년 4월까지 삼성서울병원 임상병리과에 인플루엔자 바이러스 배양 검사가 의뢰된 모든 검체를 대상으로 인플루엔자 바이러스의 분리율과 유행 양상, 그리고 환자들의 임상상을 후향적으로 조사, 분석하였다. 결과: 총 461명의 환자로부터 525례의 검체가 의뢰되어 총 98명의 환자로부터 인플루엔자 바이러스가 분리되었다. 인플루엔자 A형은 54명의 소아 환자와 4명의 소아 환자로부터 분리되었다. 아형과 항원 특성 검사를 시행한 31례의 인플루엔자 A형 중 한 예에서 A/Wuhan/359/95 유사주로 확인되었고 12례의 인플루엔자 B형 중 5례에서 B/Guangdong/8/97 유사주로 확인되었다. 인플루엔자의 유행 양상은 3월과 4월 중순, 두 번의 인플루엔자 최고 분리 시점이 관찰되었고, 가장 많은 불리 빈도를 보인 연령층은 인플루엔자 A형의 경우 1세 미만이었고 인플루엔자 B형의 경우 3-5세였으며 폐렴이 가장 흔한 호흡기 질환이었다. 결론: 저자들은 3차 의료기관에서 분리된 인플루엔자 바이러스에 대한 역학적, 임상적 특성을 연구하였다. 지역사회에 대한 광범위한 연구가 아니므로 국내의 전반적 상황과는 차이가 있을 것으로 생각되지만 우리나라에서도 인플루엔자 바이러스의 이환률이 낮지 않을 것으로 생각되며, 보다 조직적이고 전국적인 인플루엔자 감시가 이루어져야 할 것으로 사료된다. Background: Although influenza has been a leading cause of global morbidity and mortality, we have few data regarding the epidemioloical and clinical characteristics of influenza activity in korea. Since an outbreak of influenza was recognized during winter of 1996-1997, we analysed the epidemiological and clinical features of influenza activity in the hospital seeting. Methods: All clinical specimens requested for isolation of influenza virus at Samsung Medical Center from October 1996 to April 1997 were included. Mardin-Darby canine kidney (MDCK) cell line was used for virus culture. Isolated viruses were confirmed with immunostain followed by subtyping. The demograpic and clinical characteristics of the patients were reviewed retrospectively. Results: Ninety eight influenza viruses were isolatd from 461 patients (21.3%). Influenza A and B virus were isolated from 58 (54 children and 4 adults) and 40 pediatric patients, respectively. One of 31 influenza A viruses was confirmed as A/Wuhan/359/95-like strain and 5 of 12 influenza B viruses were confiremd as B/Guangdong/8/97-like strains. Two distinctive peaks of influenza activity were recognized and the most common age of patients was less than 1 year for influenza A, and 3 to 5 years for influenza B. Common lower respiratory infections were pneumonia followed by croup, bronchiolitis and laryngitis. Conclusion: We analyzed the epidemiological and clinical features of influenza activity during winter of 1996-1997. Although this study was performed not in the community but in the hospital setting, the morbidity caused by influenza may not be low in Korea. Therefore, nationwide surveillance for influenza activity is warranted.

운동형태의 차이가 Alloxan유발 당뇨쥐의 혈당 및 인슐린 농도에 미치는 영향

윤진환,정일규,김종오,이희혁,지용석,오봉석,채정룡 대한스포츠의학회 2003 대한스포츠의학회지 Vol.21 No.1

The Purpose of this study was to investigate the effect of exercise intensity on blood glucose and insulin levels in diabetic rats with alloxan. Twenty sprague-dawley male rats were assigned to power training groups(n=10) and endurance training groups(n=10). Diabetes was induced by single injection of alloxan(50 mg/kg B.W) Blood glucose and insulin were determined every week for 4-weeks. The conclusion of this study follows as below: 1) There was significantly different on blood glucose levels in two groups. 2) There was significantly different on insulin levels in two groups These results suggest that proper exercise intensity in diabetic rats can significantly decrease blood glucose and insulin level and make good glycemic control. In conclusion, it has been found that regular prolonged endurance training with diabetic rats, improves insulin and blood glucose.

Exercise is an antigen for vaccination: first series of scientific evidence

Yong-Seok Jee 한국운동재활학회 2019 JER Vol.15 No.3

Injury survey in Choi Kwang Do (CKD) martial art practitioners around the world : CKD is a safe form of training for adults

Yong-Seok Jee,Denny Eun 한국운동재활학회 2018 JER Vol.14 No.1

Among the many sports and activities to choose from, martial arts are becoming increasingly popular for health and fitness. Due to the differ-ent nature of the various styles of martial arts, injuries are not uncom-mon. Though there have been studies on the injury rates of several martial art styles, there have been none regarding Choi Kwang Do (CKD), a noncompetitive martial art with relaxed and fluid movements designed to promote health and fitness for people of all ages. The pur-pose of this study was to examine the rate of injury for adults training in CKD to find out whether this is a safe style of martial art for adults. This study found the prevalence, causes, severity, and types of injuries from CKD practitioners around the world through an online survey targeting adults (n=122), aged 18 or older, with varying years of training experi-ence. The annual rate of injury was 11.73 for every 100 CKD practi-tioners. There was no correlation between the length of training experi-ence and injury. Training frequency and duration had no significant re-lationship with injury rates. A significant positive relationship between training intensity and injury existed (P=0.009). The results of the study found that CKD can be an attractive option for adults of any age who are looking to learn a martial art or choose a physical activity with a low risk of injury, however the training intensity should be kept at a level that is not excessively high.

Exercise rehabilitation in the fourth industrial revolution

Yong-Seok Jee 한국운동재활학회 2017 JER Vol.13 No.3

Exploring the history of exercise rehabilitation for the expansion of future rehabilitation projects

Yong-Seok Jee 한국운동재활학회 2023 JER Vol.19 No.4