달리기 시 언어적 지시가 충격감소 및 동작 변화에 미치는 영향

이영성 ( Young-seong¸ Lee ),박상균 ( Sang-kyoon Park ) 한국체육대학교 체육과학연구소 2021 스포츠사이언스 Vol.39 No.3

본 연구는 달리기 시 언어적 지시에 따른 충격 감소 효과를 검증하고, 이에 따라 변화되는 신체의 전략을 분석하는 것이 목적이다. 건강한 20대 남성 10명(나이: 30.20 ± 4.76 yrs., 신장: 174.90 ± 4.36 cm, 체중: 73.80 ± 10.25 kg)을 대상으로 3.1 m/s 로 트레드밀 달리기를 수행하였다. 달리기 시, 언어적 지시(지시: 달리기 시 하지에 충격을 최대한 감소하도록 달려주세요) 유무에 따른 차이를 비교하기 위해 보행변수와 운동학적 변인, 운동역학적 변인을 산출하여 대응표본 t-test (paired t-test)를 실시하였다. 언어적 지시 시, 보폭 길이와 보폭 시간, 지지시간은 증가하였으며, 착지-이지 구간에서의 수직 신체 질량 중심의 높이는 감소하였다(p<.05). 착지 시 발목과 엉덩관절각의 굽힘 각과 최대 무릎 굽힘 각은 증가하였으며, 이지 시 무릎 굽힘 각도 증가하였다(p<.05). 모든 충격 변인인 충격력과 충격부하율은 감소하였으며, 착지 시 발목과 엉덩관절 모멘트는 증가, 착지 시 무릎 모멘트와 이지 시 무릎 관절 모멘트는 감소되었다(p<.05). 본 연구결과 언어적 지시를 통한 달리기 시충격감소의 효과는 증명되었고, 이에 따른 신체 전략도 분석되었다. 그럼에도 불구하고 대상자의 신체적, 기술적 조건과 달리기 시 외부적 조건 (예: 속도와 거리, 노면조건 등) 등을 고려한 언어적 지시가 필요하며, 이에 따라 변화되는 충격 기전을 이해 할 필요가 있다고 판단되어진다. The purposes of this study were to investigate the effects of verbal instruction to reduce the impact during running and identify its related mechanism of the body strategy. Ten healthy male in their 20s (age: 30.20 ± 4.76 yrs, height: 174.90 ± 4.36 cm, weight: 73.80 ± 10.25 kg) participated in treadmill running at a speed of 3.1 m/s. To compare the differences according to with and without verbal instruction (instruction: run with taking the less shock in lower extremity), a paired t-test was performed by calculating the gait variable, kinematic variable, and kinematic variable. After a verbal instruction to the subjects, they increased stride length, stride time and contact tim with decreased the height of vertical center of mass during running (p<.05). The flexion angles of the ankle and hip joint at heel contact increased, the maximum knee angle increased, and the knee flexion angles at toe off increased (p<.05). All impact variables, impact force and impact load rate, decreased, and ankle and hip joint moments at heel contact increased, knee moment at heel contact decreased, and knee joint moment at toe off decreased(p<.05). In conclusion, although verbal instruction has been effective to reduce impact, it is still required to consider physical characteristics and skill levels of runners under different running conditions such as speed and distance of running as well as surface characteristics in order to understand the relationship between verbal instruction and impact during running.

TaqMan 실시간 중합 효소 연쇄반응에 의한 살모넬라속의 검출 및 ompC 항원단백 유전자의 비교

이영성,최경성,김명철,한재철,채준석,Lee, Young-Sung,Choi, Kyoung-Seong,Kim, Myeong-Chul,Han, Jae-Cheol,Chae, Joon-Seok 대한수의학회 2002 大韓獸醫學會誌 Vol.42 No.4

Antigenic ompC genes of S. gallinarum, S. pullorum and S. dublin were characterized among Salmonella spp. isolated from chickens and other animals to identify genetic variation. Salmonella ompC gene fragment (1,027 bp) was amplified by PCR and the amplicons were cloned for comparison of nucleotide sequences. The identity of the sequences between S. gallinarum and S. pullorum, S. gallinarum and S. dublin, S. pullorum and S. dublin was 99.8%, 97.6% and 97.8%, respectively. Also, we found that ompC has some diversity between S. gallinarum and S. pullorum, and other Salmonella spp. which may be useful to type the organisms. Similar to diagnosis in other organisms, the TaqMan PCR method can be applied to rapid and accurate diagnosis of salmonellosis in chickens and other animals. We designed PCR primers and TaqMan probe for flagellin gene (fliC) for detection of Salmonella spp. by TaqMan PCR. The TaqMan PCR method was 10,000 times more sensitive than conventional PCR.

한 농촌지역에서 실시한 소아 급성호흡기감염 관리사업의 평가

이영성(Young Seong Lee),김창엽(Chang Yup Kim),김용익(Yong-Ik Kim),신영수(Young Soo Shin),고재욱(Jae Wook Ko) 한국농촌의학 지역보건학회 1993 농촌의학·지역보건 Vol.18 No.2

RSM을 이용한 유량 측정의 불확정성 영향인자 분석

홍성조 ( Seong Jo Hong ),임창복 ( Chang Bok Lim ),서권옥 ( Kwon Ok Seo ),이영성 ( Young Sung Lee ),이정환 ( Jung Hwan Lee ),한성욱 ( Sung Wook Han ),임병진 ( Byung Jin Lim ),김갑순 ( Kap Soon Kim ) 한국물환경학회 ( 구 한국수질보전학회 ) 2012 한국물환경학회·대한상하수도학회 공동 춘계학술발표회 Vol.2012 No.-

의료관리학 실습교육과정 개발 및 평가

신영수(Young Soo Shin),김용익(Yong Ik Kim),이영성(Young Seong Lee) 한국의학교육학회 1992 Korean journal of medical education Vol.4 No.2

Importance of health policy and management in medical education is gradually accepted. Successful model of the curricula of health policy and management education in Korean is, however, yet be to deve loped. This paper describes the curriculum development process and its evaluation of an exercise course on the field of health policy and management. The curriculum is focused on those issues that are important to medical education such as small group dynamics, problem-based active learning, communication skills, attitudes, team work and leadership skills, and scientific way thinking. The student are expected to develop the ability and attitute through this course such as the appreciation of the concepts and the major tasks of health care, and the appreciation of the importance of establishing a collaborative interpersonal relationship with the medical personnels. Formats for the exercise are 1) analysis of data on the health services through the structured questions, 2) role play, 3) project and presentation, and 4) panel discussion. 70.5% of students appraised these formats of clerkships are necessary in medical education process. Students achievement of each objectives are variable, but affirmative in general. Although some unsatisfactory aspects are exist, the clerkships are helpful and satisfactory in general. It provided with the opportunity for problem solving by themselve to the students, encouraged the team-spirit and motivation, and stimulate critical way of thinking.

한국형 진단명기준환자군의 개발과 평가: 입원환자의 의료서비스 이용을 중심으로

신영수,이영성,박하영,염용권,Shin, Young-Soo,Lee, Young-Seong,Park, Ha-Young,Yeom, Yong-Kwon 대한예방의학회 1993 Journal of Preventive Medicine and Public Health Vol.26 No.2

With expanded and extended coverage of the national medical insurance and fast growing health care expenditures, appropriateness of health service utilization and quality of care are concerns of both health care providers and insurers as well as patients. An accurate patient classification system is a basic tool for effective health care policies and efficient health services management. A classification system applicable to Korean medical information-Korean Diagnosis Related Groups (K-DRGs)-was developed based on the U.S. Refined DRGs, and the performance of the developed system was assessed in this study. In the process of the development, first the Korean coding systems for diagnoses and procedures were converted to the systems used in the definition of the U.S. Refined DRGs using the mapping tables formulated by physician panels. Then physician panels reviewed the group definition, and identified medical practice patterns different in two countries. The definition was modified for the differences in K-DRGs. The process resulted in 1,199 groups in the system. Several groups in Refined DRGs could not be differentiated in K-DRGs due to insufficient medical information, and several groups could not be defined due to procedures which were not practiced in Korea. However, the classification structure of Refined DRGs was retained in K-DRGs. The developed system was evaluated fur its performance in explaining variations in resource use as measured by charges and length of stay(LOS), for both all and non-extreme discharges. The data base used in this evaluation included 373,322 discharges which was a random sample of discharges reviewed and payed by the medical insurance during the five-month period from September 1990. The proportion of variance in resource use which was reduced by classifying patients into K-DRGs-r-square-was comparable to the performance of the U.S. Refined DRGs: .39 for charges and .25 for LOS for all discharges, and .53 for charges and .31 for LOS for non-extreme discharges. Another measure analyzed to assess the performance was the coefficient of variation of charges within individual K-DRGs. A total of 966 K-DRGs (87.7%) showed a coefficient below 100%, and the highest coefficient among K-DRGs with more than 30 discharges was 159%.

입원과 수술시행의 적정성 평가

김창엽,안형식,이영성,권영대,김용익,신영수,Kim, Chang-Yup,Ahn, Hyeong-Sik,Lee, Young-Seong,Kwon, Young-Dae,Kim, Yong-Ik,Shin, Young-Soo 대한예방의학회 1992 예방의학회지 Vol.25 No.4

The aim of this study was to evaluate the appropriateness of some kinds of surgery and admission, such as cesarean section (C/S), cholecystectomy, and pediatric pneumonia. For appropriateness evaluation, we ourselves developed some criteria, which were included in the category of explicit and linear criteria, with the assistance of specialists of relevant clinical field. The evaluation of appropriateness was performed by two family physicians. The major findings were as follows: 1. For cesarean section, 77.6% of deliveries were determined to be 'appropriate', but the level of appropriateness was not significantly different among hospitals and between hospital groups by size. The most freqeunt indication of C/S was repeated operation, followed by cephalopelvic disproportion (CPD). The labor trials for vaginal delivery among repeated C/S and CPD cases were performed in 24.5% of pertinent deliveries. 2. About 73.8% of cholecystectomy cases was appropriate to one of the surgical indications, without significant differences among hospitals. Of surgical indications, 'sufficiently frequent and intense symptom recurrence' was the most frequent, and 'confirmed acute cholecystitis' was the second. 3. Of children admitted due to pneumonia, only 57.4% of cases satisfied admission criteria, and the level of appropriateness of admission was different among hospitals. The common reasons fur admission were 'failure to initial treatment', 'suspected bacterial pneumonia', 'young infant', etc. We could find that there were differences of quality among hospitals in some procedures, especially in the pediatric pneumonia and labor trial before C/S, which suggested that the implementation of quality assurance activiteis would be necessary in this country. In this study, we used some simple and primitive research tools and the numbers of subjects and tracer procedures were limited. So advanced studios with plentiful subjects and more representative diseases or procedures should be tried.

개원의의 소아 급성호흡기질환에 대한 항생제 처방양상에 관한 연구

이영성,김명기,김용익,신영수,이환종,안형식 대한보건협회 1991 대한보건연구 Vol.17 No.2

The purpose of this study is to evaluate the patterns of antibiotic prescriptions for acute respiratory infections (ARI) in children: such as prescription rate and appropriateness of antibiotics prescribed by clinical practitioners in Korea. Clinical cases selected for this study include common cold, viral croup, bacterial pneumonia, pharyngitis and two others. For this study, a sampling was made, which encompasses all of the private practitioners in one district of Seoul city. It also includes some pediatric professors in medical colleges as a control group. And then the self-administrative questionnaires were handed out to the selected samples(178 practitioners). 174(97.7%) practitioners responded and among them 68(39.1%) who were practicing pediatric cases were validly analyzed. The study results are as follow: 1. The antimicrobial prescription rate of private practitioner group was in general higher than that of professor group, while difference among the specialties did not exist. 2. The appropriateness of antibiotic prescription was 88.9% and 25.0% respectively in professor and private practitioner group in case of common cold, for which the antibiotic prescription is not approved by WHO prescription protocol. 3. Both the private practitioner and the professor groups prescribed most frequently broad spectrum penicillin derivatives (usually ampicillin). The former group quite frequently prescribed aminoglycoside(28.4%. and 27.6% respectively in case of viral croup and bacterial pneumonia), while the latter group did not. Also the study results showed that the private practitioners, relative to the professor group, tend to prefer the antibiotics for injection, such as the aminoglycoside. 4. The non-pediatrician and the general practitioner groups prescribed expensive reserved antibiotics(3.8% and 5.8% respectively in case of common cold), while the pediatricians did not at all. 5. The prescription patterns of combined antibiotics were similar to the patterns of antibiotics for injection. The study results provides many aspects of understanding about medical care behaviour in private practice settings, which are of major domain for primary health care. In order to overcome some design limitations in sampling and case selection of this study, further researches on this topic may be followed, including analysis of behavioural factors affecting drug prescription on both providers' and consumers' parts.

일부 다빈도 입원 및 수술례에서 항생제 사용의 의료기관별 처방실태와 적정성에 관한 연구

신영수,김용익,이영성,김창엽,최강원,이환종 대한감염학회 1992 감염 Vol.24 No.4

The purpose of this study is to probe the patterns of antibiotic prescriptions among the hospitals in Korea; such as drug cost, prescription rate, duration and appropriateness. Five clinical cases which are Cesarean section, appendectomy, cholecystectomy, cataract extraction, and pediatric pneumonia, were selected for this study. The selected clinical cases were sampled from the medical insurance claim bills (total 2,136 cases) and medical records(total 414 cases). The prescribing variation of the hospitals (total 70) were analysed as the frame of hospital bed size (tertiary hospital, general hospital (A, B), hospital) and their ownership (public tertiary, private tertiary, public general, private general private). The results are as follows; 1) The consumption pattern, proportion of antibiotics in total drug cost, showed significant difference among hospital groups. For example, the proportion of antibiotic cost in pediatric pneumonia was highest hospital group A(28.1%). 2) The prescription rate of general antibiotics ranged from 96.5% to 100%. For the reserved antibiotics, The rate was 74.7% in cataract extraction, 66.5% in Cesarean section, 62.6% in cholecystectomy, 51.6% in appendectomy and 42.0% in pediatric pneumonia. The rate also varied significantly among hospitals. The variation of inter-hospital groups was highest in pediatric pneumonia. The general hospital B and the private tertiary hospital groups prescribed the reserved antibiotics more frequently. 3) In all cases, the average duration of antibiotic administration was more than five days, which was differ little from average length of stay (ALOS) of each cases. For example, the mean durations of Cesarean section and cholecystectomy were 6.9 and 14.3 days respectively, while the ALOS of this cases were 8.8 and 15.7 days. Most of the prescribed antibiotics were not therapeutic, but prophylactic. 4) Considering the principles of prescribing prophylactic antibotics, these findings on the pattern of antibiotic prescription, especially on the aspects of prescription rate, duration, and its variation among the hospitals have particular significance for the quality of hospital care. The results of this study imply a strong probability of antibiotic over-utilization, which lead to the following perspectives. First, well designed further research on this topic should be followed, including analysis of behavioral factors affecting the drug prescription. Second, it is necessary to develop quality improvement programs such as drug utilization review for the proper and efficient use of antibiotics.

이중에너지 방사선 흡수 계측기의 장비간 골밀도 호환식에 따른 한국 성인여성이 연령별 골밀도 정상치

정유석,이영성 대한가정의학회 1999 Korean Journal of Family Medicine Vol.20 No.9