지지면의 경사별 초보자의 퍼팅 스트로크 동작 분석

송재철 ( Song Jaecheol ),전경규 ( Jeon Kyoungkyu ),안세지 ( Ahn Seji ),김규완 ( Kim Kewwan ) 인천대학교 스포츠과학연구소 2019 스포츠科學硏究誌 Vol.32 No.0

이 연구는 경사의 차이가 초보자의 퍼팅 스트로크 동작에 어떤 영향을 미치는지를 규명하였다. 연구 목적 달성을 위해 인천광역시 소재 때학교의 재학생 중 골프 수업을 경험한 초보자 19명을 연구대상으로 선정하였으며, 모집된 연구대상자들은 0%의 평지와 5% 내리막 경사에서 3m 거리의 퍼팅을 실시하였다. 이때 퍼팅 시 하지 관절의 각도와 압력중심을 경사면에 따라 비교하였다. 변인 측정을 위하여 지면반력기 2대와 동작분석 카메라 8대 및 동작분석 프로그램을 사용하였다. 경사에 따른 퍼팅 스트로크의 차이를 분석하기 위해 수집된 자료는 Windows용 SPSS 23.0을 이용하여 대응표본 t 검정(paired samples t-test)으로 분석하였다. 분석결과 하지관절 중 발목관절에서 자세조절을 위해 5% 경사 퍼팅 시 0% 퍼팅에 비해 유의하게 저측굴곡 각도가 크고 내번각도가 작은 것으로 나타났다. 양측 하지의 압력중심의 경우 경사에 따라 전, 후 움직임에서 유의하게 차이가 나타났고 어드레스 시점에서 5% 경사 퍼팅 시 좌측 다리의 압력중심이 뒤로 이동하는 경향이 나타났다. The purpose or this study was to investigate how the differences of the slope affected the putting stroke movement in the beginner golfers. To do so, 19 students who experienced the golf class in I University located in Incheon City were selected as the study subjects. They performed 3 meter-distance putting at the 0% plane surface and 5% downhill slopes, and the angles of lower limb joints, center of mass, and center of pressure were compared in each case, To measure the variables, two ground reaction force detectors and 8 cameras for movement analysis were used. Paired samples t-test was used to test the putting stroke difference by the slope using SPSS 23.0 for Windows with the collected data. Upon the study results, all the angles of lower limb joints showed the significant differences between 0% and 5% slope angle. At 5% slope angle, joint angles were controlled for posture control, especially eversion angle and flexion angle of the knee joint. Significant difference in the center of pressure of both legs was found on the posterior and anterior movements according to the slope. Center of pressure in the left leg was moved to the back when the slope was 5% at the address posture.

산소분압에 따른 일산화탄소 중독 흰쥐의 산소유리기 반응

송재철(JaeCheol Song),김수근(Soo-Geun Kim),조진아(Jin-A Cho),이수진(Soo-Jin Lee),박항배(Hung-bae Park) 한국항공우주의학협회 1998 항공우주의학회지 Vol.8 No.1

공중 근무자들의 체중 변화 및 변이 양상이 순환기 질환 위험요인에 미치는 영향

이원근(Won keun Lee),송재철(Jaecheol Song),최보율(Boyoul Choi),이용호(Yong Ho Lee),박항배(Hung-bae Park) 한국항공우주의학협회 1996 항공우주의학회지 Vol.6 No.1

일산화탄소 중독시 고압산소가 가토의 심전도상에 미치는 영향

김영열(Youngyeul Kim),이수진(Soojin Lee),송재철(Jaecheol Song),김정현(Junghyueon Kim),이용호(Yongho Lee),박항배(Hungbae Park) 한국항공우주의학협회 1996 항공우주의학회지 Vol.6 No.2

우리나라 생명보험분쟁과 관련된 의학적 문제 : (인보험분쟁심의 자료를 중심으로)

송재철,박항배 한양대학교 의과대학 1988 한양의대 학술지 Vol.8 No.2

To see the medical problems related to the life insurance, we reviewed 720 materials for deliberations which put on the "Life Insurance Arbitration Committee, Korea Insurance Corporation". Since the conflicts of interest, the debates on the duty of representation of the insureds are the most frequent problems between the insurers and the relatives of insureds. And the medical examinations at an life insurance contracts have little profit to settle the debates on the duty of representation and other problems. The autopsy is essential to identify whether the death is due to the casualty or not, and to find out the causality between the cause of death and the disease not represented at the insurance contract, so it should be applied to the field of life insurance. To prevent the complaints about the grade of disability, the life insurance policy should be fully introduced to the insureds, and/or it may be needed to get rid of the policy differences among various insurances. In addition, it should be considered that the insureds complains about the negligences of the insurers.

한 지역사회에서의 B형 간염양상에 대한 혈청역학적 연구 : It's Prevalence, Familial Aggregation and Effects of Vaccination

고응린,박항배,송재철,최보율 한양대학교 의과대학 1990 한양의대 학술지 Vol.10 No.1

Hepatitis B virus(HBV) infection is considered as one of the most serious infectious diseases in Korea because of it's high prevalence and association with liver cirrhosis and primary hepatocellular carcinoma. Many epidemiological studies on this disease have been carried out, and discovered some findings such as the prevalence and incidence rate, risk factors, transmission routes and natural history of HBV infection. But, a lot of controversies still remaines on the epidemiological characteristics and the management strategy for HBV infection. The objects of this study are 1) to estimate positive rate of HBV serologic markers and infection rate, 2) to investigate familial aggregation, 3) effects of vaccination in a rural community. Study subjects were 905 persons (2-85 years old) living in a typical rural community. Three serologic markers(HBsAg, Anti-HBs and Anti-HBc) were examined and tested by radio-immunoassay (RIA). Supplemental informations were collected through self-administered questionnaire and interview survey on age, sex, familial relationship, history of vaccination, clinical experience of hepatitis and existence of liver diseases in family. The results are summarized as follows. 1. Among non-vaccinees, HBsAg positive rate was 6.48%(48//741) and there was no statisticallysignificant difference by age and sex groups. Anti-HBs and Anti-HBc positive rates and infection rate were 45.88% and 54.39% respectively. The rates inmale were higher than in female, but the differences were statistically not significant. The rates showed a trend of continuous increase as the age increased. 2. Among four serologic profiles with positive HBsAg, the most frequent was type II(positive HBsAg & Anti-HBc, negative Anti-HBs; acute or chronic HBV infection state - 3.78%). Among three possible serologic profiles with negative HBsAg, the most frequent was type V(negative HBsAg, positive Anti-HBs & Anti-HBc; recovery phase of HBV infection - 35.49%). Apparent infection rate was estimated to 4.35% under some assumptions. 3. In the distribution of HBsAg positive subjects in family unit, familial aggregatio was not observed against our expectation(from the estimation by binominal distribution). But in the distribution of infected persons, however, familial aggregation were observed. When positive rates of three serologic markers and infection rate were compared, there was clustering between mother and children and among sibilings, but not between the spouses and between father and children. So, vertical transmission was considered as an important route among family members. 4. Overall vaccination rate was 18.12%(164/905); higher in male(21.55%) than female(15.06%). The vaccination rate in younger age groups(e.g. 2-9 years group; 41.46%) were higher in older groups. The results reflects reflect the serious concern of community residents on HBV infection. 5. HBsAg positive rate of vaccinates was 5.49% which was not statistically different from non-vaccinees(6.48%). Anti-HBs and Anti-HBc positive rate of vaccinees were 70.12% and 30.49%, respectively. These results suggest that there is some defects to be improved in present vaccinatin program in rural community. For the efficient vaccination program, 1) it is necessary of randomized controlled trial in a community for HBV vaccine and cost-benefit analysis for various stategy of vaccination, 2) the test for HBV serologic markers must be examined to select eligible persons for vaccination, except infant or pre-school age group, 3) the educational program for community residents should be in operation continuously to give accurate informations on HBV infection and it's management.

포름알데하이드에 폭로된 해부학 실습 학생들의 임파구 자매염색분체교환

백두진,주수자,김기영,이수진,심상효,손정일,심성한,송재철,조율희 大韓産業醫學會 1998 대한직업환경의학회지 Vol.10 No.2

Sister-chromatid exchanges measured in the peripheral lymphocytes of 15 non-smoking medical students after exposure to formaldehyde during 24-week anatomy class showed a small but significant (p=0.0468) increase when compared with samples obtained from the same individuals immediately before exposure. Mean frequencies of sister-chromatid exchange of cultured peripheral lymphocytes were 5.40±0.24 from the samples before exposure and 5.87±0.22 from the same samples after exposure. Breathing-zone air samples collected by formaldehyde monitoring kit with digital colorimeter(SKC) showed a mean concentration of 0.72±0.02 ppm formaldehyde.