신체활동이 지체장애인의 자아정체감에 미치는 영향

유건성(Geon Sung Yoo),변재훈(Jae Hoon Byeon) 한국체육교육학회 2009 한국체육교육학회지 Vol.14 No.1

The purpose of this study was self-identity of individuals with physical disabilities participating in physical activity. Subjects included 198(male: 143 female: 58) with individuals with physical disabilities. The questionnaire that was developed by Park Ah-Chung(1996) was used self-identity scale of Korean. It was revised by Lee Sung-Guk(1999) which consisted of 6 factors, 48 items. Construct validity of the instrument was checked by Factor analysis. Reliability of questions was confirmed by Cronbach`s α value(.783). The data analysis were Independent t-test, one-way ANOVA, and multiple regression analysis. The results were as follows; First, job and incomes had significant effects on self-identity of individuals with physical disabilities. Second, physical instructors, mass media, and friends had significant effects on self-identity of individuals with physical disabilities. Third, physical activity period, group exercise, and athletes with disabilities had significant effects on self-identity of individuals with physical disabilities. Fourth, high understanding of disability traits significant difference than low understanding of disabilities traits on self-identity of individuals with physical disabilities. These results implied that individuals with physical disabilities participation in physical activity had significant effects on their self-identity according to socio-demographic variables, significant other, type of physical activity, participation type of physical activity, and understanding of disability traits.

소음 노출 남성 근로자에서의 청력저하와 혈청 마그네슘의 관련성

박완섭,이종영,정상재,유재영,최태성,홍성철,노성찬 大韓産業醫學會 2000 대한직업환경의학회지 Vol.12 No.1

목적 : 본 연구는 소음에 노출된 남자 근로자를 대상으로 장기간 소음 폭로가 혈청 마그네슘의 농도와 관련이 있는지를 검정하고 이러한 혈청 마그네슘의 농도가 또한 청력저하와 관련이 있는지를 파악하기 위하여 수행되었다. 방법 : 소음에 노출되는 178명의 연구대상자를 청력저하의 정도에 따라 세 그룹으로 분류하고, 구조화된 설문, 신체계측, 혈액검사 등으로 청력저하에 대한 감수성 요인과 혈청 마그네슘 등을 수집하고 측정하였으며, 대상자들의 청력 역치를 측정하기 위하여 청력검사를 실시하였다. 결과 : 본 연구의 결과를 요약하면 다음과 같다. 첫재, 청력저하에 관련된 개인의 감수성 인자라고 알려진 변수인 흡연유무, 나이, 혈압, 헤마토크리트, 콜레스테롤, 혈당 중에서 나이, 이완기 혈압이 단순분석에서 세 그룹간에 차이가 있었고(p〈0.05), 혈청 마그네슘의 농도 또한 세 그룹간에 통계적으로 유의한 차이가 있었으며(p〈0.05) 청력저하가 심할수록 혈청 마그네슘 농도는 낮아지는 경향을 보였다. 둘째, 그룹간의 소음 노출력은 차이가 있었지만 (p〈0.05) 청력보호구 착용상태에는 유의한 차이가 없었다. 셋째, 혈청 마그네슘 농도에 영향을 줄 수 있는 변수인 소음 노출 기간, 마그네슘 함량이 많은 음식의 섭취정도, 스트레스 수준 중에서 소음 노출기간이 혈청 마그네슘 농도와 유의한 상관관계를 보였고(p〈0.05) 노출기간이 길수록 마그네슘의 혈청농도는 낮아지는 경향을 나타내었다. 넷째, 주파수별로 청력저하와 관련된 감수성 요인들에 대한 다중회귀분석 결과 주파수 1,000 Hz에서는 연령이 좌,우측 귀 모두에서 유의한 변수로 채택되었으며 (p〈0.05), 연령이 증가할수록 청력저하가 심해지는 경향을 보였고, 주파수 4,000 Hz에서는 확장기 혈압, 소음 노출 기간, 혈청 마그네슘 등이 청력저하에 대한 감수성 요인으로 채택되었으며(p(0.05), 이완기 혈압이 높을수록, 소음노출 기간이 길수록, 혈청 마그네슘의 농도가 낮을수록 청력저하가 심해지는 것으로 나타났다. Objectivea : This study was conducted to investigate that the chronic noise exposure is associated with decreased serum magnesium concentrations and evaluate whether decreased serum magnesium is associated with noise induced hearing loss. Methods : One hundred seventy-eight male workers exposed to noise were selected and classified three groups by the degree of hearing loss. Hearing threshold levels were less than 30 dB at 1,000 Hz or less than 40 dB at 4,000 Hz In group I, more than 30 dB at 1,000 Hz or more than 40 dB at 4,000 Hz and 15 dB and less of pure tone average[PTA : (500 Hz+l,000 Hz+2,000 Hz)/3] in group II, more than 30 dB at 1,000 Hz or more than 40 dB at 4,000 Hz and over 15 dB of PTA in group III. Results : Serum magnesium concentrations were 2.42±0.26 mg/dl in group 1, 2.35±0.23 mg/dl in group n , 2.26±0.24 mg/dl in group II, respectively and significantly differ-ent between group I and group III (p〈0.01). It was negatively correlated with duration of the noise exposure as correlation coefficient (r) of -0.194 (p(0.05) . Analysis of the multipleregression on hearing threshold levels showed that serum magnesium, diastolic blood pres-sure, duration of the noise exposure were statistically significant at 4,000 Hz (p(0.05) . While only age was statistically significant at 7,000 Hz (p(0.05) . Conclusions : These results suggest that chronic noise exposure may induces decreasein serum magnesium concentrations and that its decreased concentration is related with noise induced hearing loss.

심근 수축성에 미치는 수소이온의 농도

유재상,이복희 충남대학교 의과대학 지역사회의학연구소 1985 충남의대잡지 Vol.12 No.1

The effects of extracellular pH changes on excitation-contraction coupling were studied in isolated rabbit papillary muscles. All experiments were performed in nonbicarbonate-buffered Tyrode solution, using phosphate buffer system for acidosis (pH 7.0, 6.4 or 6.0) and Tris buffer system for alkalosis (pH 7.8), which was aerated with 100% O_2 and kept at 35℃. Action potentials were measured by conventional microelectrode technique in the papillary muscles. The slow response action potentials (SRAP) were induced by superfusing the muscles to a Tyrode solution containing 27 mM KC1 and 10^-5M histamine and stimulating them with slow and intense stimuli (from 0.5 Hz, 5 V to 0.1 Hz, 20V). The results obtained were as follows; 1. Acidosis elicited a degree-dependent negative inotropic effect, whereas alkalosis induced a positive inotropig effect. The increase in isometric tension at pH 7.8 was 150%, compared to that at normal pH, but the decrease at pH 6.4 was about 50%. 2. The acidosis-induced depression of contractility was restored rapidly to normal level by the addition of Ca^2+ to the Tyrode solution or administration of agonists, histamine (10^-5M) or norepinephrine (10^-6M). 3. The parallel changes in resting membrane potential (depolarization) and overshoot, and the obvious shortening of action potential duration were observed after a change from control solution to the alkalotic Tyrode solution (pH 7.8). In acidosis (pH 7.0), however, the parallel declines in resting membrane potential (hyperpolarization) and overshoot were observed, and the duration was almost no changed. 4. SRAP, which were eliminated by Ca^2+ antagonists (verapamil or Mn^2+), were potentiated in amplitude and duration at high pH 7.8, but inhibited obviously at low pH 6.4. The results of this experiment suggest that the alteration in cardiac contractility by extracellular pH change is due to the influence upon slow inward Ca^2+ current.

조기재취업수당제도의 재취업촉진 효과

유길상,성재민 한국사회보장학회 2005 사회보장연구 Vol.21 No.2

조기재취업수당제도는 한국의 고용보험제도의 특징을 보여주는 대표적인 제도 중의 하나이다. 본 논문은 한국의 고용보험제도의 운용과정에서 조기재취업수당제도가 실업급여 수급자에 대한 조기재취업 촉진제도로서의 당초 의도한 효과를 발휘하고 있는지를 실증자료를 이용하여 분석하고 있다. 조기재취업수당에 대해 알았던 응답자를 대상으로 조기재취업수당제도가 조기재취업에 도움을 주었는지를 질문한 결과 조기재취업수당제도가 실업급여 수급자의 조기재취업을 촉진하는데 어느 정도 긍정적인 효과가 있는 것으로 나타났다. 분석모형을 통한 결과도 조기재취업수당 제도가 구직급여 평근수급기간을 단축시키는 효과가 있음을 보여주고 있다. 조기재취업수당 제도가 있다는 것을 알고 있었던 사람들의 재취업 위험률은 모르고 있었던 사람들에 비해 매칭(matching)을 안 했을 때 약 2.5배, 매칭을 했을 때 약 2.94배 정도 높은 것으로 분석되었다. 구직급여 평균수급기간을 종속변수로 놓고 직접적인 분석을 해 보았을 때는 매칭을 안했을 때 분포의 평균에서 25.2일, 매칭을 했을 때 31.1일 정도 구직급여 평균수급기간을 단축하는 효과가 있는 것으로 나타났다. The Early Reemployment Bonus System is one of the characteristics of the Korean Employment Insurance System which focuses preventing abuse of unemployment benefits and encouraging active job search and participation in vocational training of the recipients of unemployment benefits. This paper analyzes the effects of the Early Reemployment Bonus System on activating the job search efforts of the recipients of unemployment benefits and thereby encouraging early reemployment in Korea. The data used in this analysis is the follow-up survey on recipients of unemployment benefits done by the Korea Labor Institute in 2004. Those who knew the Early Reemployment Bonus System out of recipients of unemployment benefits in the period from March to May in 2003 responded that the Early Reemployment Bonus System had to some extent positive effect in inducing their active job search activities. The results of statistical analysis also showed the Early Reemployment Bonus System significantly reduced the unemployment spell of the recipients of the Early Reemployment Bonus.

運動適性에 따른 體力年齡에 관한 硏究 (Ⅰ) : 家庭主婦들을 中心으로 In the case of housewives in Pusan city

兪昌在,朴相甲 新羅大學校 1985 論文集 Vol.19 No.-

The purpose of this study is to compare the state of physical fitness age with that of chronological age in the case of housewiues aged from 30 to 49 years who live Pusan city. In order to calculate their ages of physical fitness, they were tested in five items: 1) standing long jump, 2) sit-ups, 3) push-ups, 4)timed shuttle run, 5) 5 minutes distance run. The main resulte obtained are as follows. 1. The percent body is 38.7±6.80% in the age-group of 30∼34 years, 41.7±4.89% in the age-group of 40∼44 years, ±% in the age-group of ∼ 2. The body weight has significant negative relationship with the percent body fat in all age-groups 3. The grade of physical fitness is evaluated to be in the 5th grade in all age-groups, but the 44∼44 age-group is evaluated to be in the non-grade 4. The physical fitness age turned out to be ten years order than the chronological age in average. 5. There is significant negative relationship between the physical fitness age and five test items of physical fitness 6. There is significant negative relationship between the percent body fat and the five test items of physical fitness.

운동선수들의 스포츠 우리성 프로파일

유진,박성제 한국스포츠심리학회 2003 한국스포츠심리학회지 Vol.14 No.3

본 연구는 스포츠 우리성 척도(SWS)를 통해 다양한 변인들(성별, 종목)을 대상으로 한국 운동선수들의 스포츠 우리성 프로파일을 구체화하고, 스포츠 우리성 척도(SWS)가 실제적인 스포츠 상황에서의 예언적 타당성을 소유하고 있는지 여부를 밝혀내는데 그 목적이 있다. 스포츠 우리성 척도(SWS)의 예언 타당도 검증을 위해 남녀 운동선수 462명을 대상으로 하였으며, 이들은 총 26개 개인종목과 8개 단체종목에 속해있는 선수들로서 개인종목선수 252명, 단체종목선수 210명으로 구성되었다. 스포츠 우리성 의식 측정을 위해 스포츠 우리성 척도(Sports Weness Scale ; SWS)가 본 연구에 사용되었다. 수집된 자료들은 스포츠 우리성의 4가지 하위요인들을 종속변인으로 한 다변인 변량분석(MANOVA)을 실시하였다. 선수들의 각 집단에 따른 스포츠 우리성의 차이를 분석한 결과, 성별과 종목별에서 유의한 주효과가 나타난 반면, 성별×종목의 상호작용효과는 나타나지 않았다. 사후 판별분석과 일원변량 F검증을 통해 성별과 종목에 대한 각각의 유의성을 확인하였다. 끝으로 각각의 결과에 대해 한국의 집단성및 우리의식, 개인/집단주의등과 관련하여 논의가 이루어졌다. This study aims to specify the Sports Weness Scale (SWS) for korean athletes through SWS targeting diverse variables such as gender and kinds of sports. Further, the study will investigate whether SWS possesses predictive reasonableness in real sports situations. In order to verify the predictive reasonableness of SWS, this study targeted 462 male and female athletes from 26 individual sports and 8 group sports. The subjects consist of 252 individual sport players and 210 group sports players. In this study, the Sports Weness Scale (SWS) was used to measure the players' awareness of Sports Weness. The collected materials were analyzed by the multiple-way analysis of variance (MANOVA) with four sub factors of SWS as dependent variables. As a result, in order to determine the differences in SWS according to groups where the players belong, a significant effect was shown in gender and kinds of sports while there was no mutual interaction effect was shown in gender and kinds of sports. Through post-hoc discriminant analysis and the one-way ANOVA (F-test), the significance of gender and kinds of sports were verified, respectively. Lastly, the discussion on the group property for Koreans, we-eonsciousness and individualism/group-ism, were conducted for each result

경기 일부지역 육용 양돈작업장의 분진 및 내독소 농도

유동호,김형아,허용,성재혁,이한기,박용규 한국산업위생학회 2003 한국산업보건학회지 Vol.13 No.1

The aim of this study was to evaluate exposure to dust and endotoxin produced while working at swine confinement buildings. The dusts and endotoxin may cause adverse health effects on humans. Fourteen swine farms located at Yong-In, I-Cheon and Yeo-Ju of onggi-do were investigated. Husbandry workers form the farms were requested to wear personal sampler to measure respirable dust levels. Area samplings for total and respirable dust were also conducted at swine confinements buildings by season (summer under window open, winter under window close.) Gravimetric analyses and Limulus Amebocyte Lysate assay for measu- rement of dust level and endotoxin, respectively. The highest geometric mean (GM) concentration of airbome dusts was 7.47mg/㎡ for area respirable dust. and 10.35mg/㎡ for personal respirable dust. For respirable dust levels, seven farmers exceeded level of ACGIH, 3mg/㎥. The highest GM of endo- toxin was 5745.40 EU/㎥ for personal respirable dust. Significantly increased level of total dust (p〈0.001) and endotoxin in area total dust was observe with winter samples compared with those of summer. Area total dust and area respirable dust (r-0.622, p〈0.0001) was very significantly correlated in winter. Swine husbandry worker may have a considerable risk of ill health whenexposed to level of dust or endotoxin demonstrated at this study.

모래다짐말뚝의 원심모델링

유남재,정길수,김상진,채승호 江原大學校 産業技術硏究所 2001 産業技術硏究 Vol.21 No.B

This paper is results of extensive centrifuge model experiments about design factors influencing the bearing capacity and the settlement behaviors of SCP (Sand Compaction Pile). Centrifuge model tests were carried out changing design factors for SCP method such as replacement area ratio (as= 20, 40, 70%), improvement ratio to footing width (W/B = 1, 2, 3), and amount of fines in sand pile (#200 = 5, 10, 15). Therefore, the effects of these design factors on the bearing capacity and the settlement behavior of SCP were investigated and changes of stress concentratio rato due to such an design factors were also investigated. Centrifuge model testing technique for preparing and installing centrifuge model of sand compaction pile, using freezing them, was also developed. As results of centrifuge model tests, more fines in sand compaction pile increases the bearing capacity of SCP. Optimum improvement ratio to footing width was found to be 2. Values of stress concentration ratio was in the ranges of 1.5 - 3.5. The depth of bulging in sand piles was found in the range of 2.0 - 2.5 times of pile diameter.

야간응급실로 내원한 급성 치통환자의 질환특성에 관한 임상적 연구

유재하,최병호,민연숙,오민성,이지응 연세대학교 원주의과대학 1999 원주의대논문집 Vol.12 No.1

고에너지 전자빔 투사를 이용한 표면합금화 재료의 미세조직 연구

유정훈,신기삼,윤재홍,이찬규,허성강,오준철,이성학,어광준 국립7개대학공동논문집간행위원회 2002 공업기술연구 Vol.2 No.-

For determination of the mechanism of microstructural modification by surface alloying technique using high energy electron beam (HEEB), surface alloys of carbon steel with TiC, TiB_2 and VC were fabricated and their microstructures were analyzed using optical microscope, XRD (X-ray diffractometer), and SEM (scanning electron microscope). The surface regions of TiC and VC surface alloy consists of 1) melted, 2) interface, and 3) heat affected regions. In the TiC surface alloy precipitates of large primary and fine eutectic TiC were observed. In TiB_2 surface alloy, neither fine precipitates were present nor the TiB_2 shape was changed from the original particles, which was attributed to the high melting temperature of TiB_2. Among the three surface alloys studied, the melted region hardness of VC surface alloy was the highest.