40ㆍ50대 일부 남성근로자의 골감소증 및 골다공증 유병실태와 위험요인

장윤균,서현주,진영우,정미선,성숙희,박두용,김종순,김수근 大韓産業醫學會 2006 대한직업환경의학회지 Vol.18 No.2

목적: 최근 국내에서도 골다공증과 관련된 생활양식의 규명에 관한 연구가 이루어지고 있으나, 아직까지 남성 골다공증에 대한 연구가 활발하게 이루어지지 않아 40, 50대 남성근로자를 대상으로 유병률을 파악하고, 골감소증 및 골다공증 관련 위험요인을 확인하고자 하였다. 방법: 원자력발전소에 근무하는 40, 50대 남성 근로자 2,073명을 대상으로 2004년 3월~7월 기간동안 생활습관을 파악하기 위하여 자기기입식 전산입력 방식으로 최종학력, 흡연여부, 음주여부, 신체활동 횟수를 조사하였고, 골밀도검사, 체성분검사(체지방률, 허리-엉덩이둘레비), 신체계측(신장, 체중)을 시행하였고, 골밀도 검사는 Osteosys사의 EXE-3000을 이용하여 종골부위를 측정하였고, 체지방률, 허리-엉덩이 둘레비는 Biospace사의 Inbody 3.0을 이용하여 측정하였다. 통계분석은 골감소증 및 골다공증의 관련요인을 분석하기 위해 다중로지스틱회귀분석을 시행하였다. 결과: 연구대상자의 골감소증 및 골다공증 유병률은 22.8%와 3.0%이었으며, 골감소증 및 골다공증의 관련요인으로는 연령이 증가할수록, 흡연자이거나 과거흡연자일 경우, 체질량지수가 25 kg/m^(2) 미만일 경우, 30분 이상 신체활동 횟수가 주 3회 미만일 경우가 유의한 연관성이 있었다. 결론: 성인 남성 40, 50대의 골감소증 및 골다공증의 유병률이 높은 편이었으며, 골감소증 및 골다공증으로 이환을 예방하기 위하여 금연, 활발한 신체활동을 촉진하여 골밀도를 개선시키는 생활습관으로의 변화를 권고해야 할 것이다. Objective: This study was conducted to investigate the prevalence and risk factors of osteopenia and osteoporosis in 40-59 year-old male workers working at nuclear power plants. Methods: Bone density, body composition, and anthropometry data were analyzed for 2,073 subjects were carried out from March 2004 to July, 2004. Educational level, smoking status, drinking status and frequency of physical activity were investigated by self-reported questionnaires through internet to identify lifestyles related to bone mass density. Bone mass density was measured by EXE-3000 of Osteosys Co. And body fat percentage, and waist-to-hip ratio by inbody 3.0 of Biospace Co. Results: The prevalence of ostepeniaosteopenia and osteoporosis was 22.8% and 3.0%, respectively. According to multinominal multinomial logistic regression analysis, age, smoking status (current smoker and former smoker), low body mass index (< 25kg/m^(2)), and frequency of physical activity were significantly associated with osteopenia and osteoporosis. Conclusions: The prevalence of ostcopenia and osteoporosis wasseemed high for the, when it was inferred from subjects' age compared to the results of previous studies. The This study results suggeststhat it is necessary for 40-59 year-old male workers to stop smoking, and exercise regularly in order to prevent osteopenia and osteoporosis.

고속도로에서 WAVE 통신의 전파 전파 특성에 관한 연구

최현균(Hyunkyun Choi),곽동용(Dongyong Kwak),장윤선(Youn-Seon Jang) 한국통신학회 2012 한국통신학회 학술대회논문집 Vol.2012 No.6

WAVE 통신의 페이딩 효과와 안테나 다이버시티 실험

최현균(Hyun-Kyun Choi),오현서(Hyun-Seo Oh),조웅(Woong Cho),장윤서(Youn-Seon Jang) 한국통신학회 2014 韓國通信學會論文誌 Vol.39 No.10(융합기술)

WAVE (Wireless Access in Vehicular Environments) 통신은 차량이 주행하면서 도로 인프라 및 다른 차량과 상호 통신하며 교통정보 및 서비스를 교환 및 공유하는 정보통신 융합 시스템인 국내 C-ITS (Cooperative-Intelligent Transportation System)의 핵심적인 기술이다. 본 논문에서는 고속도로에서의 WAVE 통신에 있어서 통신거리에 따라 통신성능이 현저히 떨어지는 null 점의 발생 위치를 분석하기 위하여 two-ray 지면 반사 모델을 사용하여 down-fade와 up-fade가 발생하는 위치를 수식으로 정의하였으며 실제 고속도로 LOS (Line Of Sight) 환경에서 WAVE 통신 장치를 사용한 RSSI (Receiver Signal Strength Indicator) 값 측정 실험결과와 비교 검증하였다. 또한, down-fade 발생의 문제점을 개선하기 위하여 수신 안테나 다이버시티 기능을 적용한 WAVE 통신 보드를 구현하고 실험을 통해 수신 성능이 개선되는 것을 확인하였다. WAVE (Wireless Access in Vehicular Environments) communications is the core technology for C-ITS (Cooperative-Intelligent Transportation System) which communicates with the road infrastructure and other vehicles to exchange traffic information and service while driving. In this paper, to analyze the performance degradation according to the distance between WAVE communication terminals, we derived the formulas for the locations of down-fade and up-fade points by using the two-ray ground reflection model, and verified these theoretical results by comparing with those of RSSI (Receiver Signal Strength Indicator) measurements. In addition, to solve the problem of down-fade, we suggested the WAVE communication with the antenna diversity and experimentally confirmed the performance improvement in the highway LOS (Line Of Sight) environments.

TDMA 시스템의 큐잉 지연 분석에 관한 연구

최현균(Hyun-Kyun Choi),조한벽(Hanbyeog Cho),장윤선(Youn-Seon Jang) 한국통신학회 2015 한국통신학회 학술대회논문집 Vol.2015 No.06

일부 남성근로자의 3년간 고혈압 발생률과 위험요인

서현주,김종순,장윤균,박일근,김수근,Seo, Hyun-Ju,Kim, Chong-Soon,Chang, Yun-Kyun,Park, Il-Geun,Kim, Soo-Geun 대한예방의학회 2006 예방의학회지 Vol.39 No.3

Objectives: Cardiovascular disease is one of the main causes of death and morbidity in Korea. In this study, the prevalence and incidence of developing hypertension in a male-workers' cohort were investigated during 3-years follow-up with a view to find the risk factors that affected the development of hypertension. Methods: Among the 5,374 people who participated in a routine health check up, 3,852 people with normal blood pressure and who had no history of hypertension were prospectively followed up for 3 years. The classification of hypertension was based on the JNC7 report (the Seventh Report of the Joint National Committee on Prevention, Detection, Evaluation, and Treatment of High Blood Pressure). Life style factors and underlying diseases that were related to the risk factors of hypertension were collected by using a self-report questionnaires via the internet. Results: The prevalence of hypertension was 28.3% (1,520/5,374) at the first screening (2001). It was found that the incidence in 2004 of hypertension for the follow-up subjects (3,711) who had normal blood pressure in 2001 was 7.6 per 100 person-year. Multiple logistic regression analysis of the variables related to the risk factors of hypertension was carried out. The relative risks were 1.037 (95% CI=1.022-1.053) as the age increased 1 year and 1.039 (95% CI=1.023-1.055) as the body mass index increased $1kg/m^2$. The relative risk for the prehypertensive group was 2.501 (95% CI=1.986-3.149) compared to the normotensive group. These results showed that age, body mass index and the baseline blood pressure were significantly related to the incidence of hypertension. Conclusions: The incidence of hypertension was 7.6 per 100 person-year during follow-up. It was concluded that the risk factors for developing hypertension in the short-term were age, BMI, and prehypertension; Especially, this showed that it is necessary for prehypertensives to manage their body weight and blood pressure to prevent hypertension in middle-age by modifying their life style.

건강한 여성 근로자에서 Apolipoprotein E와 혈중 지질 농도와의 관련성

문기은,성숙희,장윤균,박일근,백윤미,김수근,최태인,진영우,Moon, Gi-Eun,Sung, Sook-Hee,Chang, Youn-Koun,Park, Il-Keun,Paek, Yun-Mi,Kim, Soo-Geun,Choi, Tae-In,Jin, Young-Woo 대한예방의학회 2010 예방의학회지 Vol.43 No.3

Objectives: Plasma lipid profiles and Apolipoprotein E (ApoE) are established risk factors for cardiovascular disease (CVD). The knowledge of lipid profile may estimate the potential victims of cardiovascular disease before its initiation and progression and offers the opportunity for primary prevention. The most common ApoE polymorphism has been found to influence plasma lipid concentrations and its correlation with CVD has been extensively investigated in the last decade. Methods: The ApoE polymorphism and its influence on plasma lipid were investigated in healthy woman workers. The information on confounding factors was obtained through a self-administered questionnaire and ApoE polymorphism was investigated using PCR. Results: The relative frequencies of alleles E2, E3 and E4 for the study population (n = 305) were 0.127, 0.750 and 0.121, respectively. ApoE polymorphism was associated with variations in plasma HDL-cholesterol lipid profile. In order to estimate the independent effects of alleles E2 and E4, as compared with E3, on lipid profile, multiple regression was performed after adjustment for confounding variables such as age, BMI, blood pressure, education status, insulin, fasting glucose, HOMA-IR, menopause. ApoE2 had a negative association with HDL cholesterol and ApoE4 had a positive association with LDL cholesterol. Conclusions: This study identified that the ApoE and CVD risk factors contribute to the lipid profiles, similar to other studies. The analysis including dietary intake and other gene in further studies may help to identify clear effects on lipid profiles as risk factor for CVD.

방사선량 측정을 위한 말초혈액 림프구 배양법에 있어서 적혈구의 역할

김석환,이현주,장윤균,양광희,소용선,권기현,김태형,한상웅,이재용 大韓血液學會 1996 大韓血液學會誌 Vol.31 No.1

원자력 발전소 피폭자 건강 영향평가 사례보고

이정은,양광희,장윤균,정미선,진영우,김종순 대한방사선방어학회 2007 방사선방어학회지 Vol.32 No.3

항암제와 전리방사선에 의한 염색체 손상의 비교 연구

김종순,이연주,김은실,양광희,장윤균 대한핵의학회 1996 핵의학 분자영상 Vol.30 No.2

산업장 남성 근로자들의 비만도에 따른 혈청 지질과 식사 질 평가

이정현,김정은,백윤미,장윤균,성숙희,박일근,박유경,최태인 대한임상건강증진학회 2008 Korean Journal of Health Promotion Vol.8 No.3

Background The prevalence of overweight and obesity in Korea is steeply increasing. Obesity is generally explained by an imbalance between increased energy intake and decreased activity. The purpose of this study was to evaluate and compare the diet quality of normal and overweight/obese male workers. Methods Of 174 workers, total of 123 healthy men participated in the study providing 3-day diet history and their lab data with simple anthropometry. Nutrition analysis was performed with CAN-Pro 3.0. Statistical analysis were performed between normal (BMI 18.5~23.0kg/m2, n=33) and overweight/obese(BMI≧23.0kg/m2, n=90) subjects. Results Their age was 44.39±8.89 (yrs) in the normal group and 48.29±7.90 (yrs) in the overweight/obese group. TG, Total and LDL-cholesterol were significantly higher in the overweight/obese group and HDL-cholesterol was significantly lower. Correlation between BMI and other factors were assessed. As expected, all the lipid profile and other parameters were consistent with previous reports. No significant difference was observed in energy intake. Diet quality assessment also was not able to distinguish the dietary pattern of obese vs. normal subjects. In both groups, Ca, Vit B2 and folate intake was lower in terms of INQ. Conclusions Data on the correlation analyses, most of the results are in agreement with other previously published literature. The role of diet composition or individual nutrient does not seem to contribute to extra weight gain. However, we could suggest from this result that Ca, Vit B2, folate must be included in any form of education or intervention. 연구배경 비만은 만성질환의 위험요인으로 중요한 건강문제일 뿐 아니라 심리적, 사회적으로도 개인을 위축시켜 사회생활에 영향을 미 친다. 본 연구에서는 산업장 남성 근로자들의 비만도에 따른 혈청 지질 및 영양소 섭취 상태를 평가하여 맞춤형 영양관리를 하는데 기초 자료로 활용하고자 한다. 방 법 2006년 3월에 발전 업무에 종사하는 근로자 174명을 대상으로 신체계측(신장, 체중, 체질량지수), 혈액검사(Total cholesterol, HDL-cholesterol, LDL-cholesterol, Triglyceride), 식이섭취조사를 실시하였고 그 중 자료가 불완전한 51명을 제외한 123명을 최종 대상으로 하였다. 식이섭취조사는 3일에 걸쳐 섭취한 모든 음식에 대하여 자가 기록하도록 하였으며 영양소 분석은 한 국영양학회의 Can-pro 3.0을 이용하였다. 결 과 평균 연령과 Total cholesterol, LDL-cholesterol, Triglyceride 농도는 과체중/비만군이 정상군보다 유의하게 높았고(p<0.05), HDL Cholesterol 농도는 과체중/비만군이 유의하게 낮았다(p<0.05). BMI는 혈중 LDL, Triglycerid와는 양(+)의 상관관계를 보였으며(p<0.05), HDL과는 음(-)의 상관관계를 보였다(p<0.01). 식이섭취조사 결과, 정상군과 과체중/비만군 모두 칼슘과 비 타민 B2, 엽산의 섭취량이 부족한 것으로 나타났다. 영양소 적정 섭취비(NAR)는 정상군의 단백질 NAR이 비만군보다 유의하 게 낮았다(p<0.05). 영양밀도지수(INQ)는 정상군, 비만군 모두 대부분 영양소의 INQ가 1.0을 넘어 양호한 수준이었으나 엽산 은 정상군, 비만군 모두 1.0 미만이었다. 칼슘과 비타민 B2, 엽산의 경우 두 그룹 모두 대상자의 과반수이상이 평균 필요량 이하로 섭취하는 것으로 나타났다. 결 론 본 연구 결과 정상군과 비만군의 영양소 섭취량에 유의한 차이는 없었으나 두 그룹 모두 칼슘, 비타민 B2, 엽산 섭취율이 낮 은 것으로 나타났다. 따라서, 만성질환 개선 및 예방을 위해 균형된 영양소를 섭취할 수 있도록 근로자 대상의 영양교육이 필요한 것으로 사료된다.