• 대한공간정보학회지
• /
• 제18권2호
• /
• pp.55-61
• /
• 2010

본 연구는 지상라이다로부터 획득한 3차원 점 데이터를 이용하여 구축된 공간자료를 격자(gridded) 및 비격자(un-gridded)로 구분하여 모델링을 실시하였고, 이러한 모델링 결과를 이용하여 가시선 분석 실험을 실시하였다. 두 모델의 형태에 따른 가시선 분석 결과를 비교하기 위하여 본 연구에서는 실험지역의 가시선 최대 도달거리를 A지역 30m, B지역 40m, C지역 50m로 구분하였고, 가시선 분석 소요 시간과 가시되는 점의 개수를 측정하였다. 실험 결과를 살펴보면, 비격자모델의 경우, 격자모델에 비해 지역별로 A지역은 약 3.9배, B지역은 약 5.4배, C지역은 약 6.5배 정도 많은 시간이 가시선 분석에 소요되었으며, A지역은 약 0.97배, B지역은 약 0.93배, C지역은 약 0.94배 정도 적은 가시점 개수가 측정되었다. 가시선 분석 소요시간은 가시선의 최대도달거리가 증가함에 따라 격자모델과 비격자 모델의 차이가 증가함을 알 수 있고, 반면에 가시되는 점의 개수는 가시반경의 크기에 크게 영향을 받지 않았다.

• 성인간호학회지
• /
• 제28권2호
• /
• pp.180-190
• /
• 2016

Purpose: This study examined the influence of occupational type and lifestyle habits on the prevalence of metabolic syndrome (MetS) among Korean male workers. Methods: Through secondary analysis of their four-year health examination data, 3,892 subjects were divided into four subgroups according to the presence of MetS now and four years ago. Results: Nineteen percent (n=739) suffered from MetS and these 739 subjects were classified into following occupations: 7.1% were office workers, 17.6% were non-office workers, and 42.2% were drivers. Multiple logistic regression analyses showed that when the data adjusted for age, the predicting factors on the prevalence of MetS were heavy drinking (OR 1.34, 95% CI 1.09~1.64) and the occupation of non-office workers (OR 2.99, 95% CI 2.13~4.18) and drivers (OR 7.97, 95% CI 4.89~10.83) among workers without MetS four years ago. Among workers already with a history of MetS, the predicting factors were less exercise (OR 1.55, 95% CI 1.02~2.35) and drivers (OR 2.21, 95% CI 1.03~2.94). Conclusion: Heavy drinking and less exercise and drivers were reported as influencing factors on the prevalence of MetS by this sample. The findings suggest that employers need to provide their employees with screening and management program for those at risk of MetS.

• 한국운동역학회지
• /
• 제17권2호
• /
• pp.113-121
• /
• 2007

The purpose of this study was to determine the effect of three different plates($0^{\circ}$, $10^{\circ$}, $20^{\circ}$)under heels on the lower limb muscles and erector spinae during squat exercise. Ten high school korean traditional wrestling players(age: $18.5{\pm}0.7$, weight: $1972.2{\pm}128.5N$, height: $177.8{\pm}6.0cm$, weight of barbell: $1004.5{\pm}132.4N$) performed squat exercise using three different tilting plates under heels at a cadence of 40beats/sec with 80% one repetition maximum load. Surface electrodes were placed on the participants' left and right erector spinae, and rectus femoris, vastus medialis, vastus lateralis, tibialis anterior, biceps femoris, medial gastrocnemius, and lateral gastrocnemius in the right lower extremity. One S-VHS camcorder(Panasonic AG456, 60fields/s) was placed 10m to the side of the participant. To synchronize the video and EMG data, a synchronization unit was used for this study. Average and Peak IEMG values were determined for each participant. For each variable, a one-way analysis of variance was used to determine whether there were significant differences among three different tilting plates under heels. When a significant difference was found in plates type, post hoc analyses were performed using the Tukey procedure. A confidence level of p<.05 was used to determine statistical significance. As a result of this study, maximum nEMG values of the tibialis anterior in $0^{\circ}$ plates was significantly higher than the corresponding values for the other plates during the knee extension. This increased activation in the tibialis anterior muscle indicates an increase in displacement of center of gravity of body. It is very likely that additional muscle activation are needed to stop the forward and backward movement. The results also showed that muscular activities of quadriceps femoris and erector spinae were decreased with increasing angle of plates. This suggests that increasing angle of plate may help to sustain the balance and posture of squat exercise. It is considered that very few significant differences were found among three different plates($0^{\circ}$, $10^{\circ}$, $20^{\circ}$) since elite players with much experience in squat exercise, were chosen as a participant of this study. In order to obtain meaningful results regarding the tilting angle of heel plates in squat exercise, kinetic and 3D kinematic analysis will be needed in the future study.

• Asian Pacific Journal of Cancer Prevention
• /
• 제16권3호
• /
• pp.1083-1089
• /
• 2015

Background: Compliance with California's smoke-free restaurant and bar policies may be more a function of social contingencies and less a function of legal contingencies. The aims of this study were: 1) to report indications of compliance with smoke-free legislation in Korean bars and restaurants in California; 2) to examine the demographic, smoking status, and acculturation factors of who smoked indoors; and 3) to report social cues in opposition to smoking among a sample of Koreans in California. Materials and Methods: Data were collected by telephone surveys administered by bilingual interviewers between 2007-2009, and included California adults of Korean descent who visited a Korean bar or restaurant in a typical month (N=2,173, 55% female). Results: 1% of restaurant-going participants smoked inside while 7% observed someone else smoke inside a Korean restaurant. Some 23% of bar-going participants smoked inside and 65% observed someone else smoke inside a Korean bar. Presence of ashtrays was related to indoor smoking in bars and restaurants. Among participants who observed smoking, a higher percentage observed someone ask a smoker to stop (17.6%) or gesture to a smoker (27.0%) inside Korean restaurants (N=169) than inside Korean bars (n=141, 17.0% observed verbal cue and 22.7% observed gesture). Participants who smoked inside were significantly younger and more acculturated than participants who did not. Less acculturated participants were significantly more to likely to be told to stop smoking. Conclusions: Ten years after implementation of ordinances, smoking appears to be common in Korean bars in California.

• 산업경영시스템학회지
• /
• 제32권3호
• /
• pp.78-84
• /
• 2009

The purpose of this study was to compare gait patterns during pregnancy. Because of the changes in hormone levels and anatomical changes such as body mass, body-mass distribution, joint laxity, and musculotendinous strength that result from pregnancy, it was possible that there would be certain gait deviations associated with these changes. Three-dimensional gait analyses were performed from a self-selected pace, and six subjects(height : $163{\pm}5.3cm$, mass : $61.3{\pm}3.80kg$, $65.3{\pm}5.14kg$, $70.2{\pm}4.98kg$) participated in the three times(the early, middle and last years). 7 cameras(Proreflex MCU-240, Qualisys) and 2 force plates (Type 9286AA, Kistler) were used to acquire raw data. The parameters were calculated and analyzed with Visual-3D and Joint moments computed using inverse dynamics. In conclusion, pregnant women's gait patterns were changed during pregnancy period because pregnancy makes them physical changes. The main changes were joint moments and kinematic factors during pregnancy period. The pregnancy transformed normal gait pattern Into toe out position. Therefore, exercise programs to improve muscle activity were necessary where joint moments were small. The development of simulator should be studied for pregnant women's tailored shoes and accessories in future.

• 국제물리치료학회지
• /
• 제9권1호
• /
• pp.1413-1419
• /
• 2018

The purpose of this study was to examine the effects of hemispheric damage in body composition of male adults with stroke experiences. The Fourth and Fifth Korea National Health and Nutrition Examination Surveys (KNHANES) with body composition results obtained from the DXA (dual-energy X-ray absorptiometry) assessments were used for this study. Survey data of 18 post-stroke men and 28 healthy controls were obtained. Both the lean and fat masses of the upper and lower limbs were utilized to compare for the compositions between the limbs in post-stroke subjects. In addition, the effect of exercise habit was also observed for the influence of physical activity in body composition. Mixed results in left and right limb compositions were shown between the groups. When the subjects were further divided based on walking days per week, sedentary (walk ${\leq}2d/wk$) post-stroke group showed significantly greater fat mass and less lean mass than the physically active people (walk ${\geq}3d/wk$). In comparison to the healthy sedentary and physically active controls, two post-stroke groups showed greater variations. The results indicate that physical activity maintains or improve the quality of both the upper and lower limb composition in patients with post-stroke men.

• Nutrition Research and Practice
• /
• 제7권5호
• /
• pp.409-417
• /
• 2013

This study was performed to determine the effects of dietary calcium (Ca) intake, milk and dairy product intake, and serum vitamin D level on bone mineral density. The survey data from the 2008-2009 Korea National Health and Nutrition Examination Survey (KNHANES) for adults (3,819 males, 5,625 females) aged > 20 years were examined; osteoporosis was defined according to the standards for Asian populations (T-score < -2.5). The risk for osteoporosis significantly decreased as Ca intake increased; this effect persisted (quartile 4 vs. quartile 1 of Ca intake: odds ratio [OR] 0.66; 95% confidence interval [CI]: 0.50-0.87) even after adjustment for gender, age, and other factors (body mass index, serum vitamin D, menstruation, female hormone intake, menopausal status, and the number of days per week of muscular strength exercise). Additionally, the risk for osteoporosis significantly decreased as the Ca/P ratio increased (quartile 4 vs. quartile 1: OR 0.76; 95% CI: 0.58-0.98). The degree of risk was 0.96 (0.66-1.38) in those who consumed < 1 portion of milk or dairy products daily, and 0.71 (0.53-0.96) in those who consumed > 1 portion per day, compared with those who had zero intake. The risk for osteoporosis significantly decreased as the serum 25(OH) vitamin D level increased. From these results, we advocate an increase in Ca, milk, and dairy product intake, and that serum 25(OH) vitamin D levels be maintained within the normal range, for the maintenance of bone health and the prevention of osteoporosis in adults.

• 한국안전학회지
• /
• 제23권6호
• /
• pp.150-157
• /
• 2008

The purpose of this study was to investigate the effect of short-tenn stretching type of muscular strength gymnastics on health-related fitness and rating of perceived pain for automotive industry workers. The subjects selected were 27, who were divided into 3 groups(A group=10, B group=9, C group=8). Group A performed a short-term stretching Type of Muscular Strength Gymnastics only one time. Group B continuously performed the exercise program two times. Group C was a control group. The exercise program was a stretching Type of Muscular Strength Gymnastics, which was performed 3 times per week for 4 weeks. Its intensity was RPE 11-15. Data analysis was conducted by using SPSS ver 14.0. The test was conducted with two-way repeated ANOVA, post-hoc Ducan and paired t-test (a<.05). This study showed the following results. Muscular strength, muscular endurance and flexibility increased in all intra and between groups. Ratio of %fat decreased for group B but the control group presented conversely. Rating of perceived pain of group A decreased at arm and hands. Rating of perceived pain of group A decreased at back and leg.

• 근관절건강학회지
• /
• 제10권2호
• /
• pp.142-155
• /
• 2003

The purpose of this study was to investigate the rate of utilization, kinds and effective complementary-alternative therapy in elder arthritics, and then utilize the results as basic data for nursing intervention for elder arthritics. Study subjects consisted of 157 elder arthritics over 60 years old, data were collected through a structured questionnaire and face to face interviews. Data collection was done from July 2001 to August 2001. Subjects were sampled out from outpatients of department of rehabilitation of a university hospital in S city, outpatients of a local hospital in D city, and outpatient at public heath center in K and S city. Sexual distribution of subjects showed male 19.1% and the female 80.9%. The diagnosis distribution showed degenerative arthritis at 91% and reumatoid arthritis at 8.9% Duration of arthritics was 10 years over by 46.5%, duration of hospital treatment was 1-5 years by 41% The degree of pain by arthritis pointed out a mean point of 3.37 on a 5-point numeric scale 94.2% of subjects have experience complementary-alternative therapies used. Of the kind the subjects used, physiotherapy occupied 38.2%, Oriental medicine 36.3%, physical exercise 35.7%, nutritional therapy 22.3%, animal diet 8.9%, herbal diet 3.8%. The hardest thing due to arthritis represented disability in daily life by 59.8% and the pain problem by 30.5%. In conclusion, results of the study reveal that elder arthritics have used physiotherapy, Oriental medicine, physical exercise. Concrete strategies for nursing intervention about these complementary-alternative therapy are required to the established soon.

• 기본간호학회지
• /
• 제12권3호
• /
• pp.354-361
• /
• 2005

Purpose: The purpose of this study was to identify the relationship between health promoting behaviors and state anger and modes of anger expression in elderly women. Method: In this descriptive correlational study, the participants were 143 elderly women who lived in D city. Data were collected from September to December, 2004. Personal interviews with a structured questionnaire were used. The data were analyzed using descriptive statistics, t-test, ANOVA and Pearson correlation coefficients with SPSS Win 11.0 program. Results: The score for health promoting behavior in the elderly women was above the mean score, The dimension with the highest score was nutrition and the dimension with the lowest score was exercise. A significant negative correlation was found between health promoting behaviors and state anger, anger-in(suppression of anger) and anger-out(expression of anger) in elderly women. But there was a significant positive correlation between health promoting behaviors and anger discussion. Conclusion: State anger, anger-out, anger-in as negative variable and anger discussion as a Positive variable were identified. These results suggest that anger should be considered as an important factor when nurses develop educational programs to enhance health promoting behavior in elderly women.