• 한국보건간호학회지
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• 제14권1호
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• pp.12-25
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• 2000

The purpose of this study was to determine the effects of aerobic rhythmical exercise program on $VO_2$ max, leg strength, grip strength, flexibility, exercise self-efficacy and quality of life in elderly. This quai-experimental study was designed as a non-equivalent control group pretest-posttest study. 36 subjects, aged between 65 and 73 years who have normal cognition. sensory function and cerebellum function participated in this study. 19 experimental group subjects participated aerobic rhythmical exercise program. Aerobic rhythmical exercise program was developed on the basis of calisthenics, stretching, aerobic exercise, Korean traditional dance and music by the author. The program consisted of approximately 1 hours of exercise, 3 times a week for 9 weeks. During 1 hours workout, there were 15 minutes of warm-up dancing, 35 minutes of conditioning dance and 10 minutes of cool-down dancing. The intensity for the conditioning phase was between $40\%\;and\;60\%$ of age adiusted maximum heart rates. The $VO_2$ max, grip strength, leg strength, flexibility, exercise self-efficacy and quality of life were measured prior to and following the experimental treatment. Data were analyzed with $x^2-test$, t-test, mean, standard deviation. percentage of change and ANCOVA test using SAS program. Results were obtained as follows. 1. The $VO_2$ max of the experimental group were significantly lower than those of the control group following the aerobic rhythmical exercise program(F=7.76, p=0.008). 2. The grip strength of the experimental group were significantly lower than those of the control group following the aerobic rhythmical exercise program(F=4.61, p=0.039). 3. The leg strength of the experimental group were significantly lower than those of the control group following the aerobic rhythmical exercise program(F=9.29, p=0.000). 4. The was no significantly difference of flexibility between experimental and control group 5. The self-efficacy of the experimental group were significantly lower than those of the control group following the aerobic rhythmical exercise program(F=43.40, p=0.000). 6. The quality of life of the experimental group were significantly lower than those of the control group following the aerobic rhythmical exercise program(F=8.91. p=0.005). The results suggest that aerobic rhythmical exercise program can improve $VO_2$ max, grip strength. leg strength. exercise self-efficacy and quality of life elderly. Thus. aerobic rhythmical exercise program was a useful nursing intervention for elderly.

• 한국의류학회지
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• 제22권2호
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• pp.193-202
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• 1998

The purpose of this study was to understand clothing condition of elderly men focusing on somatotype variation and satisfaction with ready-to-wear and to provide basic data in designing ready-to-wrar for the elderly men. The questionnaire method was used and one-to-one interviews were held for the elderly residents in Seoul, Deajon, Jonju, and Yeosu areas. The total of 275 questionnaires (from 148 elderly men in the 60's, 99 in the 70's and 28 in the 80's) were collected and used for statistics. SAS package was used for the statistics and the statistics were based on frequency, X2-test, ANOVA, Duncan's multifle range test. The results of the study were as follows; 1) Height (p< .05), weight (p< .001) and Rohrer index (p< .05) decreased significantly with ageing 2) The somatotypes of 75.6% were changed and the 70's 8t the 80's showed significantly (p< .05) higher changing rate compared to the 60's and more changes took place significantly (p< .001) with ageing. 3) The most preferred out wear was suit & tie and next was jumper or shirt. 4) For the mode of getting suit, the highest number 55.3%) purchased ready-to-wear, next (32.0%) was tailored and the least (12.7%) neither purchased nor tailored. The percentage of buying ready-to-wear significantly (p< .01) decreased with ageing. The main reason for getting tailor-made was not well fitting of ready-to-wear (20.7% out of 32.0%). And for the mode of getting suit, there was significant differance with income (p< .001) and pocket money (p< .01). 5) The most important factors in suit and shirt werefirst, size (fitness) and second, comfort in movement. 6) For the wearing feeling of suit, 55.3% showed discomfort. There was significant difference according to the age (p< .05) and pocket money (p< .05). The Discomfort increased with ageing and less pocket money. 7) 62.4% answered it uneasy to Pick out well fitting If comfortable suit. This showed their dissatisfaction with ready-to-wear. 8) As for the items of not well fitting, 64.4% answered in jacket, 60.8% in trousers, 46.0% in shirt. The above result shows that elderly men's somatotype changes as they age, suit is found uncomfortable and it's not easy for elders to pick out comfortable ready-to-wear. So, they seem to have a certain dissatisfaction in ready to wear. Therefore, there is a need for reorganization of size and developing pattern design according to measurement of elderly men.

• 농촌계획
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• 제19권3호
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• pp.13-24
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• 2013

With the increase of visitors to rural tourism villages, the direct selling at sites is getting vitalized. Accordingly, their display stores is getting more important. Therefore, this study has selected 30 domestic rural tourism villages as study objects for the attitude survey of 200 farming suppliers and the site examination for the designs of those display stores in order to analyze their status and classify the types of necessity. Such operation status as sale item, sale method, method of supply and demand, major customer, sales scale, manager, opening hour, and operation cost were examined, to identity and for design factors the pattern, material quality and color were investigated. For the attitude of farming suppliers, the tactics of sales, the reason for being positive or negative, the functionality and the features of display stores were examined through brainstorming. IBM SPSS Statistics 20 Program was employed for Frequency, which indicated that village chiefs and store managers with the sales scale of 1 to 20 million won are dealing with female customers in their 40's and 50's and that those stores are open at the time of experience or year round without any operation expense. Permanent type and Fixed type were found to be the design factors of the display-case type with the material and the color of wood and orange respectively. The result of investigation analysis of farming suppliers' attitude showed the followings: the need of display stores is quite high, structure type and permanent type have high fitness and from the viewpoint of display-on-table type as a standard moving type was very convenient. The analysis of significant items at the characteristics of those display stores revealed that their locations, quality conservation, sanitation, users' convenience, designs and promotion are very important. The result of status analysis revealed that though there is a correlation among the types of display stores depending on the visiting season of tourists their installing is not desirable. Three types have been analyzed: Type 1 is a structure type only in the villages with continuous visitors, Type 2 a moving-table type only in the villages with temporary visitors and Type 3 is a fixed display-case type.

• 한국콘텐츠학회논문지
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• 제8권8호
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• pp.196-205
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• 2008

본 연구는 재즈댄스 참가와 신체상 및 정신건강과의 관계를 규명하여 재즈댄스의 활성화에 기여하는데 목적을 두었다. 연구의 대상은 서울, 경기지역에 거주하는 만 18세 이상을 모집단으로 유의표집법(Purposive Sampling Method)을 이용하여 대학 교양수업, 문화센터, 스포츠 센타, 생활무용현장 등에서 총 183명을 분석대상으로 표집 하였다. 조사도구는 Jourard와 Secord(1954)가 개발한 신체적 만족척도(Body Cathexis Scale)를 수정 보완하여 6개요인 총39문항으로 재구성한 신체상과 Derogatis, Rickles와 Rock(1976)이 개발한 90개 문항의 정신 건강증상 체크리스트(SCL-90)를 한국 실정에 맞게 번역하여 제작한 김광일 등(1978)의 46개 질문지를 줄여 31개 문항 4개 요인으로 수정 재구성하여 사용하였다. 조사 분석은 요인분석, 신뢰도분석, 회귀분석, 경로분석을 통하여 다음과 같은 결론을 얻었다. 1. 재즈댄스 참가정도는 신체상에 영향을 미친다. 즉 재즈댄스 참가빈도가 높을 수 록 건강과 하체 신체상이 높다. 2. 재즈댄스 참가정도는 정신건강에 영향을 미친다. 즉, 참가기간이 길수록 대인예민증에, 참가빈도가 많을수록 신체화가 높다. 3. 재즈댄스 참가정도와 신체상 및 정신 건강과의 인과관계는 참가빈도는 건강과 하체, 신체화에, 그리고 신체상의 하체는 대인예민증, 적대감, 불안 우울에 직접적인 영향을 미친다. 따라서 신체상의 하체요인은 재즈댄스 참가빈도와 정신건강과의 관계에서 매개변수로 중요한 작용을 하는 것으로 나타났다.

• Asian-Australasian Journal of Animal Sciences
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• 제29권5호
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• pp.607-614
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• 2016

The objectives of the study were to estimate genetic parameters for milk production traits of Holstein cattle using random regression models (RRMs), and to compare the goodness of fit of various RRMs with homogeneous and heterogeneous residual variances. A total of 126,980 test-day milk production records of the first parity Holstein cows between 2007 and 2014 from the Dairy Cattle Improvement Center of National Agricultural Cooperative Federation in South Korea were used. These records included milk yield (MILK), fat yield (FAT), protein yield (PROT), and solids-not-fat yield (SNF). The statistical models included random effects of genetic and permanent environments using Legendre polynomials (LP) of the third to fifth order (L3-L5), fixed effects of herd-test day, year-season at calving, and a fixed regression for the test-day record (third to fifth order). The residual variances in the models were either homogeneous (HOM) or heterogeneous (15 classes, HET15; 60 classes, HET60). A total of nine models (3 orders of $polynomials{\times}3$ types of residual variance) including L3-HOM, L3-HET15, L3-HET60, L4-HOM, L4-HET15, L4-HET60, L5-HOM, L5-HET15, and L5-HET60 were compared using Akaike information criteria (AIC) and/or Schwarz Bayesian information criteria (BIC) statistics to identify the model(s) of best fit for their respective traits. The lowest BIC value was observed for the models L5-HET15 (MILK; PROT; SNF) and L4-HET15 (FAT), which fit the best. In general, the BIC values of HET15 models for a particular polynomial order was lower than that of the HET60 model in most cases. This implies that the orders of LP and types of residual variances affect the goodness of models. Also, the heterogeneity of residual variances should be considered for the test-day analysis. The heritability estimates of from the best fitted models ranged from 0.08 to 0.15 for MILK, 0.06 to 0.14 for FAT, 0.08 to 0.12 for PROT, and 0.07 to 0.13 for SNF according to days in milk of first lactation. Genetic variances for studied traits tended to decrease during the earlier stages of lactation, which were followed by increases in the middle and decreases further at the end of lactation. With regards to the fitness of the models and the differential genetic parameters across the lactation stages, we could estimate genetic parameters more accurately from RRMs than from lactation models. Therefore, we suggest using RRMs in place of lactation models to make national dairy cattle genetic evaluations for milk production traits in Korea.

• 산업융합연구
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• 제18권3호
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• pp.91-98
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• 2020

이 연구의 목적은 휠체어 마라톤의 구간별 기록의 차이를 규명하고 훈련에 필요한 정보와 훈련법 개발을 위한 기초자료를 제공하고자 하는데 있다. 이 연구의 대상은 2016년 서울 국제 휠체어 마라톤대회에 참가자 중 42.195km의 풀코스를 완주하여 우승한 외국 남자선수 1명과 국내 상위선수 4명, 총 5명의 기록을 대상으로 분석하였다. 매 5km에 해당하는 구간기록과 완주기록을 사용하였으며 제1구간부터 제9구간으로 설정하였다. 자료처리방법은 통계프로그램인 SPSS 25.0을 이용하여 기술통계(평균, 표준편차)를 사용하였다. 위와 같은 연구방법과 절차에 따라 다음과 같은 결론을 도출하였다. 우승한 W1 선수의 경우 30km에서 35km지점에서 기록은 전체 구간에서 가장 빠른 8분 43초의 기록을 나타냈으며, 국내 1위 선수의 K1 선수보다 1분 4초의 기록 차이를 보였다. 국제 대회에서 상위 입상하기 위해서는 후반 이후 지점에서 빠른 페이스에 적응하는 훈련이 필요하다. 즉, 하프 거리를 기준으로 후반 페이스가 빨라야한다는 것을 알 수 있었다. 또한 전반 하프의 각각의 구간에서 개인 구간별 평균 속도의 수준에 맞는 레이스 페이스를 전개해야 할 것이다. 따라서 초반 레이스를 유지 할 수 있는 체력 훈련 프로그램과 후반 이후의 페이스 변화에 대응할 수 있는 훈련 프로그램을 적용하여야 할 것으로 사료된다.

• 한국콘텐츠학회논문지
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• 제10권8호
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• pp.407-416
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• 2010

이 연구의 목적은 생활무용 참가가 여성의 신체이미지 및 자아존중감의 관계를 규명하는데 있다. 이를 위하여 2009년 서울 경기도지역에 있는 스포츠센터, 일반동호회, 지역동호회, 댄스학원, 일반인을 대상으로 생활무용에 참여하고 있는 20~50대 성인여성을 모집단으로 설정한 다음, 유의표집법을 이용하여 300명을 추출 하였다. 설문지의 신뢰도는 분석결과 Cronbach's $\alpha$ 값이 .70이상으로 나타났다. 이 연구에서 사용한 주요통계기법은 빈도분석, 신뢰도 요인분석, 공변량분석, 회귀분석 및 경로분석이다. 이상과 같은 연구방법 및 절차를 통해 도출된 결론은 다음과 같다. 첫째, 생활무용 참가여성은 비참가여성에 비해 신체이미지 및 자아존중감을 더 긍정적으로 평가한다. 둘째, 생활무용 참가기간은 체형, 만족, 유연성요인에 영향을 미치고 있으며, 참가강도는 체형과 근력요인에 영향을 미친다. 셋째, 생활무용참가기간은 자아존중감에 영향을 미치며, 참가빈도는 부적 영향을 미치는 것으로 나타났다. 넷째, 여성의 생활무용 참가정도는 신체 이미지 그리고 자아존중감에 인과적 영향을 미친다. 즉 생활무용 활동 정도는 자아존중감에 직접적인 영향을 미칠 뿐만 아니라, 신체이미지 변수를 통하여 자아존중감에 간접적인 영향을 미친다. 이러한 결과에서 보듯이 신체이미지는 생활무용 참가와 자아존중감을 연결해주는 중요한 매개변수 역할을 한다.

• 한국조경학회지
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• 제39권6호
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• pp.110-117
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• 2011

본 연구는 2010년 4월 3일부터 3가지 토양 조성에 따른 섬기린초의 월동 후 생육상태를 측정하였고, 초고-생장시간 생장모형을 개발하고자 하였다. 이를 위해 함수식(Logistic식과 Gompertz식)을 사용하였고, SPSS를 이용하여 비선형 회귀분석을 진행하였다. 섬기린초의 초고-생장시간 생장모형을 통하여 섬기린초 월동 후의 생장과정과 관리방법을 명확하게 파악할 수 있다. 섬기린초의 생육상태 측정치에 의하면, 펄라이트($P_1$)보다는 혼합한 토양($P_2P_1V_1$, $P_1P_2V_1$)의 생육상태가 더 양호하고, 평균초고는 최대 약 2배 정도의 차이가 나타났다. 그리고 섬기린초의 Logistic생장모형과 Gompertz생장모형의 평균결정계수($R^2$)는 0.995, 0.978 순으로 나타났으며, Logistic생장모형의 적합성은 Gompertz생장모형보다 높은 것으로 확인되었다. 또한 섬기린초의 생장모형을 통하여 월동 후의 생장 기간은 3기간으로 나눌 수 있으며, 생장형태는 "비교적 빠른 생장기간---아주 빠른 생장기간---느린 생장기간"으로 구분할 수 있다. 옥상녹화용 섬기린초를 관리할 때 빠른 생장기간에서만 관리하면 섬기린초의 생육상태는 많이 좋아질 것으로 판단된다.

• 한국임상수의학회지
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• 제33권2호
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• pp.107-112
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• 2016

The objective of this study was to determine potential contributing factors associated with biosecurity level of farrow-to-finish pig farms and to develop a classification tree model to explore how these factors related to each other based on prediction model. To this end, the author analyzed data (n = 193) extracted from a cross-sectional study of 344 farrow-to-finish farms which was conducted between March and September 2014 aimed to explore swine disease status at farm level. Standardized questionnaires with information about basic demographical data and management practices were collected in each farm by on-site visit of trained veterinarians. For the classification of the data sets regarding biosecurity level as a dependent variable and predictor variables, Chi-squared Automatic Interaction Detection (CHAID) algorithm was applied for modeling classification tree. The statistics of misclassification risk was used to evaluate the fitness of the model in terms of prediction results. Categorical multivariate input data (40 variables) was used to construct a classification tree, and the target variable was biosecurity level dichotomized into low versus high. In general, the level of biosecurity was lower in the majority of farms studied, mainly due to the limited implementation of on-farm basic biosecurity measures aimed at controlling the potential introduction and transmission of swine diseases. The CHAID model illustrated the relative importance of significant predictors in explaining the level of biosecurity; maintenance of medical records of treatment and vaccination, use of dedicated clothing to enter the farm, installing fence surrounding the farm perimeter, and periodic monitoring of the herd using written biosecurity plan in place. The misclassification risk estimate of the prediction model was 0.145 with the standard error of 0.025, indicating that 85.5% of the cases could be classified correctly by using the decision rule based on the current tree. Although CHAID approach could provide detailed information and insight about interactions among factors associated with biosecurity level, further evaluation of potential bias intervened in the course of data collection should be included in future studies. In addition, there is still need to validate findings through the external dataset with larger sample size to improve the external validity of the current model.

• 대한인간공학회지
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• 제36권4호
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• pp.281-292
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• 2017

Objective: This study aims to identify important physical design variables in designing a necklace type wearable device, and to present design guidelines to maximize comfort that a user feels upon wearing the device. Background: Interests in fitness culture and personal health are on the rise recently. In such a situation, demand for necklace type wearable devices is projected to increase a lot, as the devices enable users to use their hands freely and to enjoy various contents through connection with mobile devices. However, the necklace type wearable device's comfort was assessed to have the lowest comfort in a running situation, where human body moves up and down and left and right more than other devices wearable on other human body parts. Therefore, the usability of a necklace type wearable device was low. In this regard, studies on identification of the variables affecting user comfort upon wearing a necklace type wearable device and on physical design direction maximizing comfort and usability are needed. Method: A pretest and a main test were carried out to draw the direction of necklace type wearable device design. In the pretest, wearing evaluation on the diverse types of devices released in the market was conducted to draw physical design variables of the devices affecting comfort. Furthermore, variables significantly affecting the comfort of a device were selected through an analysis of variance (ANOVA). In the main test, anthropometry was performed, and information on anthropometric items corresponding to the design variables selected in the pretest was acquired. Based on the pretest results and the anthropometric information in the main test, the present study produced design guidelines maximizing the comfort of a necklace type wearable device with regard to major design variables upon dynamic tasks. Results: According to the pretest results, the variables having effects on comfort were the angle of side points, width, and height. Due to interactions between variables, those need to be simultaneously considered upon designing a device. Upon dynamic tasks, the angle of side points and width of a device was designed to be smaller than mean angle of the trapezius muscle and neck width, and thus attachment to human body was high. As height was designed to be larger than mean neck front and rear point width, comfort was higher due to feeling of stability. Conclusion: Because user sensitivity to comfort was high at human body's inflection points, a device needs to be designed for users not to feel high pressure on specific body parts with the device fitting human body shape well. A design considering user's situation is also required in further studies.