• 제목/요약/키워드: Human research subjects

검색결과 1,295건 처리시간 0.039초

A study on procedure for classifying male muscular lower body somatotype from general anthropometric database

  • Lee, Minji;Chun, Jongsuk
    • 복식문화연구
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    • 제21권4호
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    • pp.585-595
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    • 2013
  • The most researches developing pattern of compression style sportswear were targeted at the live model that has muscular body build. The purpose of this study was developing a method for classifying men's lower body types in terms of muscular body build. The 3D human body scan data and body measurements of 30s of Size Korea were analyzed. The subjects (n=203) were men between the ages of 30 and 39 years. Men's muscular body build was classified with two key dimensions, thigh girth and calf girth. The subjects were divided into four groups. From each group, average subjects (n=42) whose height and weight were close to the mean value ($mean{\pm}1/2$ S.D.) were selected. 42 subjects were divided up as four groups. Group I (n=7) was thigh and calf developed body type. Group II (n=9) was thigh developed body type. Group III (n=11) was calf developed body type. Group IV (n=15) was thigh and calf undeveloped body type. Four groups had distinct different at widths (n=4), depths (n=4), and girths (n=9) dimensions. The results showed that the muscular men in their 30s could be defined by thigh and calf girths. The thigh developed muscular men had thigh girth over 60cm and the calf developed muscular men had calf girth over 38cm. From each group one representative was selected by 3D body scan figure.

Nutritional and Health Status of Korean Elderly Living in America

  • Hye-Kyung Kim
    • 대한지역사회영양학회지
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    • 제3권5호
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    • pp.707-714
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    • 1998
  • This cross-sectional study was designed to describe in nutritional and health status of the Korean elderly residing in America using demographic variables, dietary, anthropometric and functional status indicators, and to investigate possible relationships among these variables. Sixty elderly persons aged 61-91 years were assessed in their homes. Dietary intake was estimated by the 24-hour recall and brief dietary questionnaire. The following anthropometric measures were taken : weight, height, knee height, triceps skinfold, and midarm circumference. Functional status was measured by activities of daily living(ADLs), instrumental activities of daily living(IADLs) questionnaires, and a measure of psychosocial status as "happiness score"(a life satisfaction questionnaire). Intakes of energy, calcium, magnesium, folacin, vitamin B6, and zinc were low in this elderly sample. Females 75 years of age and older had extremely low energy intakes. A large percentage of subjects reported difficulty with both activities of daily living and instrumental activities of daily living. Subjects over 75 years of age reported more difficulty than younger subjects for most activities. Gender differnces were seen in anthropometric variables and energy intake. Happiness scores were similar in subjects, regardless of age or gender, however, happiness score was significantly correlated with the energy and protein intake(p<0.05). Several difficulties were encountered during the assessment of this elderly sample. The conditions in the home were unpredictable and often inadequate for the anthropometric measures in particular. Further research is needed to improve current methodologies so that they may be more adaptable to the conditions found in homes. in homes.

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어깨 경사도에 따른 소매 유형별 블라우스의 착의선호도 - 세트인, 래글런, 기모노를 중심으로 - (Wearing Preference on the Types of Blouse according to Shoulder Angle - Focused on Set-in, Raglan and Kimono Sleeves -)

  • 신혜미;이명희
    • 한국의류산업학회지
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    • 제21권2호
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    • pp.163-170
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    • 2019
  • This study utilized the wearing test of subjects and a preference survey to determine wearing preference on types of blouses according to shoulder angle. The shoulder angles of the subjects were set as average shoulder, slopping shoulder, and square shoulder. The blouse sleeves were set as set-in, raglan, and kimono according to five domestic clothing construction books. A total of 15 blouses were made and tested by different bodices and sleeve types. The wearing test of subjects had the human subjects evaluate the appearance of the subject looking at the mirror while standing as well as evaluated the sensation test while not looking at the mirror. The preference survey was given to 100 females and was conducted using photos with combinations of three types of sleeves and shoulder angles in a survey under the same conditions. The average shoulder showed that set-in with the highest score in the wearing test was also preferred in the preference survey. The slopping shoulder evaluated the highest score in the wearing test by mirror; however, the preference survey showed that raglan was the most preferred choice. The squared shoulder showed that raglan with a high score in the wearing test by mirror was also preferred in the preference survey.

Psychophysical cost function of joint movement for arm reach posture prediction

  • 최재호;김성환;정의승
    • 한국경영과학회:학술대회논문집
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    • 대한산업공학회/한국경영과학회 1994년도 춘계공동학술대회논문집; 창원대학교; 08월 09일 Apr. 1994
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    • pp.561-568
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    • 1994
  • A man model can be used as an effective tool to design ergonomically sound products and workplaces, and subsequently evaluate them properly. For a man model to be truly useful, it must be integrated with a posture prediction model which should be capable of representing the human arm reach posture in the context of equipments and workspaces. Since the human movement possesses redundant degrees of freedom, accurate representation or prediction of human movement was known to be a difficult problem. To solve this redundancy problem, a psychophysical cost function was suggested in this study which defines a cost value for each joint movement angle. The psychophysical cost function developed integrates the psychophysical discomfort of joints and the joint range availability concept which has been used for redundant arm manipulation in robotics to predict the arm reach posture. To properly predict an arm reach posture, an arm reach posture prediction model was then developed in which a posture configuration that provides the minimum total cost is chosen. The predictivity of the psychophysical cost function was compared with that of the biomechanical cost function which is based on the minimization of joint torque. Here, the human body is regarded as a two-dimensional multi-link system which consists of four links ; trunk, upper arm, lower arm and hand. Real reach postures were photographed from the subjects and were compared to the postures predicted by the model. Results showed that the postures predicted by the psychophysical cost function closely simulated human reach postures and the predictivity was more accurate than that by the biomechanical cost function.

섬유·패션 산업 DB 구축을 위한 대구지역의 연간 피복환경내의 피부온과 쾌적성 -실내 제복을 중심으로- (A Study on the Comfort and Skin Temperature on the Clothing Environment in the Taegu City during Years -Concentrated on indoor uniforms-)

  • 류덕환;이욱자;김승진;송민규;조지현;정명선
    • 한국의류산업학회지
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    • 제1권4호
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    • pp.376-386
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    • 1999
  • The purpose of this study was to determine the physiological responses and the Subjective sensations of the human subjects when 10 human subjects(5 males and 5 females) were tested with selected ensembles, including the uniforms of students, industrial and bank workers. For the study, garment material and design were selected, which was mostly used in Taegu area by the survey. Thermal manikin and the human subject tests were performed. The results were as follows: 1. There was no significant difference among skin temperature of head by season and among that of breast and back by all variables, however, there was a significant difference among that of belly by gender and that of thigh and shank by season. In addition, there was no significant difference among rectal temperature by gender and season, but there was a significant difference by uniform. 2. Mean skin temperature of male subjects was significantly higher than that of female subjects. Specially in lower environmental condition, the difference got larger. 3. There was a significant difference among purse rate of subjects by uniform, but there was no significant difference among those by gender and season. There were no significant difference among maximum and minimum blood pressure by gender, uniform, and season. 4. There was a significant difference in temperature of chest among gender and uniform, and there was no significant difference in temperature of back by season. In addition, There was a significant difference in humidity of back by uniform and season but there were no significant difference in that by gender. 5. There was a significant difference in humidity sensation by gender, comfort sensation by uniform and season, but there was no significant difference thermal sensation by uniform and season. 6. For the result of regression analysis, we got the regression equations as follows: Clo=1.810 Thickness+0.525, Clo=0.475 weight+0.863.

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중·고등학교 성교육 관련 교과의 교육내용 분석 -제7차 교육과정을 중심으로- (An Analysis of the Contents of Sex Education for Middle and High School Students)

  • 한선희
    • 한국학교보건학회지
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    • 제14권2호
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    • pp.289-300
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    • 2001
  • The purpose of this study is to offer basic data on sex education for middle and high school students through content analysis of sex education subjects. The objects of this study were sex related subjects in the 7th grade curriculum and sex education guide books. The results were as follows: According to the results of analyzing sex education topics classified by grade, the 7th grade accounted for 35.2% of total topics, the 8th grade 2.9%, the 9th grade 2.9%, and the 10th grade 32.3%, the result of analyzing sex education topics classified by subject, showed 76.4% of total topics in sex education guide book, 29.4% were technique and domestic subjects, 20.5% were physical subjects, 17.6% were moral subjects, 8.8% were science subjects, 2.9% were society subjects. The domains which were chiefly concerned in sex education curricula for middle school students were "Human Development", "Relationship", and "Sexual Health". On the other hand, the domains which were mainly concerned with sex education curricula for high school students were "Relationship", "Sexual Behavior" and "Sexual Health". Most sex education subjects provided less instruction concerning "Personal Skills" and "Sexual Behavior" than other domains. The suggestion according to the results were as follows: It is desirable to teach sex education as an integrated subject. Especially, sex education should be a part of a comprehensive school health education program. Because this study focused on analyzing materials for teachers, further research is recommended to analyze sex education materials for students.

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Retinol, α-tocopherol, and selected minerals in breast milk of lactating women with full-term infants in South Korea

  • Kim, Hyesook;Jung, Byung-Mun;Lee, Bum-Noh;Kim, Yun-Je;Jung, Ji A;Chang, Namsoo
    • Nutrition Research and Practice
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    • 제11권1호
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    • pp.64-69
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    • 2017
  • BACKGROUND/OBJECTIVES: This study was performed to measure fat-soluble vitamins and minerals in breast milk of Korean lactating mothers who exclusively breastfed their babies. SUBJECTS/METHODS: Breast milk samples were collected from 334 mothers. Concentrations of retinol and ${\alpha}$-tocopherol were analyzed by high performance liquid chromatography ultraviolet spectrometry while concentrations of minerals were measured by inductively coupled plasma optical emission spectrometry. RESULTS: Retinol and ${\alpha}$-tocopherol contents of breast milk were $39.58{\pm}19.64{\mu}g/dL$ and $0.23{\pm}0.13mg/dL$, respectively. Average sodium, potassium, calcium, phosphorus, and magnesium levels in breast milk were $11.11{\pm}5.16$, $38.56{\pm}9.01$, $27.87{\pm}6.10$, $13.56{\pm}3.30$, and $3.05{\pm}0.65mg/dL$, respectively. Contents of trace elements such as iron, zinc, copper, and manganese were $40.26{\pm}46.21$, $98.40{\pm}62.47$, $24.09{\pm}9.03$, and $0.90{\pm}1.63{\mu}g/dL$, respectively. Fat-soluble vitamin concentration was positively correlated with total fat in milk samples, but no significant differences were observed in levels of retinol, ${\alpha}$-tocopherol, or minerals based on whether or not lactating women were taking dietary supplements. CONCLUSIONS: Micronutrient contents of breast milk samples from Korean lactating women were comparable to those of other nations. Retinol and ${\alpha}$-tocopherol levels were correlated and also with total fat in breast milk.

Haplotype Analysis and Single Nucleotide Polymorphism Frequency of Organic Cation Transporter Gene (OCT1 and 2) in Korean Subjects

  • Kim, Se-Mi;Lee, Sang-No;Yoon, Hwa;Kang, Hyun-Ah;Cho, Hea-Young;Lee, Il-Kwon;Lee, Yong-Bok
    • Journal of Pharmaceutical Investigation
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    • 제39권5호
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    • pp.345-351
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    • 2009
  • Organic cation transporters (OCTs) are important for absorption, elimination of many endogenous small organic cations as well as a wide array of drugs and environmental toxins. This gene is located in a cluster on chromosome 6 and OCTs are in major organs such as intestine, liver, kidney, brain and placenta. Therefore, expression levels and function of OCTs directly affect plasma levels and intracellular concentrations of drugs and thereby determine therapeutic response. The aim of this study was to investigate the frequency of the SNPs on OCT1 (C181T and C1022T) and OCT2 (G808T) to analyze haplotype frequency in healthy Korean population. Human subjects have been genotyped for OCT1 (C181T for 195 subjects and C1022T for 825 subjects), using polymerase chain reaction-based diagnostic tests (RFLP). And for OCT2 (G808T), a total of 861 subjects have been genotyped, using pyrosequencing method. Haplotype was statistically inferred using an algorithm based on the expectation-maximization (EM). OCT1 C181T genotyping showed 100% homozygous wild-type (C/C). OCT1 C1022T genotyping showed wild-type (C/C), heterozygous (C/T) and homozygous mutant-type (T/T) and each accounted for 72.1, 24.5 and 3.4%, respectively. OCT2 G808T genotyping results also showed homozygous wild-type (G/G), heterozygous (G/T) and homozygous mutant-type (T/T) and each took 81.8, 17.9 and 0.3%, respectively. Based on these genotype data, haplotype analysis between OCT1 C181T and OCT1 C1022T has proceeded. The result has revealed that linkage disequilibrium between alleles is not obvious (P=0.0122).

중학교 가정교과와 다른교과의 교육내용 관련성 분석 (A Analysis of the Relevance between Home Economics and Other Subjects in the Middle School)

  • 정정희;이송자;유태명
    • 한국가정과교육학회지
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    • 제10권1호
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    • pp.77-93
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    • 1998
  • The purpose of this study is two-fold. One is to provide the teachers of Home Economics with the basic reference data of the relevance between Home Economics and other subjects taught in the middle schools for the purpose of bringing out more efficient classroom teaching. The other is to help the teachers, the textbook writers, and the curriculum reformers improve the curricula of the middle school on the basis of this research. The conclusions drawn from this study are as follows: 1) The units of Human Development and Family Relationship should be taught with reference to Korean Language, Ethics, and Music. 2) The unit of Adolescence Development is dealt with in Physical Education and in Ethics as well, which seems to indicate that there was no interdisciplinary consideration and cooperation before/when the curricula were made. 3) The unit of Nutrition which appears in the first grade in Home Economics has a close relationship with the unit of Morphology and Physiology of Animals which appears in the second grade in Natural Science. It is thought that the interdisciplinary themes ought to be organized cooperatively among subjects for efficiency of study. 4) Since the unit of Clothing is not dealt with in the other subjects, ti can be developed in Home Economics on its own. 5) As the unit of Housing is closely related to Technology, it should be taught on the basis of Technology. 6) The textbooks of all subjects should be written based on the interdisciplinary research and cooperation. They should be organized in order not to overlap or repeat the same topic in the same level if it is not necessary.

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가족 동거 여부에 따른 남녀 노인의 식 행동과 영양소 섭취 실태 비교 분석: 국민건강영양조사 2013~2016 (Comparison Analysis of Dietary Behavior and Nutrient Intakes of the Elderly according to Their Family Status: The Korea National Health and Nutrition Examination Survey 2013-2016)

  • 오지홍;정복미
    • 대한지역사회영양학회지
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    • 제24권4호
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    • pp.309-320
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    • 2019
  • Objectives: This study was undertaken to compare dietary life of the elderly living alone and in a family, and to compare differences based on gender, for the 2013-2016 Korea National Health and Nutrition Examination Survey (KNHANES). Methods: The subjects included 2,612 elderly people aged over 65 years who participated in the health survey, health examination and nutrition survey. Subjects on a diet therapy were excluded. This study analyzed the general characteristics, dietary habits, daily energy and nutrient intakes, CPF ratio, estimated average requirement (EAR), nutrient adequacy ratio (NAR) and mean adequacy ratio (MAR), index of nutrient quality (INQ), and food consumption of the elderly living alone and in a family. We also compared the differences based on gender. Results: Daily intake of food, water, dietary fiber, potassium, retinol, and riboflavin were low in the male elderly subjects living alone. The elderly living with family revealed higher NAR and MAR as compared to the elderly living alone. Although all MAR values were <1, the elderly living alone had lower values. Considering the intake of food, the consumption of seaweed, fish and shellfish, and oils (animal) was higher in elderly men living with families, whereas women living with families consumed more vegetables, fruits, seaweeds and seafood, as compared to their counterparts living alone. Furthermore, analyzing the foods consumed by the elderly people living alone, female subjects consumed more seaweed, milk and animal oil as compared to male subjects. Conclusions: The results of this study indicate that the elderly living alone have poor nutrient intake as compared to the elderly living with families. Based on this research data, we recommend that it is necessary to improve the health and nutritional status of the elderly living alone.