• Title/Summary/Keyword: Human Subjects

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Effect of Wearing Compression Clothing on Body Shape (압박의류 착용에 의한 신체변화 연구)

  • Kim, Tae-Gyou;Song, Min-Kyu
    • Fashion & Textile Research Journal
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    • v.12 no.2
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    • pp.233-239
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    • 2010
  • The purpose of this study was to determine the effect of compression clothing on the body shape of the human subjects. Thirty seven healthy females being overweighted with local adiposity on the buttocks and legs between the ages of 20's to 50's were used as the human subjects for the study. The selected subjects wore the compression clothing during 60 days by 8 hours a day. At the start(T0), after 30(T30) and after 60 days of treatment(T60), a cutaneous echography was measured on the right trochanter area of each volunteer in order to assess the thickness of the subcutaneous fatty tissue. At the start(T0), after 30(T30) and after 60 days of treatment(T60), the body weight of each volunteer was taken and the instrumental variations of skinfold measurements of the abdominal fold and inner thigh circumference of the waist, hips and thigh were conducted. The results show that the echography and weight loss of subjects were reduced to 8.34% and 2.08% after 60 days, respectively. Moreover, the skinfold of subjects was also reduced. Finally, skin elastometry of subjects increased.

Identification of target subjects and their constraints for automated MEP routing in an AEC project

  • Park, SeongHun;Shin, MinSo;Kim, Tae wan
    • International conference on construction engineering and project management
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    • 2022.06a
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    • pp.776-783
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    • 2022
  • Since Mechanical, Electrical, and Plumbing(MEP) routing is a repetitive and experience-centered process that requires considerable time and human resources, if automated, design errors can be prevented and the previously required time and human resources can be reduced. Although research on automatic routing has been conducted in many industries, the MEP routing in AEC projects has yet to be identified due to the complexity of system configuration, distributed expertise, and various constraints. Therefore, the purpose of this study is to identify the target subjects for MEP routing automation and the constraints of each subject. The MEP design checklist provided by a CM company and existing literature review were conducted, and target subjects and constraints were identified through process observation and in-depth expert interviews for five days by visiting a MEP design company. The target subjects were largely divided into six categories: air conditioning plumbing, air conditioning duct, restroom sanitary plumbing, heating plumbing, and diagram. The findings from interviews show that work reduction and error reduction has the greatest effect on air conditioning plumbing while the level of difficulty is the highest in air conditioning duct and restroom sanitary plumbing. Major constraints for each subject include preventing cold drafts on air conditioning pipes, deviation in ventilation volume in air conditioning ducts, routing order on restroom sanitary plumbing, and separation distance from the wall on heating plumbing. In this way, subjects and constraints identified in this study can be used for MEP automatic routing.

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The Effect of Stress Reduction of Human Body by the Vibroacoustic Equipment (음향진동장치에 의한 인체의 스트레스 저감 효과)

  • Moon, D.H.;Kim, Y.W.
    • Journal of Power System Engineering
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    • v.11 no.2
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    • pp.32-37
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    • 2007
  • The present study describes the effects of music and vibroacoustic stimuli to the relaxation of human body. We have carried out the experiment on 6 human subjects of which are composed 3 men and 3 women. We have investigated the electroencephalogram(EEG) of all subjects before and after the stimuli of which are made a strong noise or the meditatiom music and the acoustic vibration. The vibroacoustic device has transmitted meditation music as vibration between 20Hz and 250Hz to the body. From the experimental results, we made sure the effects that the meditation music and vibroacoustic stimuli influenced the stress reduction of human body for good as alpha wave was increased continuously during the good stimuli and after that.

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A Study of Physiology Signal Change by Air Conditioner Temperature Change (에어컨 온도변동에 따른 생리신호 변화에 관한 연구)

  • Kum, Jong-Soo;Kim, Dong-Gyu;Kim, Hyung-Chul
    • Journal of Fisheries and Marine Sciences Education
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    • v.19 no.3
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    • pp.502-509
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    • 2007
  • This study evaluates thermal comfort by air conditioner temperature raising at the point of time that human body begins to adapt. Thermal comfort according to change of time enters by uncomfortable area gradually at general cold room temperature that magnetic pole is in human body. However, can know that keep continuous thermal comfort in case raise temperature in human body adaptation visual point. Experiments were performed in environmental chamber. Subjects were selected 4 men and 4 women whose life cycle were proved that are similar. The subjects stay in the pretesting room during the 30 minutes and enter the testing room under each experiment conditions. During the experiment, brain wave, electrocardiogram, blood pressure and thermal comfort and sensation responses were measured. In this study, physiological and psychological responses correspond under temperature raising at human body adaptation.

Development of Syllabuses for Biological Nursing Science Subjects based on Learning Outcomes: Structure and Function of Human Body, Pathogenic Microbiology, Pathophysiology, and Mechanisms and Effects of Drugs (학습성과를 기반으로 한 기초간호학 교과목의 강의계획서 개발: 인체 구조와 기능, 병원미생물학, 병태생리학, 약물의 기전과 효과)

  • Park, Hyunju;Kim, Yun-Kyung;Kim, Joo Hyun;Jeong, Jae Sim;Choi Kwon, Smi;Hong, Hae Sook
    • Journal of Korean Biological Nursing Science
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    • v.17 no.2
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    • pp.188-210
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    • 2015
  • Purpose: The purpose of this study was to develop syllabuses of basic nursing science subjects (Structure and Function of Human Body, Pathogenic Microbiology, Pathophysiology, and Mechanisms and Effects of Drug) based on learning outcomes. Methods: We developed a 3-phase plan to develop the syllabuses. In the first phase, The Korean Society of Biological Nursing Science (KSBNS) held a workshop in May, 2013 in which professors who are in charge of basic nursing science subjects shared opinions about learning outcomes. As a result, initial prototype syllabuses came out. In the second phase, revised syllabuses based on learning outcomes were presented and discussed in the conference held by KSBNS in November, 2013. In the last phase, a research team who taught basic nursing science subjects finalized the syllabuses during the meetings. Results: Syllabuses of 4 basic nursing science subjects were developed. Conclusion: These syllabuses of 4 subjects need to be disseminated throughout nursing colleges. Further revision needs to be made according to the circumstances and context of each school.

Investigation of Weight Control and Nutritional Knowledge of Juvenile Delinquents (비행청소년의 체중조절과 영양지식에 관한 연구)

  • Lee, Jung-Suk;Kim, Seok-Hwan;Lee, Hyun-Ja;Lee, Chun-Bok;Song, Byeng-Chun;Kim, Eun-Kyung
    • Journal of the Korean Society of Food Culture
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    • v.24 no.1
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    • pp.96-105
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    • 2009
  • This study was conducted to identify the factors associated with weight control and nutritional knowledge of juvenile delinquents. The average heights of the subjects in this study were 172.20 cm (male) and 160.89 cm (female), and the average weights were 66.73 kg (male) and 58.42 kg (female), and the BMIs (Body Mass Index; $kg/m^2$) were 22.46 (male) and 22.54 (female). The results of this study revealed that 41.4% of the subjects were over weight or obese. In addition, there were significant differences in the BMI, satisfaction with body image and perception of body image observed between male and female subjects. Furthermore, female subjects were more experienced at weight control than male students (p<0.001). Additionally, overweight and obese individuals had more experience with weight control than subjects that were not overweight. Moreover, there were significant differences in the reason that subjects took weight control measured between male and female students. Specifically, female subjects practiced weight control due to their appearance (p<0.001). The order of methods by which male subjects attempted to control their weight was exercise>diet control>starvation and for girl student were diet control>starvation>excercise. The nutritional knowledge scores were higher for female subjects than for mele subjects. In addition, the nutritional knowledge scores increased as the BMI value increased and the $father^{\circ}{\emptyset}s$ educational level increased. These results of this study could be useful data to plan and develop nutritional education programs for juvenile delinquents.

Food Habits, Nutritional Knowledge, Nutritional Risk Factors and Health-Related Lifestyle of Korean Outpatients Aged Over 50 Years Taking Supplements

  • Kim, Jin-Sook;Lee, Mi-Young;Lee, Jeong-Hee;Cheong, Sun-Hee;You, Hae-Eun;Chang, Kyune-Ja
    • Journal of Community Nutrition
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    • v.4 no.2
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    • pp.109-117
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    • 2002
  • The purpose of this study was to investigate food habits, nutritional knowledge, nutritional risk factors, health-related lifestyle, health status and dietetic therapy in Korean middle-aged and elderly outpatients taking supplements. A cross-sectional survey was conducted from July to December in 2001. Subjects were 1702 (male 731, female 971) age-related chronic disease outpatients aged over 50 years. Data was collected using a standardized Questionnaire by in-person interview and analyzed by SPSS system. The subjects with supplement had significantly lower nutritional knowledge, higher nutritional risk factors, undesirable lifestyle, and lower self-reported health status compared to those without supplement. However, the subjects with supplement had desirable (cod habits and more concern about health compared to those without supplement. Age-related chronic disease group with supplement had significantly undesirable food habits, lower nutritional knowledge and higher nutritional risk factors compared to control group with supplement. Age-related chronic disease group without supplement had significantly desirable food habits, higher nutritional knowledge, lower self-reported health status and higher stress compared to control group without supplement. Therefore, these results may provide basic information for proper supplement of Korean middle-aged and elderly outpatients.

Bioavailability of plant pigment phytochemicals in Angelica keiskei in older adults: A pilot absorption kinetic study

  • Correa, Camila R.;Chen, C.Y. Oliver;Aldini, Giancarlo;Rasmussen, Helen;Ronchi, Carlos F.;Berchieri-Ronchi, Carolina;Cho, Soo-Muk;Blumberg, Jeffrey B.;Yeum, Kyung-Jin
    • Nutrition Research and Practice
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    • v.8 no.5
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    • pp.550-557
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    • 2014
  • BACKGROUND/OBJECTIVES: Angelica keiskei is a green leafy vegetable rich in plant pigment phytochemicals such as flavonoids and carotenoids. This study examined bioavailability of flavonoids and carotenoids in Angelica keiskei and the alteration of the antioxidant performance in vivo. SUBJECTS AND MATERIALS: Absorption kinetics of phytochemicals in Angelica keiskei were determined in healthy older adults (> 60 y, n = 5) and subjects with metabolic syndrome (n = 5). Subjects consumed 5 g dry Angelica keiskei powder encapsulated in gelatin capsules with a low flavonoid and carotenoid liquid meal. Plasma samples were collected at baseline, 0.5, 1, 2, 3, 4, 5, 6, 7, and 8 h. Samples were analyzed for flavonoids and carotenoids using HPLC systems with electrochemical and UV detection, respectively, and for total antioxidant performance by fluorometry. RESULTS: After ingestion of Angelica keiskei increases in plasma quercetin concentrations were observed at 1-3 and 6-8 hr in the healthy group and at all time points in the metabolic syndrome group compared to baseline (P < 0.05). Plasma lutein concentrations were significantly elevated in both the healthy and metabolic syndrome groups at 8 hr (P < 0.05). Significant increases in total antioxidant performance were also observed in both the healthy and the metabolic syndrome groups compared to baseline (P < 0.05). CONCLUSIONS: Findings of this study clearly demonstrate the bioavailability of phytonutrients of Angelica keiskei and their ability to increase antioxidant status in humans.

Analyzing the Size and the Characteristics of Korean Ear for the Ergonomic Design of Ear Related Products (인간공학적 귀 관련 제품설계를 위한 한국인의 귀의 치수 및 특성 분석)

  • Jung, Hwa-Sik
    • IE interfaces
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    • v.13 no.2
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    • pp.147-156
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    • 2000
  • It is known that the human stature and its related dimensions generally increase until the late teens or early twenties, remain relatively constant throughout early adulthood, and decline from early-to-middle adulthood into old age. However, there is exception that the length of the human ears, which continue to grow throughout life. In this study, 600 Korean male and female subjects aging from 17 to 89 were selected. Four different points of external ears including Pinna length, ear connection point length, Concha length, and Lobule thickness were measured along with other relative subjects' demographic data(e.g., age, stature, weight) to determine the relationship among these obtained data. The results showed that the age, sex, and different ethnic populations were functions of ear dimensions similar to the human stature. For example, the Pinna length increases as the age increases(r= 0.689, p<0.00l). The primary objective of this study was thus to provide anthropometric dimensions of Korean ear for the product designers and recommend the appropriate product design solutions in relation to human ear. Based on the results of this study, it is suggested that the continuing growth of the human body parts should be considered in the application of anthropometric data to the design of the things especially for human use.

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