• International Journal of Precision Engineering and Manufacturing
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• 제7권3호
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• pp.66-71
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• 2006

Some wheelchair users with neuromuscular disorders experience involuntary extensor thrusts, which may cause injuries via impact with the wheelchair, cause the user to slide out of the wheelchair seat, and damage the wheelchair. Knowledge of the human-generated forces during an extensor thrust is of great importance in devising safer, more comfortable wheelchairs. This paper presents an efficient method for identifying human-generated forces during an extensor thrust. We used an inverse dynamic approach with a three-link human body model and a system for measuring human body motion. We developed an experimental system that determines the angular motion of each human body segment and the force at the footrest, which was used to overcome the mathematical indeterminacy of the problem. The proposed method was validated experimentally, illustrating the force-identification process during an extensor thrust.

• 대한인간공학회지
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• 제3권1호
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• pp.19-24
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• 1984

As in dynamic muscular activity, to support one's body may be regarded as the static workload. An examination is made of the relationship between heart rate and oxygen uptake of three male graduate students in static working postures (sitting, squatting and standing). Though it has been believed that there exists a linear relationship between heart rate and oxygen uptake, this thesis shows that both have no relationship in the case of static postures, and that they may depend upon the characteristics of postures rather than the static workload. These results are discussed analytically. The additivity between static body postures and holding up one's hands at his maximum height is tested. Compared with the sum of energy expenditure in balancing one's body and holding up hands, the net rate of energy expenditure in performing them simultaneously is equivalent. In the case of static postures, the importance of the awareness of the characteristics and relevance of the measures is discussed.

• 대한전자공학회논문지
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• 제20권6호
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• pp.81-87
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• 1983

심전도는 심장근육세포와 홍분세포들의 활동전위의 전파에 따른 전파에 의해 발생한다. 활동전위의 재분극상은 임상적 요인에 매우 민감하다. 따라서. 역심전도에 관한 본 논문에서는, 디지탈 신호 추정방법으로 심전도의 재분극상에서의 일정활동전위(uniform action potential)를 추정하는 방법을 연구하였다. 추정된 정상인의 활동전위는 임상적 자료와 비슷한 재분극상을 보였다.

• Preventive Nutrition and Food Science
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• 제7권1호
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• pp.88-94
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• 2002

The purpose of this study was to identify factors influencing the consumption of calcium-rich foods among adolescents. A total of 96 adolescents divided into twelve focus groups were investigated during April to May 2000 in Busan. Focus group discussions were audio-taped, transcribed and analyzed using a grounded theory approach. Key factors influencing the consumption of calcium-rich foods were taste, food type, body image, and family. Motivators among the factors were taste, flood type, body image, health, family and perception, and barriers were taste, flood type, location, friends, price, weather and lactose intolerance. Taste, flood type, location and weather were found to be both motivators and barriers of consumption of calcium-rich floods according to circumstances. Some of these factors varied in importance by gender and age. Younger adolescents were more strongly influenced by taste and family than older ones. Older adolescents were strongly influenced by body image, convenience and perception. These findings could be used as a guideline for adolescents to consume calcium-rich foods.

• 한방비만학회지
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• 제5권1호
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• pp.133-140
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• 2005

The prevalence of obesity at all ages in increasing epidemically worldwide. There were many study of an indirect method on fat mass measurement in obesity, but were few study to determine the possible relationships between local fat deposition and health-related fitness parameters in overweight and obesity. We has reviewed on the somatotype characteristics, ideal posture and biomechanics, and adipose tissue of connective tissue, myofacia continuity. We consider that these unique 'whole systems' view is of vital importance to understanding the role of adipose tissue in musculoskeletal system and to application of body shape correction program.

• 생명과학회지
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• 제17권6호통권86호
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• pp.867-872
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• 2007

The aging is related to numerous changes in our body system which declines functional ability. The functional ability in advanced age can be evaluated by the 4 components of fitness (cardiorespiratory endurance, muscular strength and endurance, flexibility and body composition). The understanding and knowledge of changing 4 components of fitness and the role of exercise on the process of aging is of paramount importance. Despite exercise and physical activity have been shown to delay the process of aging, the exercise guidelines and recommendations for old adults are not well published. This review is to presents the age-related changes in each component of fitness and to present current guidelines and recommendations for exercise in older adults.

• 한국안전학회지
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• 제12권2호
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• pp.70-79
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• 1997

This paper presents a study on the fuzzy linguistic variable based approach for safety assessment of human body in ELF electromagnetic field considering power system states. To cope with the demand in modern industry, the power system becomes larger in scale, higher in voltage. The advent of high voltage system has increased the relative importance of field effects. The analysis of ELF electromagnetic field based on Quasi-Static Method is introduced while the power system is included to model the expected and/or unexpected uncertainty caused by the load fluctuation and parameter changes. In order to analyze the power system, Monte Carlo simulation method and contingency analysis method are adopted in normal state and alert state, respectively. In the safety assessment of human body, the approach based on fuzzy linguistic variable is employed to overcome the shortcomings resulting from a crisp set concept. The suggested scheme is applied to a sample system(modified IEEE 14 bus system) to validate the usefulness.

• 기본간호학회지
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• 제14권1호
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• pp.83-91
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• 2007

Purpose: This study was done to examine the differences in the fluid volume deficit according to levels of depression and BMI. The results of this study will provide fundamental information for developing nursing interventions for hydration management. Method: The participants were 51 hospitalized elderly people in K province. Data were collected from September 4 to 30, in 2006. A structured questionnaire was used for the data collection. Frequencies, Percentages, Means, Standard Deviation, t-test, Mann-Whitney U test, and Kruskal-Wallis test were used with the SPSS Program to analyze the data. Results: There were significant differences in the fluid volume deficit between elders in the depressed and normal groups. Participants who had a BMI of less than $21kg/m^2$ had the highest fluid volume deficit. Conclusion: Water is an essential part of the human body although it is least studied in elderly people. Health care providers need to increase awareness of the importance of hydration status among hospitalized elderly people with chronic illnesses.

• 한국정보통신학회논문지
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• 제25권12호
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• pp.1964-1967
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• 2021

Recently, to improve the effectiveness of education to learn from textbooks, immersive 3D environments such as virtual reality(VR) has been widely used for education. In this paper, in order to intuitively present education about content scenarios on changes in the human body according to food intake, we consist an immersive virtual reality environment to express the same life-size organs. The participants in our educational system showed higher results in all items compared to the existing textbook-based education such as immersion, understanding, and quality of education program. Also it was found the importance of interactivity to increase the effectiveness of immersive class.

• 복식문화연구
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• 제25권2호
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• pp.224-236
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• 2017

Kimono sleeves have continuously appeared in modern fashion as a design motif and this trend has become increasingly prevalent recently. However for research in the area of clothing composition for kimono sleeves in Korea, there has been a lack of development of master patterns based on basic data from the analysis of the standard body type of Korean people and finalized designs based on comparative experiments and analysis of pre-existing research Thus, there is no ideal master kimono sleeve pattern development research based on the examination of the results of the analysis of the standard body type of Korean people. Therefore by recognizing the importance of developing a master kimono sleeve pattern, this research aims to present a practical master kimono sleeve pattern for the standard body type of someone in their 30s. First, the four master patterns were collected and a dressing evaluation was conducted, and by selecting and improving one of these master designs, a final research master pattern was developed after a second dressing evaluation. Through this research, it was possible to design a master kimono sleeve pattern appropriate both externally and functionally for the standard body type of someone in their 30s, which has not been a consideration in previous research.