Hicheon Yoo

For the development of a better product which fits to the target user population, physical workloads such as reach and visibility are evaluated using digital human simulation in the early stage of product development; however, ergonomic workload assessment mainly relies on visual observation of reach envelopes and view cones generated in a 3D graphic environment. The present study developed a quantitative assessment method of physical workload in a digital environment and applied to the evaluati

This study was aimed to find out the problems of wearing flame-proof clothing and to analytically assess func-tional working-clothes, thus to propose a new design. We carried out a questionaire with workers in the field and eval-uated the facility for wearing, the sensation of wearing and clothing microclimate in the environmental chamber. We foundout the problems were in the parts of neck, armpits, armhole, sleeve, crotch and suspenders. Thermal sensation, wet sen-sation and comfort sensations

배경 및 목적: 본 연구에서는 노년층을 대상으로 개발된 삼킴 평가 프로토콜(Swallowing Monitoring & Assessment Protocol, SMAP) 중 ‘삼킴기능’ 및 ‘삼킴관련 삶의질’과 관련된 하위영역과 삼킴장애지수(Korean-Dysphagia Handicap Index, K-DHI) 간에 공인타당도(concurrent validity) 검증을 실시하여 SMAP의 타당성을 확보하고자 하였다. 방법: 전국 16곳의 노인복지관이나 경로당에서 조사된 노인 총 579명 중 삼킴 문제를 호소하지 않거나(447명), 신경계 질환 병력이 있는(41명) 대상자를 제외한 총 91명(남 20명, 여 71명; 평균연령 78±6.47세)을 대상으로 하였다. 지필검사 또는 전자패드 애플리케이션을 활용하여 SMAP과 K-DHI에 대한 응답을 자가보고하였다. 개별 반응들은 점수화하여 피어슨 상관분석을 실시하였고, 두 평가도구 문항들 중 유사한 내용을 측정하는 13개 문항들의 응답빈도를

This study investigated the degree of inconvenience in existing ready-made clothes and clothing preferencesthrough a survey of 197 wheelchair-bound males in order to provide preliminary data for the developmentof a suit that considers the physical characteristics and requirements of the disabled in wheelchairsfor improved quality of living and positive interpersonal relations. Among the survey respondents, the 30sto 40s age group was the largest at 71.6%. The most common type of disability was m

This study verified the effect of summer flight ventilation developed in a previous study based on wearingcomfort evaluation. Seven healthy males in their twenties volunteered for this experiment conducted in aclimatic chamber. The experiment consisted of three consecutive periods of rest (20 minutes), running on a treadmill (10 minutes) andrecovery (20 minutes). A comparative evaluation was conducted on the general flight suit which had no ventilation holesand summer flight suit that usesubject

The present study evaluated a preliminary control room (CR) design of radioactive waste facility using the JACK®human simulation system. Four digital humanoids (5th, 50th, 95th, and 99th percentiles) were used in the ergonomic evaluation. The first three were selected to represent 90% of the target population (Korean males aged 20 to 50 years) and the last to reflect the secular trend of stature for next 20 years in South Korea. The preliminary CR design was assessed by checking its compliance t

Purpose: The present study developed formulas for estimation of standard liver volume (SLV) with high accuracy for the Koreanpopulation. Materials and Methods: SLV estimation formulas were established using gender-balanced and gender-unbalanced measurementsof anthropometric variables, body composition variables, and abdominal geometry of healthy Koreans (n=790). Total livervolume excluding blood volume, was measured based on CT volumetry. Results: SLV estimation formulas as preferred in various

This study aimed to develop an optimal sizing system and a draping pattern for hip protector based on an analysis of anthropometric characteristics of Korean older women. A hip protector is a specialized form of pants or underwear containing pads along the outside of each hip. The 3D body scan data of Korean older women were analyzed to identify their anthropometric characteristics and a four-size system with 93% of population accommodation was developed by clustering analysis based on key dimen

Objective: The present study developed a comprehensive usability testing and analysis framework based on a physical interface model of product and user and applied the proposed framework to usability testing of canister-type vacuum cleaner. Background: The development of a user-centered product design is important to satisfy customers who want to use the product with ease of use and to keep the manufacturer competitive in the market. Method: The proposed testing and analysis framework consists o

We surveyed the wearing characteristics of hip protectors. The problems of existing hip protectors were identified and the directions for improvement were presented. The evaluation of wearing characteristics was conducted on the 100 elderly women (60 to 85 years) with 5 types of hip protector. The questionnaire was composed of history and characteristics on falling, hip protector acceptance, preference, use characteristics and improvement requirements. The result of wearing characteristic evalua

본 설문은 기능성 의복의 인간공학적 평가 체계 구축을 목적으로 고열 작업복 착용 작업특성을 분석하기 위하여 포항 공대 인간공학설계기술 연구실에서 고안한 것입니다. 주어진질문을 읽으시고 해당란에 기입하여 주십시오. 설문시간은 5~10분 정도 소요됩니다.

This study develops a sizing system of mass-customized male suits for wheelchair users. One hundred and three male wheelchair users’ 21 anthropometric dimensions were measured to identify body shapes and develop a sizing system. The measured wheelchair users’ body sizes were compared with the average body sizes of Korean males from the 6 th Korean Body Size Survey to understand the body size differences between two groups. As a result of body shape classification using the KS’s Drop method, whee

Drivers’ sitting strategies are considered in car seat design. Existing research has identified representative sitting strategies by visual inspection of seating pressure measurements collected from a small sample size of drivers. The present study recruited 20 female and 20 male participants, measured seating pressure, and classified sitting strategies by cluster analysis. The participants’ sitting postures were classified based on seating pressure distribution into mid-back and scapular, mid-b

The operating tasks of overhead crane have caused undue stress to the operators from physical, mental, and environmental workload. Existing workload assessment models for musculoskeletal disorders such as OWAS, RULA, and QEC have limited applicability to the crane operating tasks because they focus mainly on physical factors and do not consider the relative importance of each factor. The present study was to develop a workload assessment model customized to overhead crane operation, following a

An analysis of biosignal and performance data collected during driving has increasingly employed in research to explore a human-vehicle interface design for better safety and comfort. The present study developed a protocol and a system to effectively analyze biosignal and driving performance measurements in various driving conditions. Electrocardiogram (ECG), respiration rate (RR), and skin conductance level (SCL) were selected for biosignal analysis in the study. A data processing and analysis