This study designs and evaluates a new nail clipper for the elderly using ergonomic methods. The nail clipper usage problems and requirements were collected first. After requirement analysis we applied ergonomic simulation in redesigning the nail clipper and developing a pedal plate. A usability test was conducted to evaluate both typical and newly developed nail clippers using 20 elder partici...

.................................................................................................................. 7 Introduction............................................................................................................ 7 Aim .......................................................................................................................... 7 Methods........................

this study tries to redesign the interior design of inter-city bus in order to fulfill needs of iranian user. the goal of this study is practically investigate how user centered design can be applied considering cultural needs of iranian user. by defining common needs between cultural and physical aspects of iranian user, the main focus was on improving the sitting condition of the traveler wit...

The Covid 19 pandemic makes the need for a washbasin in public place to prevent spread of virus. However, practice available washbasins are still not standardized and ergonomic. So that this study an ergonomic design was tried using DFMA (Design Manufacture Assembly) method. Because method aims improve design. Through method, it is possible produce products with shorter time number components m...

1. Abstract This paper describes the efforts of an interdisciplinary research team to design a generally applicable system for ergonomic optimization with respect to the physiological properties of the human body and the body’s interaction with the product. The articulation of biological principles in the form of optimization criteria, their implementation into efficient methods for musculoskel...

OBJECTIVE To extend an existing computer programme for the evaluation and design of shift schedules (BASS 3) by integrating workload as well as economic aspects. METHODS The redesigned prototype BASS 4 includes a new module with a suitable and easily applicable screening method (EBA) for the assessment of the intensity of physical, emotional and cognitive workload components and their tempora...

The goal of this paper is to survey the main issues with the ergonomic evaluation of MRS (Mixed Reality Systems) and to stimulate discussions for future research. A first point concerns definitions and specificities of MRS within the « reality / virtuality » continuum, and the incorporation of user issues. Another point concerns the combinatory character of the ergonomic knowledge to be applied...

The purpose of this study was to determine if ratings of discomfort differ over time between two ergonomic chairs of the same approximate cost. Twenty participants from a metropolitan university sat on two types of ergonomic chairs for 90~minutes in each of two sessions while performing typing, reading, and writing tasks. Repeated measures three-way and two-way analyses of variance were used to...

An approach for quick assessment of the exposure to ergonomic risks on computer-aided office workplaces in a company is developed. It includes a checklist considering the following ergonomic dimensions: work organization, displays, input devices, furniture, work space, environment, software and health hazards. By the checklist, data on workplace exposure to ergonomic risk factors are collected....