Abstract
As ergonomics has become an integral part of the design process, digital human modeling is a rapidly emerging area that links computer-aided engineering design, human factors engineering and applied ergonomics. This paper briefly presents some of the basic principles of user-centered design and their relationship to ergonomics, together with the application of digital human modeling (DHM) in the design process of an assistive walking aid for elderly users with low mobility, considering the assessment of risk and comfort of the system. The use of DHM in order to improve certain features of a system or product is not a new concept, various types of digital human models being used for over 35 years. Using the Human Builder module in CATIA V5 two human models are generated with the help of anthropometric data collected from a group of >65 years old participants living in assistive care centers. The models are further employed in testing the safety and comfort level of the walking aid currently used by the participants, resulting the need of immediate changes in the device.
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