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that basic anthropometric safety designs offer one of the possible ways to prevent such injuries. Task analysis shows that issues such as prevention of entanglement of the infant due to accidental folding and the non-straining configuration for mother are interconnected with each other. Consequently, they need to be tackled simultaneously. Research presented here is the basis for an improved construction which provides a safer design while maintaining the convenience of easy access in and out of the playpen as well as the ability to fold and easily transport or store the playpen. Improvements incorporated here are supported by a thorough biomechanical evaluation of the proposed playpen. 23.4.36 (125191) Burns, C A and Potts, A 'Design of a patient restraint system' in Boyer, D and Pollack, J (eds) Interface '91, Proc Seventh Syrup on Human Factors and Industrial Design in Consumer Products, Dayton, Ohio.
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## ABSTRACTS symbols were not used in this study, projections from the data indicate that such symbol sizes at 152 cm would provide comparable discrimination scores to the 4 mm 2 at 61 cm. Improved visual discrimination of stand-alone symbols occurs with gaps or changes in the angles of symbols, s
Information obtained from the elderly and from design-related criteria was used to develop a product which could assist them in accomplishing a difficult activity independently. Interviews and questionnaires were conducted with independently living elderly in order to identify which daily activities