title: A new design for an old concept of wheelchair pushrim.
abstract: OBJECTIVE
  Report on the development of an ergonomic manual wheelchair pushrim and evaluate the user's perception of the quality of the device.
  
  
  METHODS
  Based on anthropometric features and ergonomic concepts, a new wheelchair pushrim was designed, and a prototype was manufactured in polyurethane, using the rapid prototyping technique and serial production of parts by molding. The prototype was tested by a sample of wheelchair users, who rated the perceived quality of the device after testing both the new and conventional pushrims in a wheelchair propulsion experimental protocol.
  
  
  RESULTS
  The new ergonomic pushrim was found to be, in general, better than the conventional round tube pushrim. Specifically, experienced wheelchair users found the new wheelchair pushrim better in terms of easy and comfortable propulsion, braking and maneuvering of the wheelchair, and appearance.
  
  
  CONCLUSIONS
  The new wheelchair pushrim provides a proper fit for the hands due to its ergonomic design and its polyurethane composition, making wheelchair propulsion easier and more comfortable than the conventional wheelchair pushrim. Assistive technology devices should be design based on ergonomic concepts that involve less effort and offer greater comfort for the user. [Box: see text].
authors: Programme of Post-graduation Interunits in Bioengineering, University of Sao Paulo, Sao Carlos, Brazil. fmedola@yahoo.com.br
authors: Fausto Orsi
authors: FO
authors: Medola
authors: Carlos Alberto
authors: CA
authors: Fortulan
authors: Benedito de Moraes
authors: Bde M
authors: Purquerio
authors: Valeria Meirelles Carril
authors: VM
authors: Elui
mesh_terms: D000328:Adult; D003198:Computer Simulation; D004867:Equipment Design; D006804:Ergonomics / Q000295:instrumentation*; D006801:Humans; D008297:Male; D011140:Polyurethanes; D014584:User-Computer Interface; D014910:Wheelchairs
chemical_list: D011140:Polyurethanes