Improved elliptical trainer biomechanics using a modified cardan gear

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Scopus citations

Abstract

Although many different kinematic structures have been employed in the design of elliptical machines for exercise and fitness, these devices in general do not produce pedal paths that promote lower extremity kinematics similar to overground gait. This is unfortunate given the growing interest in using these devices as a gait rehabilitation tool. In this paper, we present a novel design strategy for elliptical machines intended to create a movement profile that more closely simulates the lower extremity kinematics of gait. This involves replacement of the typical crank link with a modified Cardan gear system. Simulations of typical rear-drive (crank-rocker) and front-drive (crank-slider) elliptical designs validate the improvement in lower limb hip and knee kinematics using this approach, suggesting that assistive elliptical rehabilitation systems can be more optimally designed to promote normal lower extremity gait kinematics compared to currently available devices.

Original languageEnglish (US)
Title of host publicationASME 2012 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, IDETC/CIE 2012
Pages35-42
Number of pages8
EditionPARTS A AND B
DOIs
StatePublished - 2012
EventASME 2012 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, IDETC/CIE 2012 - Chicago, IL, United States
Duration: Aug 12 2012Aug 12 2012

Publication series

NameProceedings of the ASME Design Engineering Technical Conference
NumberPARTS A AND B
Volume4

Conference

ConferenceASME 2012 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, IDETC/CIE 2012
CountryUnited States
CityChicago, IL
Period8/12/128/12/12

ASJC Scopus subject areas

  • Modeling and Simulation
  • Mechanical Engineering
  • Computer Science Applications
  • Computer Graphics and Computer-Aided Design

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  • Cite this

    Nelson, C. A., & Burnfield, J. M. (2012). Improved elliptical trainer biomechanics using a modified cardan gear. In ASME 2012 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, IDETC/CIE 2012 (PARTS A AND B ed., pp. 35-42). (Proceedings of the ASME Design Engineering Technical Conference; Vol. 4, No. PARTS A AND B). https://doi.org/10.1115/DETC2012-70439