Investigations of roll-over shape: implications for design, alignment, and evaluation of ankle-foot prostheses and orthoses

Disability and Rehabilitation
Andrew H Hansen, Dudley S Childress

Abstract

The purpose of this article is to provide an overview of our previous work on roll-over shapes, which are the effective rocker shapes that the lower limb systems conform to during walking. This article is a summary of several recently published articles from the Northwestern University Prosthetics Research Laboratory and Rehabilitation Engineering Research Program on the topic of roll-over shapes. The roll-over shape is a measurement of centre of pressure of the ground reaction force in body-based coordinates. This measurement is interpreted as the effective rocker shape created by lower limb systems during walking. Our studies have shown that roll-over shapes in able-bodied subjects do not change appreciably for conditions of level ground walking, including walking at different speeds, while carrying different amounts of weight, while wearing shoes of different heel heights, or when wearing shoes with different rocker radii. In fact, results suggest that able-bodied humans will actively change their ankle movements to maintain the same roll-over shapes. The consistency of the roll-over shapes to level surface walking conditions has provided insight for design, alignment and evaluation of lower limb prostheses and orthoses. Cha...Continue Reading

References

Oct 24, 2003·Prosthetics and Orthotics International·A H HansenM L Edwards
Apr 28, 2004·Clinical Biomechanics·Andrew H HansenErick H Knox
Sep 1, 2004·Journal of Biomechanics·Andrew H HansenKent P Mesplay
Nov 24, 2004·Journal of Rehabilitation Research and Development·Andrew H Hansen, Dudley S Childress
Jan 25, 2005·Human Movement Science·Andrew H HansenSteve C Miff
Feb 4, 2005·Medicine, Conflict, and Survival·Margrit R MeierDudley S Childress
Feb 19, 2005·Science·Steve CollinsMartijn Wisse
Sep 28, 2005·Journal of Rehabilitation Research and Development·Andrew H Hansen, Dudley S Childress
Oct 7, 2006·The Journal of Experimental Biology·Peter G AdamczykArthur D Kuo
Dec 13, 2006·Prosthetics and Orthotics International·Andrew H HansenDudley S Childress
Jun 7, 2007·Journal of Rehabilitation Research and Development·Stefania Fatone, Andrew H Hansen
Jan 22, 2009·Journal of Biomechanical Engineering·Ryan J WilliamsSteven A Gard
May 19, 2009·Journal of Biomechanics·Carolin CurtzeBert Otten

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Citations

Feb 22, 2014·PloS One·Robert D GreggJonathon W Sensinger
May 9, 2014·Journal of Rehabilitation Research and Development·Andrew HansenMarilyn Weber
Jul 16, 2014·Journal of Rehabilitation Research and Development·Margrit R MeierAndrew H Hansen
Jan 6, 2015·IEEE Transactions on Robotics : a Publication of the IEEE Robotics and Automation Society·Robert D GreggJonathon W Sensinger
Jan 2, 2015·IEEE Transactions on Control Systems Technology : a Publication of the IEEE Control Systems Society·Robert D Gregg, Jonathon W Sensinger
Dec 6, 2012·IEEE Transactions on Bio-medical Engineering·Elliott J RouseJonathon W Sensinger
Jan 6, 2015·Journal of Neuroengineering and Rehabilitation·Michael R TuckerRoger Gassert
Jul 10, 2013·Journal of Foot and Ankle Research·Saeed ForghanyBarry Richards
Apr 13, 2011·Journal of Biomechanics·Andrew Sawers, Michael E Hahn
Dec 3, 2009·Physical Medicine and Rehabilitation Clinics of North America·Justin Z Laferrier, Robert Gailey
Feb 13, 2013·Prosthetics and Orthotics International·Mokhtar ArazpourAndrey Y Aksenov
Sep 9, 2017·Prosthetics and Orthotics International·Elaine OwenAndrew Hansen
Dec 3, 2016·The Journal of Experimental Biology·Karl E Zelik, Peter G Adamczyk
Sep 27, 2018·PloS One·Sara R Koehler-McNicholasAndrew H Hansen
Nov 8, 2017·Journal of Neuroengineering and Rehabilitation·David J ReinkensmeyerThomas Corfman
Jan 1, 2014·Journal of Rehabilitation Research and Development·Daphne WezenbergHan Houdijk
Dec 20, 2019·Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine·Shreeshan JenaSubrata Kumar Panda
Jan 28, 2021·Military Medicine·Vamsidhar Reddy RajulaBrian Kaluf
Nov 24, 2020·Prosthetics and Orthotics International·Elizabeth Russell EspositoJason M Wilken
Oct 26, 2021·Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine·Lorenzo CavallaroLorenzo De Michieli

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