Journal article
Biomechanics of the ankle–foot system during stair ambulation: Implications for design of advanced ankle–foot prostheses
Journal of biomechanics, Vol.45(3), pp.588-594
02/02/2012
DOI: 10.1016/j.jbiomech.2011.11.007
PMID: 22177669
Abstract
Unilateral lower limb prosthesis users display temporal, kinematic, and kinetic asymmetries between limbs while ascending and descending stairs. These asymmetries are due, in part, to the inability of current prosthetic devices to effectively mimic normal ankle function. The purpose of this study was to provide a comprehensive set of biomechanical data for able-bodied and unilateral transtibial amputee (TTA) ankle–foot systems for level-ground (LG), stair ascent (SA), and stair descent (SD), and to characterize deviations from normal performance associated with prosthesis use. Ankle joint kinematics, kinetics, torque–angle curves, and effective shapes were calculated for twelve able-bodied individuals and twelve individuals with TTA. The data from this study demonstrated the prosthetic limb can more effectively mimic the range of motion and power output of a normal ankle–foot during LG compared to SA and SD. There were larger differences between the prosthetic and able-bodied limbs during SA and SD, most evident in the torque–angle curves and effective shapes. These data can be used by persons designing ankle–foot prostheses and provide comparative data for assessment of future ankle–foot prosthesis designs.
Details
- Title: Subtitle
- Biomechanics of the ankle–foot system during stair ambulation: Implications for design of advanced ankle–foot prostheses
- Creators
- Emily H Sinitski - Military Performance Laboratory, Center for the Intrepid, Department of Orthopedics and Rehabilitation, Brooke Army Medical Center, Fort Sam Houston, TX, USAAndrew H Hansen - Minneapolis VA Health Care System, Minneapolis, MN, USAJason M Wilken - Military Performance Laboratory, Center for the Intrepid, Department of Orthopedics and Rehabilitation, Brooke Army Medical Center, Fort Sam Houston, TX, USA
- Resource Type
- Journal article
- Publication Details
- Journal of biomechanics, Vol.45(3), pp.588-594
- Publisher
- Elsevier Ltd
- DOI
- 10.1016/j.jbiomech.2011.11.007
- PMID
- 22177669
- ISSN
- 0021-9290
- eISSN
- 1873-2380
- Grant note
- name: Military Amputee Research Program (to JMW) and the Telemedicine and Advanced Technology Research Center (to JMW); name: Department of Veterans Affairs, Veterans Health Administration, Rehabilitation Research and Development Service (AHH)
- Language
- English
- Date published
- 02/02/2012
- Academic Unit
- Physical Therapy and Rehabilitation Science
- Record Identifier
- 9984047753202771
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