Mechanical characterization and comparison of energy storage and return prostheses

Mechanical characterization and comparison of energy storage and return prostheses

Highlights • Proposes a new method for assessing energy storage and return prostheses. • Finite element model includes ‘stick’ and ‘slip’ experimental friction conditions. • Analysis of Vari-flex Modular, Flex-foot Cheetah, Cheetah Xtreme and 1E90 Sprinter. • Prosthesis overall stiffness correlates...

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Veröffentlicht in:Medical engineering & physics 2017-03, Vol.41, p.90-96
Hauptverfasser: Rigney, Stacey M, Simmons, Anne, Kark, Lauren
Format: Artikel
Sprache:eng
Schlagworte:
Artificial Limbs
Finite Element Analysis
Foot - physiology
Gait
Gait analysis
Lower-limb amputee
Mechanical Phenomena
Mechanical testing
Prosthesis Design
Prosthetic foot analysis
Radiology
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Beschreibung
Zusammenfassung:Highlights • Proposes a new method for assessing energy storage and return prostheses. • Finite element model includes ‘stick’ and ‘slip’ experimental friction conditions. • Analysis of Vari-flex Modular, Flex-foot Cheetah, Cheetah Xtreme and 1E90 Sprinter. • Prosthesis overall stiffness correlates negatively with energy stored and lost. • Energy efficiency may be over-estimated by link-segment models.
ISSN:1350-4533
1873-4030
DOI:10.1016/j.medengphy.2017.01.003