1 / 5

Ankle Mechanics in Sidestep Cutting Highlight the Need for 2-Degrees of Freedom Powered Ankle-Foot Prostheses

This study explores the ankle mechanics during sidestep cutting and its implications for designing prostheses with 2-degrees of freedom in order to improve agility in gait for patients with limb loss.

donaldstacy
Télécharger la présentation

Ankle Mechanics in Sidestep Cutting Highlight the Need for 2-Degrees of Freedom Powered Ankle-Foot Prostheses

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Ankle mechanics during sidestep cutting implicates need for 2-degrees of freedom powered ankle-foot prostheses Evandro M. Ficanha; Mohammad Rastgaar, PhD; Kenton R. Kaufman, PhD

  2. Aim • Consider requirements of turning in prosthesis design to increase agility. • Relevance • Ankle joint of currently available powered prostheses can control 1 degree of freedom (DOF), focusing on improved mobility in sagittal plane.

  3. Method • Studied ankle kinematics and kinetics during sidestep cutting and straight walking.

  4. Results • Sidestep cutting vs straight walking: • No significant differences between ankle sagittal plane mechanics. • Significant differences in ankle frontal plane mechanics. • Inversion-eversion (IE) angles smaller during straight walking. • IE kinematic changes were most significant during sidestep cutting. • Moments of step that initiated sidestep cutting were always in eversion.

  5. Conclusion • Ankle-foot prosthesis with active DOFs in sagittal and frontal planes will increase agility of gait for patients with limb loss.

More Related