Assessment of the effects of carbon fiber and bionic foot during overground and treadmill walking in transtibial amputees

Anna Sofia Delussu, Stefano Brunelli, Francesco Paradisi, Marco Iosa, Roberto Pellegrini, Daniele Zenardi, Marco Traballesi

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

Objective: To determine the energy cost of walking (ECW) of a bionic foot (Proprio-Foot®) during ambulation on floor and on treadmill (at different slopes) compared to walking with a dynamic carbon fiber foot (DCF). We evaluated transtibial amputees (TTAs) perceived mobility with the prosthesis and their walking ability on stairs and ramps. Method: TTAs were enrolled. The ECW tests were conducted on a regular floor surface and on treadmill with -5%, 0% and 12% slopes. In all conditions, TTAs were asked to walk at their own self-selected speed. Metabolic and cardiac data were collected using a portable gas analyzer. Tests were performed at six data collection points: first with a standard suction system (SSS) and the DCF; second, with the DCF after 7 weeks of using a hypobaric suspension system (HSS) with the DCF; third, after 1h of Proprio-Foot® use together with the HSS; three more testing sessions were carried out at 30-day intervals, i.e., after 30, 60 and 90 days of Proprio-Foot® use together with the HSS. TTAs perceived mobility using the prosthesis and walking ability on stairs and ramps were assessed. Results: Ten TTAs completed the measurements. ECW with the Proprio-Foot® obtained in the final floor-walking test was significantly lower than ECW with the DCF (p=0.002). No significant improvements were observed for perceived mobility or walking ability. Conclusions: Results suggest that use of the Proprio-Foot® can lower the ECW for TTAs in spite of its added weight compared to DCF.

Original languageEnglish
Pages (from-to)876-882
Number of pages7
JournalGait and Posture
Volume38
Issue number4
DOIs
Publication statusPublished - Sep 2013

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Bionics
Amputees
Walking
Foot
Costs and Cost Analysis
Suspensions
Architectural Accessibility
Prostheses and Implants
carbon fiber
Suction

Keywords

  • Efficiency
  • Gait
  • Lower limb amputation
  • Oxygen consumption
  • Prosthesis

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine
  • Rehabilitation
  • Biophysics

Cite this

Assessment of the effects of carbon fiber and bionic foot during overground and treadmill walking in transtibial amputees. / Delussu, Anna Sofia; Brunelli, Stefano; Paradisi, Francesco; Iosa, Marco; Pellegrini, Roberto; Zenardi, Daniele; Traballesi, Marco.

In: Gait and Posture, Vol. 38, No. 4, 09.2013, p. 876-882.

Research output: Contribution to journalArticle

Delussu, Anna Sofia ; Brunelli, Stefano ; Paradisi, Francesco ; Iosa, Marco ; Pellegrini, Roberto ; Zenardi, Daniele ; Traballesi, Marco. / Assessment of the effects of carbon fiber and bionic foot during overground and treadmill walking in transtibial amputees. In: Gait and Posture. 2013 ; Vol. 38, No. 4. pp. 876-882.
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