Application of self-report and performance-based outcome measures to determine functional differences between four categories of prosthetic feet

Robert S. Gailey, Ignacio Gaunaurd, Vibhor Agrawal, Adam Finnieston, Christopher O'Toole, Ronald Tolchin

Research output: Contribution to journalArticle

26 Scopus citations


We examined the application of outcome measures to determine changes in function caused by standardized functional prosthetic gait training and the use of four different prosthetic feet in people with unilateral transtibial limb loss. Two self-report measures (Prosthetic Evaluation Questionnaire-Mobility Scale [PEQ-13] and Locomotor Capabilities Index [LCI]), and three performance-based measures (Amputee Mobility Predictor with a prosthesis [AMPPRO], 6-minute walk test [6MWT] and step activity monitor [SAM]) were used. Ten people with unilateral transtibial limb loss, five with peripheral vascular disease (PVD) and five without PVD, completed testing. Subjects were tested at baseline and after receiving training with their existing prosthesis and with the study socket and four prosthetic feet, i.e., SACH (solid ankle cushion heel), SAFE (stationary attachment flexible endoskeletal), Talux, and Proprio feet, over 8 to 10 weeks. Training was administered between testing sessions. No differences were detected by the PEQ-13, LCI, 6MWT, or SAM following training and after fitting with test feet. The AMPPRO demonstrated differences following training with the existing prosthesis in the PVD group and between selected feet from baseline testing (p </= 0.05). Significant differences were found between the PVD and the non-PVD groups (p </= 0.05) in the AMPPRO and 6MWT when using the Proprio foot. Self-report measures were unable to detect differences between prosthetic feet.

Original languageEnglish (US)
Pages (from-to)597-612
Number of pages16
JournalJournal of rehabilitation research and development
Issue number4
StatePublished - Jun 1 2012



  • Functional outcomes
  • Gait training
  • Lower-limb amputation
  • Medicare Functional Classification Level
  • Microprocessor ankle
  • Mobility
  • Performance-based outcome measures
  • Prosthetic feet comparison
  • Self-report outcome measures
  • Transtibial amputation

ASJC Scopus subject areas

  • Rehabilitation

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