Amputee Mobility Predictor-Bilateral: A performance-based measure of mobility for people with bilateral lower-limb loss

Michele A. Raya, Robert S. Gailey, Ignacio A. Gaunaurd, Heather Ganyard, Justin Knapp-Wood, Karrie McDonough, Tiffany Palmisano

Research output: Contribution to journalArticlepeer-review

8 Scopus citations


The Amputee Mobility Predictor (AMP) is an outcome measure designed to assess mobility and functional capabilities for people with unilateral lower-limb amputation. No comparable measure exists for those with bilateral lower-limb amputation (BLLA). The purpose of this study was to examine the utility of the AMP-Bilateral (AMP-B) to measure the ability to perform functional tasks related to participation in advanced skill activities in those with BLLA and to determine whether AMP-B scores correlated with 6-minute walk test (6MWT) performance. Twenty-six male servicemembers (SMs) completed the study: 12 with bilateral transtibial amputation(BTTA), 7 with bilateral transfemoral amputation (BTFA), and 7 with combination transtibial and transfemoral amputation (TTA/TFA). Significant differences existed between the AMP-B scores (p < 0.001), AMP scores (p < 0.001), and 6MWT distance (p < 0.05) for SMs with BTTA and TTA/TFA and SMs with BTTA and BTFA but not between those with BTFA and TTA/TFA. Scoring of five AMP items was modified because they necessitate at least one intact knee joint to generate the necessary torque requirements to perform the activity without upper-limb assistance. Minor modifications in scoring of the AMP do not alter total score and allow clinicians to determine the mobility and functional capabilities of SMs with BTFA and TFA/TTA.

Original languageEnglish (US)
Pages (from-to)961-968
Number of pages8
JournalJournal of rehabilitation research and development
Issue number7
StatePublished - 2013


  • 6-minute walk test
  • Amputee Mobility Predictor
  • Amputee Mobility Predictor-Bilateral
  • Bilateral amputation
  • Mobility
  • New Injury Severity Score
  • Outcome measure
  • Servicemembers
  • Traumatic amputation
  • Veterans

ASJC Scopus subject areas

  • Rehabilitation


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