Development and reliability testing of the Comprehensive High-Level Activity Mobility Predictor (CHAMP) in male servicemembers with traumatic lower-limb loss

Robert Gailey, Ignacio Gaunaurd, Michele Raya, Kathryn Roach, Alison A. Linberg, Stuart M. Campbell, Daniel M. Jayne, Charles Scoville

Research output: Contribution to journalArticle

22 Scopus citations


The opportunity for wounded servicemembers (SMs) to return to high-level activity and return to duty has improved with advances in surgery, rehabilitation, and prosthetic technology. As a result, there is now a need for a high-level mobility outcome measure to assess progress toward high-level mobility during and after rehabilitation. The purpose of this study was to develop and determine the reliability of a new outcome measure called the Comprehensive High-Level Activity Mobility Predictor (CHAMP). The CHAMP consists of the Single Limb Stance, Edgren Side Step Test, T-Test, and Illinois Agility Test. CHAMP reliability was determined for SMs with lower-limb loss (LLL) (interrater: n = 118; test-retest: n = 111) and without LLL (n = 97). A linear system was developed to combine the CHAMP items and produce a composite score that ranges from 0 to 40, with higher scores indicating better performance. Interrater and test-retest intraclass correlation coefficient values for theCHAMP were 1.0 and 0.97, respectively. A CHAMP score equal to or greater than 33 sp;points is within the range for SMs without LLL. The CHAMP was found to be a safe and reliable measure of high-level mobility in SMs with traumatic LLL.

Original languageEnglish
Pages (from-to)905-918
Number of pages14
JournalJournal of Rehabilitation Research and Development
Issue number7
StatePublished - Nov 14 2013



  • Agility
  • High-level activity
  • Lower-limb loss
  • Military personnel
  • Mobility
  • Outcome measures
  • Reliability
  • Traumatic amputation
  • Veterans

ASJC Scopus subject areas

  • Rehabilitation

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