title: Amputee mobility predictor-bilateral: a performance-based measure of mobility for people with bilateral lower-limb loss.
abstract: 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.
authors.affiliation: Department of Physical Therapy, Miller School of Medicine, University of Miami, Coral Gables, FL.
authors.forename: Michele A
authors.initials: MA
authors.lastname: Raya
authors.forename: Robert S
authors.initials: RS
authors.lastname: Gailey
authors.forename: Ignacio A
authors.initials: IA
authors.lastname: Gaunaurd
authors.forename: Heather
authors.initials: H
authors.lastname: Ganyard
authors.forename: Justin
authors.initials: J
authors.lastname: Knapp-Wood
authors.forename: Karrie
authors.initials: K
authors.lastname: McDonough
authors.forename: Tiffany
authors.initials: T
authors.lastname: Palmisano
mesh_terms: D000328:Adult; D000673:Amputation, Traumatic / Q000503:physiopathology* / Q000534:rehabilitation; D001186:Artificial Limbs; D003430:Cross-Sectional Studies; D004185:Disability Evaluation; D005080:Exercise Test; D005269:Femur / Q000293:injuries; D006801:Humans; D007866:Leg; D008297:Male; D008889:Military Personnel; D051346:Mobility Limitation; D004856:Postural Balance / Q000502:physiology; D012189:Retrospective Studies; D013977:Tibia / Q000293:injuries; D015599:Trauma Severity Indices; D014481:United States; D016138:Walking / Q000502:physiology*; D055815:Young Adult
keywords: 6-minute walk test; Amputee Mobility Predictor; Amputee Mobility Predictor-Bilateral; New Injury Severity Score; bilateral amputation; mobility; outcome measure; servicemembers; traumatic amputation; veterans