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

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

• Michele A. Raya, PhD, PT, SCS, ATC Robert S.
  Gailey, PhD, PT Ignacio A. Gaunaurd, PhD, MSPT
  Heather Ganyard, DPT Justin Knapp-Wood, DPT
  Karrie McDonough, DPT Tiffany Palmisano, DPT

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• Aim
• Examine utility of Amputee Mobility Predictor
  (AMP)-Bilateral (AMP-B) to measure performance of
  functional tasks related to advanced skill
  activities in people with bilateral lower-limb
  amputation (BLLA).
• Determine correlation between AMP-B scores and
  6-Minute Walk Test (6MWT) performance.
• Relevance
• Original AMP is designed to assess mobility and
  functional capabilities for people with
  unilateral lower-limb amputation.
• No comparable measure exists for those with BLLA.

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Method

• 26 male servicemembers participated
• 12 with bilateral transtibial amputation (BTTA).
• 7 with bilateral transfemoral amputation (BTFA).
• 7 with combination transtibial and transfemoral
  amputation (TTA/TFA).

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Results

• AMP-B scores, AMP scores, and 6MWT distance
• Significantly differed between
• Servicemembers with BTTA and TTA/TFA.
• Servicemembers with BTTA and BTFA.
• Did not significantly differ between
• Servicemembers with BTFA and TTA/TFA.
• Scoring of 5 AMP items was modified because they
  necessitated intact knee joint to generate
  necessary torque requirements to perform activity
  without upper-limb assistance.

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Conclusion

• Minor modifications in AMP scoring
• Do not alter total score.
• Allow clinicians to determine mobility and
  functional capabilities of servicemembers with
  BTFA and TFA/TTA.