Content » Vol 42, Issue 8

Original report

Feasibility of a new concept for measuring actual functional performance in daily life of transfemoral amputees

Patrick Theeven, Bea Hemmen, Caroline Stevens, Esther Ilmer, Peter Brink, Henk Seelen
DOI: 10.2340/16501977-0591


Objective: Determining the feasibility of implementing a new concept to objectively evaluate actual functional abilities of transfemoral amputees into a new measuring tool called “Assessment of Daily Activity Performance in Transfemoral amputees” (ADAPT).
Design: Study 1: cross-sectional design. Study 2: repeated measures design.
Subjects: Study 1 comprised two groups of 10 participants, age range 19–72 years. One group used microprocessor-controlled knee joints and the other group used mechanically controlled knee joints. Study 2 comprised 20 participants, age range 31–68 years.
Methods: Two versions of ADAPT were assessed in the separate studies. In study 1 performance times on version 1 of ADAPT were compared between groups. In study 2 participants completed version 2 of ADAPT twice with a 1 h rest between trials. The Locomotor Capabilities Index was administered. Reliability was determined by calculating correlation coefficients and by Bland-Altman analyses.
Results: In study 1, ADAPT version 1 proved to be sensitive in detecting differences in performance between groups. In study 2, 75% of all correlation coefficients exceeded 0. 90 in version 2 of ADAPT. Bland-Altman analyses showed high test-retest agreement.
Conclusion: It is feasible to reliably assess actual functional abilities of transfemoral amputees using standardized simulations of daily activities. This ADAPT concept is able to differentiate between different functional performance levels.

Lay Abstract


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