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A Method for Quantifying Upper Limb Performance in Daily Life Using Accelerometers

A Method for Quantifying Upper Limb Performance in Daily Life Using Accelerometers

Published on: April 21, 2017

Brief activity performance measure for upper limb amputees: BAM-ULA.

Linda Resnik¹, Matthew Borgia¹, Frantzy Acluche¹

¹Providence VA Medical Center, Providence, RI, USA.

Prosthetics and Orthotics International

|January 17, 2017

Summary

The Brief Activity Measure for Upper Limb Amputees (BAM-ULA) is a reliable and valid tool for assessing activity performance in adults with upper limb amputation. It offers a quicker and simpler scoring method compared to existing measures.

Keywords:

Amputation activity performance disability evaluation measurement prosthetics upper limb

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Last Updated: Mar 8, 2026

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Published on: November 6, 2015

Area of Science:

Rehabilitation Medicine
Prosthetics and Orthotics
Occupational Therapy

Background:

Activity performance measures are crucial for adults with upper limb amputations.
Existing measures may be time-consuming or complex to score.
A need exists for a brief, reliable, and valid assessment tool.

Purpose of the Study:

To evaluate the measurement properties of the Brief Activity Measure for Upper Limb Amputees (BAM-ULA).
To compare BAM-ULA scores across different prosthesis types and amputation levels.

Main Methods:

The BAM-ULA was administered to 35 adults with upper limb amputations twice within a week.
Internal consistency, test-retest reliability, construct validity, and concurrent validity were assessed.
Exploratory regression analyses compared scores based on amputation level and prosthesis type (myoelectric vs. body-powered, single- vs. multi-articulating devices).

Main Results:

The BAM-ULA demonstrated good internal consistency (alpha=0.83) and excellent test-retest reliability (ICC=0.91).
Scores varied significantly by amputation level (transradial higher than transhumeral/shoulder) and prosthesis type (myoelectric higher than body-powered).
The BAM-ULA showed strong correlations with the Activities Measure for Upper Limb Amputees and moderate-to-strong correlations with Jebsen-Taylor Hand Function Tests.

Conclusions:

The BAM-ULA is a reliable and valid measure for assessing activity performance in individuals with upper limb amputations.
Its brief nature and simple scoring facilitate clinical adoption.
The measure differentiates performance based on amputation level and prosthesis type, aiding in personalized rehabilitation planning.