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Related Experiment Video

Updated: Jul 30, 2025

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

Construct Validity of the Both Hands Assessment Using Wrist-Worn Accelerometers.

Andrea Burgess¹, Stina Oftedal¹, Roslyn N Boyd¹

¹Queensland Cerebral Palsy and Rehabilitation Research Centre, Faculty of Medicine, The University of Queensland, Brisbane, Australia.

Physical & Occupational Therapy in Pediatrics

|May 15, 2023

Summary

This study validates the Both Hands Assessment (BoHA) for children with cerebral palsy (CP) using accelerometers to measure upper limb activity, confirming its effectiveness in assessing performance.

Keywords:

Accelerometer activity count bilateral cerebral palsy both hands assessment (BoHA)hand function upper limb

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Last Updated: Jul 30, 2025

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

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Published on: August 8, 2019

Area of Science:

Biomedical Engineering
Rehabilitation Medicine
Pediatric Neurology

Background:

Cerebral palsy (CP) significantly impacts upper limb function in children.
Objective measurement of upper limb activity is crucial for assessing CP-related impairments.
The Both Hands Assessment (BoHA) is a clinical tool, but its construct validity needs further evaluation.

Purpose of the Study:

To evaluate the construct validity of the Both Hands Assessment (BoHA).
To correlate BoHA scores with objective upper limb activity data from accelerometry in children with bilateral CP.

Main Methods:

An observational study included 44 children with bilateral CP (27 boys, mean age 9.1 years).
Participants underwent BoHA assessment while wearing triaxial accelerometers on each wrist.
Linear regression analyses examined associations between BoHA metrics and accelerometer-derived activity measures.

Main Results:

Significant positive associations were found between BoHA Units and total mean activity (B=0.86).
BoHA Percentage difference between hands correlated with mean activity asymmetry index (B=0.95).
BoHA Each-Hand sub-score linked to non-dominant hand activity (B=1.71) but not dominant hand activity.

Conclusions:

The study supports the construct validity of the BoHA for assessing upper limb performance in children with CP.
Accelerometers effectively quantify gross upper limb movements but do not capture fine motor skills assessed by BoHA.