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Updated: Mar 25, 2026

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

Quantifying Poststroke Apathy With Actimeters.

Andrew M Goldfine¹, Behdad Dehbandi¹, Juliana M Kennedy¹

¹From the Dept. of Neurology, Stony Brook Medicine, Stony Brook, NY (AMG); Burke Medical Research Institute, White Plains, NY (BD, JMK, BS, CS, DP); and Weill Cornell Medical College of Cornell University, New York, NY (BD, DP).

The Journal of Neuropsychiatry and Clinical Neurosciences

|February 23, 2016

Summary

This summary is machine-generated.

Wrist-worn actimeters may help measure poststroke apathy severity. While not a standalone diagnostic tool, this technology offers objective data for patients with an intact upper extremity.

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Area of Science:

Neurology
Rehabilitation Medicine
Biomedical Engineering

Background:

Poststroke apathy is a common condition affecting patient recovery.
Objective measures for quantifying apathy severity are needed.
Wrist-worn actimeters offer a potential solution for objective assessment.

Purpose of the Study:

To test the hypothesis that wrist-worn actimeters can quantify poststroke apathy severity.
To explore the relationship between actimeter data and apathy scores.

Main Methods:

Studied 57 patients in acute rehabilitation for stroke.
Utilized wrist-worn actimeters to measure movement.
Assessed apathy using the Apathy Inventory score.
Accounted for motor deficits and patient age.

Main Results:

Each Apathy Inventory score increment correlated with 5.6 fewer minutes of movement per hour.
The statistical model explained only 34% of the variance in movement time (R²=0.34).
Actimeter data showed potential as an objective measure for apathy.

Conclusions:

Wrist-worn actimeters may objectively quantify poststroke apathy in patients with an intact upper extremity.
Actimetry alone is insufficient for diagnosing apathy.
Further research is needed to identify unexplained factors influencing movement time.