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Related Experiment Video

Updated: Feb 25, 2026

Compensatory Limb Use and Behavioral Assessment of Motor Skill Learning Following Sensorimotor Cortex Injury in a Mouse Model of Ischemic Stroke

Compensatory Limb Use and Behavioral Assessment of Motor Skill Learning Following Sensorimotor Cortex Injury in a Mouse Model of Ischemic Stroke

Published on: July 10, 2014

Proximal arm non-use when reaching after a stroke.

K K A Bakhti¹, D Mottet², N Schweighofer³

¹Euromov, University of Montpellier, Montpellier, France; Physical Medicine and Rehabilitation, Montpellier University Hospital, Montpellier, France.

Neuroscience Letters

|August 6, 2017

Summary

This summary is machine-generated.

Many stroke survivors "can but do not" use their affected arm, a condition called proximal arm non-use. Quantifying this non-use offers new rehabilitation targets for improved upper limb function after stroke.

Keywords:

Kinematic analysis Non-use Reaching Stroke Upper-limb

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Compensatory Limb Use and Behavioral Assessment of Motor Skill Learning Following Sensorimotor Cortex Injury in a Mouse Model of Ischemic Stroke

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The Impact of Motor Task Conditions on Goal-Directed Arm Reaching Kinematics and Trunk Compensation in Chronic Stroke Survivors

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Area of Science:

Neurorehabilitation
Motor Recovery
Stroke Research

Background:

Post-stroke, many individuals exhibit non-use of their paretic upper limb.
Some individuals can use their affected limb but choose not to, necessitating targeted rehabilitation.

Purpose of the Study:

To quantify proximal arm non-use during reaching tasks in post-stroke individuals.
To assess the reliability and clinical correlates of proximal arm non-use.

Main Methods:

Measured proximal arm non-use (ratio of spontaneous vs. maximal arm use) in 45 stroke survivors and 45 controls.
Assessed test-retest reliability and correlation with Fugl-Meyer and Box & Block scores.

Main Results:

Proximal arm non-use demonstrated excellent test-retest reliability.
Non-use was independent of time since stroke and correlated with impairment and functional loss.
61% of patients with mild-to-moderate impairment showed significant proximal arm non-use.

Conclusions:

Quantifying proximal arm non-use provides valuable insights beyond standard clinical measures.
This metric may represent a targetable aspect of motor reserve for personalized stroke rehabilitation programs.