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Related Experiment Video

Updated: Jul 17, 2026

Clinical-oriented Three-dimensional Gait Analysis Method for Evaluating Gait Disorder

Clinical-oriented Three-dimensional Gait Analysis Method for Evaluating Gait Disorder

Published on: March 4, 2018

Gait abnormalities in psychogenic movement disorders.

Jong Sam Baik¹, Anthony E Lang

¹Movement Disorders Center, Toronto Western Hospital, Toronto, Canada.

Movement Disorders : Official Journal of the Movement Disorder Society

|January 12, 2007

Summary

Psychogenic movement disorders (PMDs) often involve abnormal gait. This study differentiates gait issues in PMD patients, finding excessive slowness common in those with gait disturbances.

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Area of Science:

Neurology
Movement Disorders
Gait Analysis

Background:

Medically unexplained neurological symptoms frequently present with abnormal gait.
Previous research has not comprehensively analyzed gait characteristics across diverse psychogenic movement disorders (PMDs) or compared PMDs with and without gait disturbances.

Purpose of the Study:

To investigate and compare gait features in patients with PMDs, differentiating between those with normal and abnormal gaits.
To analyze differences between PMD patients with co-occurring gait disorders and those with pure psychogenic gait disorder (PGD).

Main Methods:

A series of 279 PMD patients were analyzed, categorized into groups with normal (Group I) and abnormal (Group II) gaits.
Group II was further divided into those with PMD and additional abnormal gait (II-1) and those with pure PGD (II-2).

Main Results:

Excessive slowness of movement was significantly more prevalent in PMD patients with abnormal gaits (Group II) compared to those with normal gaits (Group I).
Gait slowness was the predominant feature in patients with PMD and PGD (II-1).
Buckling of the knee was the most frequent pattern in pure PGD (II-2), followed by astasia-abasia.

Conclusions:

Abnormal gait is a common feature in PMD, with excessive slowness being a key indicator in affected individuals.
Specific gait patterns, like knee buckling and astasia-abasia, characterize pure psychogenic gait disorders.