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Related Experiment Video

Updated: Mar 27, 2026

Using Gold-standard Gait Analysis Methods to Assess Experience Effects on Lower-limb Mechanics During Moderate High-heeled Jogging and Running

Using Gold-standard Gait Analysis Methods to Assess Experience Effects on Lower-limb Mechanics During Moderate High-heeled Jogging and Running

Published on: September 14, 2017

Patellar instability and quadriceps avoidance affect walking knee moments.

Damian A Clark¹, Danielle L Simpson¹, Jonathan Eldridge²

¹Centre for Comparative and Clinical Anatomy, University of Bristol, Southwell Street, Bristol BS2 8EJ, United Kingdom.

|January 10, 2016

Summary

Patients with patellofemoral instability exhibit altered gait mechanics and reduced joint contact. Gait analysis and MRI can objectively measure patellofemoral cartilage contact and instability.

Keywords:

Joint congruence Knee Mechanics Pain Patellofemoral instability

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Last Updated: Mar 27, 2026

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Area of Science:

Biomechanics
Orthopedics
Medical Imaging

Background:

Patellofemoral (PF) instability affects gait mechanics.
Understanding the relationship between gait and PF joint congruence is crucial for diagnosis.

Purpose of the Study:

Classify patients with PF instability based on gait characteristics.
Correlate gait deficits with PF joint congruence.

Main Methods:

Gait analysis and magnetic resonance imaging (MRI) on 13 patients awaiting surgery.
Patients grouped (P1, P2) by knee joint moment during stance.
Comparison of total support moments (TSMs) and PF congruence against healthy controls.

Main Results:

Group P1 (knee extensor moment) showed altered TSM in late stance; Group P2 (no extensor moment) showed altered TSM in early and late stance.
Group P2 exhibited least patellofemoral contact area, especially during dynamic extension.
MRI measurements correlated with gait-based patient groupings.

Conclusions:

Patients with PF instability adopt a knee-flexed gait, avoiding full extension.
MRI-assessed cartilage contact is an objective measure of PF instability.
Gait analysis combined with MRI provides insights into PF instability mechanics.