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Related Experiment Video

Updated: Jun 9, 2025

Experimental Methods to Study Human Postural Control

Experimental Methods to Study Human Postural Control

Published on: September 11, 2019

Bayesian estimation of trunk-leg coordination during walking using phase oscillator models.

Haruma Furukawa¹, Takahiro Arai², Tetsuro Funato³

¹Graduate School of Informatics, Kyoto University, Yoshida-Honmachi, Sakyo-ku, Kyoto 606-8501, Japan.

Neuroscience Research

|October 24, 2024

Summary

This summary is machine-generated.

Human walking involves coordinated leg and trunk movements. This study reveals that leg-trunk coordination, like interleg coordination, is not strictly controlled during gait.

Keywords:

Coupled phase oscillators Human walking Leg-trunk coordination Synchronization

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Last Updated: Jun 9, 2025

Experimental Methods to Study Human Postural Control

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Published on: September 11, 2019

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Published on: January 15, 2016

Area of Science:

Biomechanics
Human locomotion
Neuroscience

Background:

Human walking relies on rhythmic coordination between body parts, crucial for gait rehabilitation.
Previous research indicated interleg coordination during walking isn't strictly controlled.
The role of trunk movement in gait stability and control remains largely unknown.

Purpose of the Study:

To investigate the control mechanisms of leg-trunk coordination in the sagittal plane during human walking.
To determine if leg-trunk coordination is strictly controlled, similar to interleg coordination.

Main Methods:

Utilized a coupled phase oscillators model to analyze gait dynamics.
Employed Bayesian estimation techniques to assess coordination control.
Focused on the coordination between legs and trunk in the sagittal plane.

Main Results:

Demonstrated that leg-trunk coordination during walking is not strictly controlled.
Found that the degree of control for leg-trunk coordination is comparable to that of interleg coordination.
Highlighted the importance of the trunk's role in stabilizing walking.

Conclusions:

Gait control involves flexible coordination between legs and trunk, not rigid synchronization.
Understanding these flexible control mechanisms is vital for developing effective gait rehabilitation strategies for disorders like Parkinson's.
The coupled phase oscillator model provides insights into the non-strict control of human locomotion.