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Related Experiment Video

Updated: Feb 7, 2026

Sit-to-stand-and-walk from 120% Knee Height: A Novel Approach to Assess Dynamic Postural Control Independent of Lead-limb

Sit-to-stand-and-walk from 120% Knee Height: A Novel Approach to Assess Dynamic Postural Control Independent of Lead-limb

Published on: August 30, 2016

Visual-Vestibular Interaction for Postural Control During Sit-to-Stand: Effects of Aging.

Kai Yan Lui¹, Patricia Hewston², Nandini Deshpande¹

¹Queen's University.

|July 17, 2018

Summary

Older adults exhibit greater instability during sit-to-stand (STS) but use similar sensory strategies as younger adults. Vision is more critical than vestibular input for mediolateral trunk control during STS.

Keywords:

functional performance motion analysis motor control

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Last Updated: Feb 7, 2026

Sit-to-stand-and-walk from 120% Knee Height: A Novel Approach to Assess Dynamic Postural Control Independent of Lead-limb

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Published on: August 30, 2016

Experimental Methods to Study Human Postural Control

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Computerized Dynamic Posturography for Postural Control Assessment in Patients with Intermittent Claudication

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Published on: December 11, 2013

Area of Science:

Biomechanics
Neuroscience
Gerontology

Background:

Postural control during sit-to-stand (STS) relies on integrated sensory information, including visual and vestibular inputs.
The vestibular system's role in STS, particularly its interaction with vision, is crucial for maintaining balance, especially with aging.

Purpose of the Study:

To investigate the effects of aging on visual-vestibular interaction for postural control during STS.
To compare how young and older adults utilize visual and vestibular information for balance during STS.

Main Methods:

Galvanic vestibular stimulation (GVS) was used to manipulate vestibular input.
Vision was altered through eyes open, blurred vision, and eyes closed conditions.
Measurements included mediolateral trunk roll and center of mass displacements during STS.

Main Results:

Older adults demonstrated significantly greater mediolateral trunk roll and center of mass displacements compared to young adults.
Despite increased instability, older adults employed similar sensory reweighting strategies as younger adults during STS.
Visual input was found to be more dominant than vestibular input for mediolateral trunk control during STS.

Conclusions:

Aging impacts postural control during STS, leading to increased mediolateral instability.
Older adults adapt their sensory strategies to maintain balance, showing resilience in sensorimotor control.
Visual information plays a more critical role than vestibular information in controlling mediolateral trunk sway during the STS task.