Related Experiment Video
Updated: Feb 7, 2026
08:24
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
10.7K
Visual-Vestibular Interaction for Postural Control During Sit-to-Stand: Effects of Aging
Kai Yan Lui1, Patricia Hewston2, Nandini Deshpande1
1Queen's University.
Motor Control
|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.
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.
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