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Computerized Dynamic Posturography for Postural Control Assessment in Patients with Intermittent Claudication
Published on: December 11, 2013
Static and dynamic postural control in low-vision and normal-vision adults.
Mônica S V Tomomitsu1, Angelica Castilho Alonso, Eurica Morimoto
1Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo, Institute of Orthopedics and Traumatology, Movement Study Laboratory, São Paulo/SP, Brazil.
Clinics (Sao Paulo, Brazil)
|June 20, 2013
Summary
Reduced visual information significantly impairs postural control, particularly in dynamic balance tasks and on unstable surfaces. Low-vision individuals exhibit greater body sway and altered gait compared to those with normal vision.
Area of Science:
- Ophthalmology
- Kinesiology
- Biomechanics
Background:
- Postural control relies on integrating visual, vestibular, and somatosensory information.
- Reduced visual input, as experienced by individuals with low vision, may compromise balance.
- Understanding these effects is crucial for developing targeted interventions.
Purpose of the Study:
- To investigate the impact of diminished visual information on postural stability.
- To compare the balance performance of low-vision and normal-vision adults.
Main Methods:
- Twenty-five low-vision and 25 normal-vision adults participated.
- Evaluations included static and dynamic balance tests: Modified Clinical Test of Sensory Interaction on Balance, Unilateral Stance, Tandem Walk, and Step Up/Over.
- Tests were conducted on firm and foam surfaces, with eyes open and closed.
Main Results:
- Low-vision adults showed significantly greater body sway on foam surfaces and during Unilateral Stance and Tandem Walk.
- The low-vision group exhibited wider step width and slower gait speed.
- Participants with low vision demonstrated increased caution during the Step Up/Over task.
Conclusions:
- Visual feedback is critical for maintaining balance, especially in dynamic conditions and on compliant surfaces.
- Low-vision individuals demonstrate poorer postural stability compared to normal-vision individuals, particularly in dynamic balance and on foam surfaces.
