Computerized Dynamic Platform Posturography

Monsell, Edwin M.; Furman, Joseph M.; Herdman, Susan J.; Konrad, Horst R.; Shepard, Neil T.

doi:10.1016/s0194-5998(97)70132-3

Cited by 126 publications

(66 citation statements)

References 50 publications

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“…Using two platforms of force allows the evaluation of the relative contribution of each leg in balance control [11]. In computerized dynamic posturography (CDP), illustrated in Figure 2, analog signals from these devices are sampled and stored for offline processing [74].…”

Section: Force Platforms and Computerized Dynamic Posturographymentioning

confidence: 99%

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Oliveira¹,

Medeiros²,

Frota³

et al. 2008

JRRD

180

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Abstract-Balance problems in hemiparetic patients after stroke can be caused by different impairments in the physiological systems involved in postural control, including sensory afferents, movement strategies, biomechanical constraints, cognitive processing, and perception of verticality. Balance impairments and disabilities must be appropriately addressed. This article reviews the most common balance abnormalities in hemiparetic patients with stroke and the main tools used to diagnose them.

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Section: Force Platforms and Computerized Dynamic Posturographymentioning

confidence: 99%

Untitled

Oliveira¹,

Medeiros²,

Frota³

et al. 2008

JRRD

180

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“…Repeat testing was performed by most subjects (n 5 206) on the same day after a short rest (minimum of 25 minutes). Subjects also completed posturography sensory organization testing (SOT) (higher values indicate less sway), 27 with concurrent BAM to examine validity.…”

mentioning

confidence: 99%

Vestibular function assessment using the NIH Toolbox

et al. 2013

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Objective: Development of an easy to administer, low-cost test of vestibular function.Methods: Members of the NIH Toolbox Sensory Domain Vestibular, Vision, and Motor subdomain teams collaborated to identify 2 tests: 1) Dynamic Visual Acuity (DVA), and 2) the Balance Accelerometry Measure (BAM). Extensive work was completed to identify and develop appropriate software and hardware. More than 300 subjects between the ages of 3 and 85 years, with and without vestibular dysfunction, were recruited and tested. Currently accepted gold standard measures of static visual acuity, vestibular function, dynamic visual acuity, and balance were performed to determine validity. Repeat testing was performed to examine reliability. Results:The DVA and BAM tests are affordable and appropriate for use for individuals 3 through 85 years of age. The DVA had fair to good reliability (0.41-0.94) and sensitivity and specificity (50%-73%), depending on age and optotype chosen. The BAM test was moderately correlated with center of pressure (r 5 0.42-0.48) and dynamic posturography (r 5 20.48), depending on age and test condition. Both tests differentiated those with and without vestibular impairment and the young from the old. Each test was reliable. Conclusion:The newly created DVA test provides a valid measure of visual acuity with the head still and moving quickly. The novel BAM is a valid measure of balance. Both tests are sensitive to age-related changes and are able to screen for impairment of the vestibular system. Neurology â 2013;80 (Suppl 3):S25-S31 GLOSSARY BAM 5 Balance Accelerometry Measure; COP 5 center of pressure; DS 5 double-limb feet together stance; DVA 5 dynamic visual acuity; ETDRS 5 Early Treatment Diabetic Retinopathy Study; ICC 5 intraclass correlation coefficient; logMAR 5 logarithm of the minimum angle of resolution; NPL 5 normalized path length; SOT 5 sensory organization testing; SVA 5 static visual acuity; TS 5 tandem stance; VH 5 vestibular hypofunction; VOR 5 vestibulo-ocular reflex; VSP 5 vestibulospinal outputs.The vestibular system is an integral component of our sensory experience and sensory-motor function. Healthy peripheral and central vestibular anatomy is essential for functionally relevant gaze stability during head motion and postural control. 1 However, gaze stabilization and balance are enabled by multiple sensory inputs (e.g., visual, somatosensory, and vestibular), integration and interpretation of these redundant sources of orientation, and motor output, each of which may be affected by age or damage. [1][2][3][4] Patients with vestibular pathology often report oscillopsia (due to gaze instability), imbalance, and/or vertigo. The redundancy of the sensory information confounds distinction of the causal mechanisms of oscillopsia and/or imbalance. However, the unique contributions of the vestibulo-ocular reflex (VOR) and vestibulospinal outputs (VSP) to gaze stability and balance, respectively, can direct the identification of tests to screen for pathology of the vestibular system. Th...

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“…The Bertec Balance Advantage CDP-IVR was used to measure postural stability by calculating center of gravity displacements through strain gauges in the forceplate [22][23][24][25]. Postural stability was measured under two conditions.…”

Section: Methodsmentioning

confidence: 99%

Effect of vestibular adaptation exercises on chronic motion sensitivity: a randomized controlled trial

Alyahya¹,

Johnson

Daher³

et al. 2016

Phys Ther Rehabil

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Background: Dizziness is one of the most common complaints reported to primary care physicians. It is often associated with vestibular dysfunction and typically impacts postural stability. Motion sickness, or motion sensitivity, is stimulated by abnormal spatial orientation and is a common symptom related to dizziness and postural instability. The main cause of the motion sensitivity is aberrant sensory input from the visual, vestibular and somatosensory systems. The aim of this study was to measure the effect of vestibular adaptation exercises on postural stability in young healthy adults with subjective awareness of chronic motion sensitivity. Methods: Fifty healthy male and female participants between 20 to 40 years of age with chronic motion sensitivity were randomly assigned to either an experimental or control group. Postural stability measurements were taken at baseline and after 6 weeks using computerized dynamic posturography with immersion virtual reality. The experimental group performed daily vestibular adaptation exercises for 6 weeks. The control group was asked to avoid adding any new activities until post assessment to minimize additional vestibular system stimulation. Results: There was no significant difference between the two groups at baseline in terms of mean age, height, weight, BMI or baseline postural stability scores (p>0.05). Significant differences in mean postural stability scores were observed post intervention in both groups but larger improvements were detected in the experimental group (p=0.002). Conclusions: Minimal dosage of vestibular adaptation exercises improved postural stability in younger adults with chronic motion sensitivity. Additionally, familiarity of the testing environment during post-test measurements may have contributed to improvements in the control group over time; however, changes were greater in the experimental group.

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Computerized Dynamic Platform Posturography

Cited by 126 publications

References 50 publications

Untitled

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Vestibular function assessment using the NIH Toolbox

Effect of vestibular adaptation exercises on chronic motion sensitivity: a randomized controlled trial

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