The association between video-nystagmography and sensory organization test of computerized dynamic posturography in patients with vestibular symptoms

2019 ◽  
Vol 276 (12) ◽  
pp. 3513-3517
Author(s):  
Shany G. Gofrit ◽  
Ophir Ilan ◽  
Yulia Mayler ◽  
Ron Eliashar ◽  
Tali Bdolah-Abram ◽  
...  
Keyword(s):  
Sensory Organization Test ◽  
Dynamic Posturography ◽  
Sensory Organization ◽  
Computerized Dynamic Posturography ◽  
Vestibular Symptoms

Dizziness: Relating the Severity of Vertigo to the Degree of Handicap by Measuring Vestibular Impairment

2003 ◽  
Vol 128 (3) ◽  
pp. 372-381 ◽  
Author(s):  
Nicolás Pérez ◽  
Eduardo Martin ◽  
Rafael Garcia-Tapia
Keyword(s):  
Caloric Test ◽  
Pathologic Finding ◽  
Sensory Organization Test ◽  
Dizziness Handicap Inventory ◽  
Test Portion ◽  
Dynamic Posturography ◽  
Sensory Organization ◽  
Computerized Dynamic Posturography ◽  
Prospective Assessment ◽  
Vestibular Pathology

OBJECTIVE: We sought to correlate the severity of vertigo and handicap in patients with vestibular pathology according to measures of impairment. STUDY DESIGN AND SETTING: We conducted a prospective assessment of patients with dizziness by means of caloric, rotatory test, and computerized dynamic posturography to estimate impairment. Handicap and severity of vertigo were determined with specific questionnaires (Dizziness Handicap Inventory and UCLA-DQ). RESULTS: A fair relationship were found between severity of dizziness and vestibular handicap. When impairment was taken into consideration, values were still fair and only moderate for a group of patients with an abnormal caloric test as the only pathologic finding. The composite score from the sensory organization test portion of the computerized dynamic posturography is fairly correlated to severity of vertigo and handicap in the whole population of patients, but no correlation was found when they were assigned to groups of vestibular impairment. CONCLUSION: To assess vestibular impairment, the results from several tests must be taken into account. However, vestibular handicap is not solely explained with measurements of impairment and/or severity.

scholarly journals Reliability and Validity of the Computerized Dynamic Posturography Sensory Organization Test in People with Multiple Sclerosis

2017 ◽  
Vol 19 (3) ◽  
pp. 151-157 ◽  
Author(s):  
Jeffrey R. Hebert ◽  
Mark M. Manago
Keyword(s):  
Multiple Sclerosis ◽  
Scale Score ◽  
Repeated Measures ◽  
Group Versus ◽  
Sensory Organization Test ◽  
Dynamic Posturography ◽  
Sensory Organization ◽  
Computerized Dynamic Posturography ◽  
Disability Group ◽  
Composite Scores

Background: People with multiple sclerosis (MS) frequently have impaired postural control (balance). Psychometric properties of clinical tests of balance for individuals with MS, including the computerized dynamic posturography sensory organization test (CDP-SOT), are poorly understood. This study aimed to determine the reliability and discriminant validity of the CDP-SOT in people with MS. Methods: The CDP-SOT was performed on 30 participants with MS. A 2-week–interval, repeated-measures (sessions 1 and 2) design was implemented to investigate test-retest reliability of the CDP-SOT and the ability of the CDP-SOT to discriminate between participants with lower versus higher disability. Self-reported disability level was based on Patient-Determined Disease Steps (PDDS) scale scores: lower (PDDS scale score, 0–3; n = 17) and higher (PDDS scale score, 4–6; n = 13). Results: All six conditions of the CDP-SOT had good-to-excellent reliability (interclass correlation coefficients, 0.70–0.90) and excellent reliability for composite scores (0.90). Composite scores were significantly greater in the lower-disability group versus the higher-disability group at session 1 (70.89 vs. 48.60, P = .001) and session 2 (74.82 vs. 48.85, P = .002). Conclusions: The CDP-SOT is a reliable measure of balance and accurately differentiates disability status in people with MS. Collectively, the results support clinical application of the CDP-SOT as a reliable and valid measure of disease-related progression of impaired balance related to sensory integration and its utility in determining changes in balance in response to treatment.

scholarly journals Postural Instability and Cognitive Dysfunction in Early Parkinson's Disease

2012 ◽  
Vol 39 (4) ◽  
pp. 473-482 ◽  
Author(s):  
Jong Moon Lee ◽  
Seong-Beom Koh ◽  
Sung Won Chae ◽  
Woo-Keun Seo ◽  
Do Young Kwon ◽  
...  
Keyword(s):  
Parkinson’S Disease ◽  
Parkinson's Disease ◽  
Early Stage ◽  
Postural Instability ◽  
Sensory Organization Test ◽  
Yahr Stage ◽  
Dynamic Posturography ◽  
Motor Latency ◽  
Sensory Organization ◽  
Computerized Dynamic Posturography

Background:Postural instability is one of the most disabling features of Parkinson's disease, usually occurring in late and advanced stages. The aim of this study was to investigate the postural performance of early-stage de novo Parkinson's disease patients with no clinical postural instability using computerized dynamic posturography. We sought to understand the relationship between postural sway and disease severity and the relationship between postural instability quantitatively measured by computerized dynamic posturography and cognitive impairment in early-stage Parkinson's disease patients.Method:Thirty-one subjects with Parkinson's disease and 20 healthy controls were assessed by the computerized dynamic posturography protocol using the sensory organization test and the motor control test. A neuropsychological assessment was also administered.Results:The mean equilibrium score for sensory organization test and the vestibular input ratio were significantly correlated with Hoehn-Yahr stage. No associations between motor latency for any motor control test condition and Hoehn-Yahr stage were found. The equilibrium score for sensory organization test correlated with the mini-mental status examination scores. There was a significant correlation between motor latency for large backward translation and mini-mental status examination scores. There were significant correlations between visual perception/construction/ memory of the neuropsychological battery test and the equilibrium score for sensory organization test and between verbal word learning test, controlled word association test and motor latency for large backward translation.Conclusion:These findings showed the postural instability present in early-stage (Hoehn-Yahr stage 2-2.5) Parkinson's disease. We also found a close relationship between postural instability and cognitive function in Parkinson's disease patients.

Effects of lifetime ethanol consumption on postural control: A computerized dynamic posturography study

2002 ◽  
Vol 12 (1) ◽  
pp. 53-64
Author(s):  
Saad Ahmad ◽  
John W. Rohrbaugh ◽  
Andrey P. Anokhin ◽  
Erik J. Sirevaag ◽  
Joel A. Goebel
Keyword(s):  
Alcohol Consumption ◽  
Postural Control ◽  
Spectral Power ◽  
Support Surface ◽  
Dependent Manner ◽  
Dynamic Posturography ◽  
Eyes Closed ◽  
Sensory Organization ◽  
Computerized Dynamic Posturography ◽  
Eyes Open

The relationship between lifetime alcohol consumption and postural control was investigated in 35 subjects with no clinically-detectable neurologic abnormalities, using computerized dynamic posturography (CDP) procedures. The estimated total number of lifetime alcoholic drinks was positively correlated with anteroposterior sway spectral power within the 2–4 Hz and 4–6 Hz frequency bands, in three Sensory Organization Test (SOT) conditions: eyes closed with stable support surface (SOT 2), eyes open with sway-referenced support (SOT 4), and eyes closed with sway-referenced support (SOT 5). All correlations remained significant after controlling for subject age, and were increased after excluding nine drug-abusing subjects. In contrast to the strong findings for frequency-based measures, no correlation was observed using conventional amplitude-based sway measures. These results suggest that 1) alcohol consumption compromises postural control in an exposure-dependent manner, and 2) sway frequency analysis reveals pathological processes not manifested in conventional CDP measures of sway amplitude.

Posturographic Evidence of Nonorganic Sway Patterns in Normal Subjects, Patients, and Suspected Malingerers

1997 ◽  
Vol 117 (4) ◽  
pp. 293-302 ◽  
Author(s):  
Joel A. Goebel ◽  
Robert T. Sataloff ◽  
Jason M. Hanson ◽  
Lewis M. Nashner ◽  
Debra S. Hirshout ◽  
...  
Keyword(s):  
Normal Subjects ◽  
Relative Strength ◽  
Response Patterns ◽  
Dynamic Posturography ◽  
Balance Disorders ◽  
Balance System ◽  
Sensory Organization ◽  
Computerized Dynamic Posturography ◽  
Standard Calculation ◽  
Routine Assessment

During the last 10 years, computerized dynamic posturography has yielded various patterns of sway on the sensory organization test and the motor control test that have been associated with a variety of organic balance disorders. Some aspects of performance during computerized dynamic posturography, however, are under conscious control. Voluntary movements not indicative of physiologic response to balance system stimulation can also affect computerized dynamic posturography results. Quantification of nonorganic or “aphysiologic” response patterns in normal subjects, patients, and suspected malingerers is crucial to justify use of computerized dynamic posturography for identification of physiologically inconsistent results. For this purpose the computerized dynamic posturography records of 122 normal subjects, 347 patients with known or suspected balance disorders, and 72 subjects instructed to feign a balance disturbance were critically evaluated by use of seven measurement criteria, which were postulated as indicating aphysiologic sway. Each criterion was scored with a standard calculation of the raw data in a random, blinded fashion. The results of this multicenter study show that three of the seven criteria are significantly different in the suspected “malingerer” group when compared with either the normal or patient group. The relative strength of each criterion in discerning organic from nonorganic sway provides the examiner with a measure of reliability during platform posture testing. This study demonstrates that computerized dynamic posturography can accurately identify and document nonorganic sway patterns during routine assessment of posture control.

Ankle Joint Proprioception and Postural Control in Basketball Players with Bilateral Ankle Sprains

2005 ◽  
Vol 33 (8) ◽  
pp. 1174-1182 ◽  
Author(s):  
Amy S. N. Fu ◽  
Christina W. Y. Hui-Chan
Keyword(s):  
Standard Deviation ◽  
Postural Control ◽  
Ankle Joint ◽  
Postural Sway ◽  
Plantar Flexion ◽  
Ankle Sprains ◽  
Sensory Organization Test ◽  
Basketball Players ◽  
Dynamic Posturography ◽  
Sensory Organization

Background Deficiencies in ankle proprioception and standing balance in basketball players with multiple ankle sprains have been reported in separate studies. However, the question of how ankle proprioceptive inputs and postural control in stance are related is still unclear. Hypothesis Ankle repositioning errors and the amount of postural sway in stance are increased in basketball players with multiple ankle sprains. Study Design Controlled laboratory study. Methods Twenty healthy male basketball players and 19 male basketball players who had suffered bilateral ankle sprains within the past 2 years were examined. Both groups were similar in age. Passive ankle joint repositioning errors at 5° of plantar flexion were used to test for ankle joint proprioception. The Sensory Organization Test was applied with dynamic posturography to assess postural sway angle under 6 sensory conditions. Results A significant increase in ankle repositioning errors was demonstrated in basketball players with bilateral ankle sprains (P < .05). The mean errors in the right and left ankles were increased from 1.0° (standard deviation, 0.4°) and 0.8° (standard deviation, 0.2°), respectively, in the healthy players to 1.4° (standard deviation, 0.7°) and 1.1° (standard deviation, 0.5°) in the injured group. A significant increase in the amount of postural sway in the injured subjects was also found in conditions 1, 2, and 5 of the Sensory Organization Test (P < .05). Furthermore, there were positive associations between averaged errors in repositioning both ankles and postural sway angles in conditions 1, 2, and 3 of the Sensory Organization Test (r = 0.39-0.54, P < .05). Conclusions Ankle repositioning errors and postural sway in stance increased in basketball players with multiple ankle sprains. A positive relationship was found between these 2 variables. Clinical Relevance Such findings highlight the need for the rehabilitation of patients with multiple ankle sprains to include proprioceptive and balance training.

scholarly journals Use of Virtual Reality to Assess Dynamic Posturography and Sensory Organization: Instrument Validation Study (Preprint)

2020 ◽  
Author(s):  
Matthew William Wittstein ◽  
Anthony Crider ◽  
Samantha Mastrocola ◽  
Mariana Guerena Gonzalez
Keyword(s):  
Virtual Reality ◽  
Center Of Pressure ◽  
Force Plate ◽  
Fluctuation Analysis ◽  
Scaling Exponent ◽  
Sensory Organization Test ◽  
Dynamic Posturography ◽  
Sensory Organization ◽  
Intraclass Correlations ◽  
Absolute Agreement

BACKGROUND The Equitest system (Neurocom) is a computerized dynamic posturography device used by health care providers and clinical researchers to safely test an individual’s postural control. While the Equitest system has evaluative and rehabilitative value, it may be limited owing to its cost, lack of portability, and reliance on only sagittal plane movements. Virtual reality (VR) provides an opportunity to reduce these limitations by providing more mobile and cost-effective tools while also observing a wider array of postural characteristics. OBJECTIVE This study aimed to test the plausibility of using VR as a feasible alternative to the Equitest system for conducting a sensory organization test. METHODS A convenience sample of 20 college-aged healthy individuals participated in the study. Participants completed the sensory organization test using the Equitest system as well as using a VR environment while standing atop a force plate (Bertec Inc). The Equitest system measures the equilibrium index. During VR trials, the estimated equilibrium index, 95% ellipse area, path length, and anterior-posterior detrended fluctuation analysis scaling exponent alpha were calculated from center of pressure data. Pearson correlation coefficients were used to assess the relationship between the equilibrium index and center of pressure–derived balance measures. Intraclass correlations for absolute agreement and consistency were calculated to compare the equilibrium index and estimated equilibrium index. RESULTS Intraclass correlations demonstrated moderate consistency and absolute agreement (0.5 &lt; intraclass correlation coefficient &lt; 0.75) between the equilibrium index and estimated equilibrium index from the Equitest and VR sensory organization test (SOT), respectively, in four of six tested conditions. Additionally, weak to moderate correlations between force plate measurements and the equilibrium index were noted in several of the conditions. CONCLUSIONS This research demonstrated the plausibility of using VR as an alternative method to conduct the SOT. Ongoing development and testing of virtual environments are necessary before employing the technology as a replacement to current clinical tests.

scholarly journals Use of Virtual Reality to Assess Dynamic Posturography and Sensory Organization: Instrument Validation Study

10.2196/19580 ◽  
2020 ◽  
Vol 8 (4) ◽  
pp. e19580
Author(s):  
Matthew William Wittstein ◽  
Anthony Crider ◽  
Samantha Mastrocola ◽  
Mariana Guerena Gonzalez
Keyword(s):  
Virtual Reality ◽  
Center Of Pressure ◽  
Force Plate ◽  
Fluctuation Analysis ◽  
Scaling Exponent ◽  
Sensory Organization Test ◽  
Dynamic Posturography ◽  
Sensory Organization ◽  
Intraclass Correlations ◽  
Absolute Agreement

Background The Equitest system (Neurocom) is a computerized dynamic posturography device used by health care providers and clinical researchers to safely test an individual’s postural control. While the Equitest system has evaluative and rehabilitative value, it may be limited owing to its cost, lack of portability, and reliance on only sagittal plane movements. Virtual reality (VR) provides an opportunity to reduce these limitations by providing more mobile and cost-effective tools while also observing a wider array of postural characteristics. Objective This study aimed to test the plausibility of using VR as a feasible alternative to the Equitest system for conducting a sensory organization test. Methods A convenience sample of 20 college-aged healthy individuals participated in the study. Participants completed the sensory organization test using the Equitest system as well as using a VR environment while standing atop a force plate (Bertec Inc). The Equitest system measures the equilibrium index. During VR trials, the estimated equilibrium index, 95% ellipse area, path length, and anterior-posterior detrended fluctuation analysis scaling exponent alpha were calculated from center of pressure data. Pearson correlation coefficients were used to assess the relationship between the equilibrium index and center of pressure–derived balance measures. Intraclass correlations for absolute agreement and consistency were calculated to compare the equilibrium index and estimated equilibrium index. Results Intraclass correlations demonstrated moderate consistency and absolute agreement (0.5 < intraclass correlation coefficient < 0.75) between the equilibrium index and estimated equilibrium index from the Equitest and VR sensory organization test (SOT), respectively, in four of six tested conditions. Additionally, weak to moderate correlations between force plate measurements and the equilibrium index were noted in several of the conditions. Conclusions This research demonstrated the plausibility of using VR as an alternative method to conduct the SOT. Ongoing development and testing of virtual environments are necessary before employing the technology as a replacement to current clinical tests.

Maturational Effects of the Vestibular System: A Study of Rotary Chair, Computerized Dynamic Posturography, and Vestibular Evoked Myogenic Potentials with Children

2007 ◽  
Vol 18 (06) ◽  
pp. 461-481 ◽  
Author(s):  
Maureen Valente
Keyword(s):  
Normative Data ◽  
Age Groups ◽  
Preschool Age ◽  
Vestibular Evoked Myogenic Potentials ◽  
Vestibular Evoked Myogenic Potential ◽  
Dynamic Posturography ◽  
Hearing Sensitivity ◽  
Sensory Organization ◽  
Computerized Dynamic Posturography ◽  
Step Velocity

Maturational effects were investigated in two age groups (N = 30 per group) of children with normal hearing sensitivity, using rotary chair (RC), computerized dynamic posturography (CDP), and vestibular evoked myogenic potential (VEMP) measures. Children recruited within the younger group were three through six years of age, and children within the older group were nine through eleven years of age. Data obtained for each pediatric group were compared with clinic and/or published adult normative data for each measure. Significant age effects were seen on many CDP subtests (sensory organization test and motor control test); VEMP latencies; and RC gain, phase, and step velocity measures. The results of this study demonstrate significant maturational effects from preschool age through adulthood and suggest that adult normative data may not be appropriate when interpreting pediatric test results. Since adult techniques should oftentimes not be utilized, a proposed test battery is described that may be efficiently utilized with pediatric patients. Se investigaron los efectos de la maduración en niños con sensibilidad auditiva normal en dos grupos de edad (n = 30 por grupo), utilizando la silla rotatoria (RC), la posturografía dinámica computarizada (CDP) y mediciones de potenciales evocados miogénicos vestibulares (VEMP). Los niños reclutados dentro del grupo más joven tenían de tres a seis años de edad, y los niños en el grupo más viejo tenían de nueve a once años de edad. Los datos obtenidos de cada grupo pediátrico se compararon con datos normativos de adultos, clínicos y/o publicados, para cada una de las mediciones. Se encontraron efectos significativos de la edad en muchas sub-pruebas de la CDP (pruebas de organización sensorial y pruebas de control motor), en las latencias del VEMP, las medidas de ganancia, fase y velocidad de paso de la RC. Los resultados de este estudio demuestran efectos significativos de maduración en niños pre-escolares hasta la edad adulta, y sugiere que los datos normativos de adultos pueden no ser apropiados cuando se interpretan resultados pediátricos. Dado que las técnicas para adultos a menudo no deben ser utilizadas, se describe una batería propuesta de pruebas que puede ser eficientemente usada en pacientes pediátricos.

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