The Experts below are selected from a list of 327 Experts worldwide ranked by ideXlab platform
Eva-maj Malmström - One of the best experts on this subject based on the ideXlab platform.
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romberg ratio in quiet stance Posturography test to retest reliability
Gait & Posture, 2015Co-Authors: Fredrik Tjernström, Måns Björklund, Eva-maj MalmströmAbstract:We investigated test to retest reliability and intraindividual variability of Romberg ratios in quiet stance Posturography. Thirty-six healthy young adults (17 males, 19 females aged 15-38 years) were divided into 3 groups with different time-intervals between consecutive trials (20min, 3h and 24h respectively). Each group performed 5 Posturography recordings in a randomized order of eyes open (EO) or closed (EC)+once after 3 months. We measured the torque variance in Posturography and calculated Romberg ratios. Total postural sway as well as sway above and below 0.1Hz was analyzed.
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Romberg ratio in quiet stance Posturography—Test to retest reliability
Gait & posture, 2014Co-Authors: Fredrik Tjernström, Måns Björklund, Eva-maj MalmströmAbstract:We investigated test to retest reliability and intraindividual variability of Romberg ratios in quiet stance Posturography. Thirty-six healthy young adults (17 males, 19 females aged 15-38 years) were divided into 3 groups with different time-intervals between consecutive trials (20min, 3h and 24h respectively). Each group performed 5 Posturography recordings in a randomized order of eyes open (EO) or closed (EC)+once after 3 months. We measured the torque variance in Posturography and calculated Romberg ratios. Total postural sway as well as sway above and below 0.1Hz was analyzed.
Fredrik Tjernström - One of the best experts on this subject based on the ideXlab platform.
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romberg ratio in quiet stance Posturography test to retest reliability
Gait & Posture, 2015Co-Authors: Fredrik Tjernström, Måns Björklund, Eva-maj MalmströmAbstract:We investigated test to retest reliability and intraindividual variability of Romberg ratios in quiet stance Posturography. Thirty-six healthy young adults (17 males, 19 females aged 15-38 years) were divided into 3 groups with different time-intervals between consecutive trials (20min, 3h and 24h respectively). Each group performed 5 Posturography recordings in a randomized order of eyes open (EO) or closed (EC)+once after 3 months. We measured the torque variance in Posturography and calculated Romberg ratios. Total postural sway as well as sway above and below 0.1Hz was analyzed.
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Romberg ratio in quiet stance Posturography—Test to retest reliability
Gait & posture, 2014Co-Authors: Fredrik Tjernström, Måns Björklund, Eva-maj MalmströmAbstract:We investigated test to retest reliability and intraindividual variability of Romberg ratios in quiet stance Posturography. Thirty-six healthy young adults (17 males, 19 females aged 15-38 years) were divided into 3 groups with different time-intervals between consecutive trials (20min, 3h and 24h respectively). Each group performed 5 Posturography recordings in a randomized order of eyes open (EO) or closed (EC)+once after 3 months. We measured the torque variance in Posturography and calculated Romberg ratios. Total postural sway as well as sway above and below 0.1Hz was analyzed.
Emily A. Keshner - One of the best experts on this subject based on the ideXlab platform.
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Posturography using the Wii Balance Board™: A feasibility study with healthy adults and adults post-stroke.
Gait & posture, 2015Co-Authors: Roberto Llorens, Jorge Latorre, Enrique Noé, Emily A. KeshnerAbstract:Abstract Background Posturography systems that incorporate force platforms are considered to assess balance and postural control with greater sensitivity and objectivity than conventional clinical tests. The Wii Balance Board (WBB) system has been shown to have similar performance characteristics as other force platforms, but with lower cost and size. Objectives To determine the validity and reliability of a freely available WBB-based Posturography system that combined the WBB with several traditional balance assessments, and to assess the performance of a cohort of stroke individuals with respect to healthy individuals. Methods Healthy subjects and individuals with stroke were recruited. Both groups were assessed using the WBB-based Posturography system. Individuals with stroke were also assessed using a laboratory grade Posturography system and a battery of clinical tests to determine the concurrent validity of the system. A group of subjects were assessed twice with the WBB-based system to determine its reliability. Results A total of 144 healthy individuals and 53 individuals with stroke participated in the study. Concurrent validity with another Posturography system was moderate to high. Correlations with clinical scales were consistent with previous research. The reliability of the system was excellent in almost all measures. In addition, the system successfully characterized individuals with stroke with respect to the healthy population. Conclusions The WBB-based Posturography system exhibited excellent psychometric properties and sensitivity for identifying balance performance of individuals with stroke in comparison with healthy subjects, which supports feasibility of the system as a clinical tool.
Richard P. Di Fabio - One of the best experts on this subject based on the ideXlab platform.
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Sensitivity and Specificity of Platform Posturography for Identifying Patients With Vestibular Dysfunction
Physical therapy, 1995Co-Authors: Richard P. Di FabioAbstract:Sensitive and specific measures are needed to identify patients with vestibular impairments. The purpose of this clinical perspective is to describe the sensitivity and specificity of dynamic and static platform Posturography for detecting vestibular disorders. The sensory organization test (SOT) of dynamic Posturography (EquiTest), the motor “perturbation” test, and Romberg's tests on a static (fixed) force platform each had over 90% specificity. This finding means that nearly all of the subjects who should have tested negative, did test negative on each type of assessment. The sensitivity of the SOT was evaluated across five studies involving a total of 836 patients with peripheral vestibular deficits (PVDs). Abnormalities in the SOT were detected in only 40% (n=338) of the cases. Static platform Posturography sensitivity was evaluated across six studies involving a total of 571 patients with PVDs, and abnormalities were detected in 53% (n=302) of these cases. Tests of spontaneous and positional nystagmus and the horizontal component of the vestibuloocular reflex (VOR), by comparison, detected PVDs in 48% of 798 patients with suspected vestibular impairment. For patients with vestibular deficits associated with central nervous system disease, a total of 389 cases were identified in five studies and SOT abnormalities were found in 54% (n=209) of these cases. The motor perturbation test was abnormal in 35% (n=41) of 119 patients with central vestibular disease. In conclusion, the sensitivity of static Posturography appeared to be slightly better than that of dynamic Posturography for detecting PVDs, but the level of sensitivity for each Posturography test, as well as for tests of horizontal VOR function, was considered to be low. Combining either type of Posturography with other tests of vestibular function, however, increased the overall sensitivity of detecting vestibular deficits to 61% to 89%. It was concluded that dynamic and static platform Posturography as well as tests of VOR function lack adequate sensitivity to detect vestibular impairment when applied in isolation. Posturography appears to detect vestibular deficits in some patients who had normal VOR assessments and, therefore, provides supplemental rather than redundant information about vestibular dysfunction.
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Vestibular and Sensory Interaction Deficits Assessed by Dynamic Platform Posturography in Patients with Multiple Sclerosis
The Annals of otology rhinology and laryngology, 1995Co-Authors: Susan R. Nelson, Richard P. Di Fabio, John H. AndersonAbstract:Vestibular impairments have not been routinely identified in patients with multiple sclerosis (MS), because of the confounding effects of deficits in other neural systems. In this study, 35 patients with MS were evaluated by means of a systematic alteration of the sensory environment (dynamic Posturography) in order to identify those patients who became unstable when vestibular inputs were needed to maintain stance. Subjects were assigned to either a high-function (HF) or a low-function (LF) group on the basis of a functional status assessment score obtained prior to the Posturography test. For the HF group, 30% (7/23) had abnormal Posturography scores. Of those subjects, 3 had a vestibular dysfunction pattern or a somatosensory-vestibular impairment. In contrast, 58% of the LF group (7/ 12) had abnormal Posturography scores. Nearly all of these LF patients (677) had a vestibular dysfunction pattern or a combined visual-vestibular or somatosensory-vestibular impairment. Posturography might serve as one me...
Måns Björklund - One of the best experts on this subject based on the ideXlab platform.
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romberg ratio in quiet stance Posturography test to retest reliability
Gait & Posture, 2015Co-Authors: Fredrik Tjernström, Måns Björklund, Eva-maj MalmströmAbstract:We investigated test to retest reliability and intraindividual variability of Romberg ratios in quiet stance Posturography. Thirty-six healthy young adults (17 males, 19 females aged 15-38 years) were divided into 3 groups with different time-intervals between consecutive trials (20min, 3h and 24h respectively). Each group performed 5 Posturography recordings in a randomized order of eyes open (EO) or closed (EC)+once after 3 months. We measured the torque variance in Posturography and calculated Romberg ratios. Total postural sway as well as sway above and below 0.1Hz was analyzed.
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Romberg ratio in quiet stance Posturography—Test to retest reliability
Gait & posture, 2014Co-Authors: Fredrik Tjernström, Måns Björklund, Eva-maj MalmströmAbstract:We investigated test to retest reliability and intraindividual variability of Romberg ratios in quiet stance Posturography. Thirty-six healthy young adults (17 males, 19 females aged 15-38 years) were divided into 3 groups with different time-intervals between consecutive trials (20min, 3h and 24h respectively). Each group performed 5 Posturography recordings in a randomized order of eyes open (EO) or closed (EC)+once after 3 months. We measured the torque variance in Posturography and calculated Romberg ratios. Total postural sway as well as sway above and below 0.1Hz was analyzed.
