Validity and Reliability of Limits-of-Stability Testing: A Comparison of 2 Postural Stability Evaluation Devices

Pickerill, Marie L; Harter, Rod A.

doi:10.4085/1062-6050-46.6.600

Cited by 148 publications

(154 citation statements)

References 21 publications

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“…Even though these results are comparable to those described for laboratory grade systems [25], changes in the balance condition of individuals with stroke detected using the WBBbased posturography should take these properties into account [11].…”

Section: Discussionsupporting

confidence: 67%

“…The effect of foot position could have significantly altered the maximum displacement that participants were able to do [23], while having a limited effect during the mCTSIB [24]. It is important to highlight that the hardware architecture, the acquisition of the COP data, and the post-acquisition processing can vary greatly with different posturography systems, thus restricting their comparability [25]. Our results support the clinical use of the WBB-based system as an alternative to laboratory-grade systems, while benefiting from the low-cost and portability of the WBB [5] and the free-of-charge posturography [12].…”

Section: Discussionmentioning

confidence: 99%

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Posturography using the Wii Balance Board™

et al. 2016

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ElsevierLlorens Rodríguez, R.; Grau Latorre, J.; Noe, E.; Keshner, EA. (2015). Posturography using the Wii Balance Board. A feasibility study with healthy adults and adults post-stroke. Gait and Posture. 43:228-232. doi:10.1016/j.gaitpost.2015.10 Declaration of Conflicting InterestsThe authors declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article. FundingThis study was funded by project NeuroVR (TIN2013-44741-R) of the Ministerio de Economía y Competitividad (Madrid, Spain). 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 Abstract Background

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Section: Discussionsupporting

confidence: 67%

Section: Discussionmentioning

confidence: 99%

Posturography using the Wii Balance Board™

et al. 2016

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“…The BBS DLOS was reported to be the best predictor of pathological dynamic balance [25]. Pickerill & Harter attempted to establish the concurrent validity of two DLOS balance systems, BBS and the NeuroCom Smart Balance Master (Clackamas, OR) and found a low positive, yet non-significant correlation (r=0.33 p=0.12) between the two systems for overall directional balance control measures [1]. The non-significant low correlation was attributed to differences in testing protocols [1].…”

Section: Biodex Balance System Dynamic Limits Of Stabilitymentioning

confidence: 99%

“…Dynamic walking balance is an elusive construct, yet to be quantitatively identified by a gold standard measurement [1]. Lark & Pasupuleti [2] referenced any situation that maximally narrowed an individual's base of support (BOS) maximally challenged her/his dynamic balance, therefore,walking tests that serve to maximally narrow an individual's BOS, theoretically, should maximally challenge her/his dynamic walking balance.…”

Section: Introductionmentioning

confidence: 99%

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Concurrent validation of the tandem walk test as a measure of dynamic walking balance in a healthy population

Robertson¹,

Gregory²

2017

Phys Ther Rehabil

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Background: The purpose of this study was to determine the possible concurrent validity of the tandem walk test as a measure of dynamic walking balance. Methods: Forty-nine healthy participants, age range 20-75 years (mean age 40.1 ± 17.1 years), performed the ten step tandem walk test and two clinical tests of dynamic balance using the Biodex Balance System (Biodex Medical Systems, Shirley, NY) dynamic limits of stability protocol and measures of gait variability assessed through gait center of pressure, spatial, and temporal parameters derived from an instrumented treadmill (h/p/cosmos sports & medical gmbh, Nussdorf-Traunstein, Germany; Zebris FDM-T, Isny im Allgau, Germany). Results: A moderate-high correlation was demonstrated between the ten step tandem walk test eyes open and measures of gait variability, step width (r=0.64 p<0.05) and step time variability ( r=0.67 p<0.05), age (r=0.69 p<0.05), and Biodex Balance System dynamic limits of stability (r=0.81 p<0.05). A moderate relationship was found between the ten step tandem walk test eyes open and measures of gait center of pressure variability (r=0.52 p<0.05). Correlation coefficient values between the ten step tandem walk test eyes open and Biodex Balance System dynamic limits of stability, gait temporal, center of pressure, and spatial parameters demonstrated increased strength when adjusted for age. Conclusion: The ten step tandem walk test demonstrated a moderate to high relationship with clinical tests of dynamic balance: Biodex Balance System dynamic limits of stability and gait center of pressure, spatial, and time parameters in a healthy population demonstrating concurrent validity as an objective measure of dynamic walking balance in a healthy population between the ages of 20 and 75 years.

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Examining the reliability, correlation, and validity of commonly used assessment tools to measure balance

Dawson

Dzurino

Karleskint

et al. 2018

Health Science Reports

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ObjectivesThe Biodex SD Stability System has been shown to be a reliable assessment tool for postural stability. However, its ability to provide an accurate representation of balance has not been compared with functional performance measures such as the four‐square step test (FSST) and timed‐up‐and‐go test (TUG). The purpose of this study was to investigate reliability, internal consistency, and construct validity of FSST, TUG, and Biodex SD (limits of stability [LOS] and modified Clinical Test of Sensory Organization and Balance [m‐CTSIB]).MethodsAn observational reliability and validity study was conducted. A convenience sample of 105 healthy adults, 77 females and 28 males, mean age 24.5 years old (± 4.66 SD) performed balance assessments including the FSST, TUG, Biodex SD LOS, and m‐CTSIB. For LOS, the overall percentage and test duration were recorded. For m‐CTSIB, the overall Sway Index was recorded. Condition 1 of the m‐CTSIB represented simple postural stability.ResultsThe Biodex SD LOS overall percentage, TUG, and FSST showed strong to excellent test‐retest reliability (ICC [3, 1] = .83 [mean 1: 58.14, mean 2: 60.54], .88 [mean 1: 6.98 seconds, mean 2: 6.91 seconds], .92 [mean 1: 6.29 seconds, mean 2: 6.14 seconds], respectively), while the Biodex SD m‐CTSIB overall percentage demonstrated strong test‐retest reliability (ICC [3, 1] = .75 [mean 1: 1.18, mean 2: 1.18]). The LOS test duration showed moderate test‐retest reliability (ICC [3, 1] = .58 [mean 1: 38.55 seconds, mean 2: 37.10 seconds]), while the m‐CTSIB condition 1 showed poor test‐retest reliability (ICC [3, 1] = .24 [mean 1: 0.63, mean 2: 0.66]). Weak construct validity was found between TUG, FSST, and Biodex SD measures of LOS and m‐CTSIB (r values = −0.15‐0.22).ConclusionIt is suggested that clinicians use more than one measure to assess different aspects of a patient's balance deficits to better guide treatment and intervention.

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Validity and Reliability of Limits-of-Stability Testing: A Comparison of 2 Postural Stability Evaluation Devices

Cited by 148 publications

References 21 publications

Posturography using the Wii Balance Board™

Posturography using the Wii Balance Board™

Concurrent validation of the tandem walk test as a measure of dynamic walking balance in a healthy population

Examining the reliability, correlation, and validity of commonly used assessment tools to measure balance

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