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Kinematic Validation of Postural Sway Measured by Biodex Biosway (Force Plate) and SWAY Balance (Accelerometer) Technology
Joint Authors
Dewan, Birendra M.
Roger James, C.
Kumar, Neeraj A.
Sawyer, Steven F.
Source
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-12-21
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
Background.
The Biodex Biosway® Balance System and SWAY Balance® Mobile smartphone application (SBMA) are portable instruments that assess balance function with force plate and accelerometer technology, respectively.
The validity of these indirect clinical measures of postural sway merits investigation.
Purpose.
The purpose of this study was to investigate the concurrent validity of standing postural sway measurements by using the portable Biosway and SBMA systems with kinematic measurements of the whole body Center of Mass (COM) derived from a gold-standard reference, a motion capture system.
Study Design.
Cross-sectional; repeated measures.
Methods.
Forty healthy young adults (21 female, 19 male) participated in this study.
Participants performed 10 standing balance tasks that included combinations of standing on one or two legs, with eyes open or closed, on a firm surface or foam surface and voluntary rhythmic sway.
Postural sway was measured simultaneously from SBMA, Biosway, and the motion capture system.
The linear relationships between the measurements were analyzed.
Results.
Significant correlations were found between Biosway and COM velocity for both progressively challenging single and double leg stances (τb = 0.3 to 0.5, p<0.01 to <0.0001).
SBMA scores and COM velocity were significantly correlated only for single leg stances (τb = −0.5 to −0.6, p<0.0001).
SBMA scores had near-maximal values with zero to near-zero variance in double leg stances, indicating a ceiling effect.
Conclusion.
The force plate-based Biodex Biosway is valid for assessing standing postural sway for a wide range of test conditions and challenges to standing balance, whereas an accelerometer-based SWAY Balance smartphone application is valid for assessing postural sway in progressively challenging single leg stance but is not sensitive enough to detect lower-magnitude postural sway changes in progressively challenging double leg stances.
American Psychological Association (APA)
Dewan, Birendra M.& Roger James, C.& Kumar, Neeraj A.& Sawyer, Steven F.. 2019. Kinematic Validation of Postural Sway Measured by Biodex Biosway (Force Plate) and SWAY Balance (Accelerometer) Technology. BioMed Research International،Vol. 2019, no. 2019, pp.1-10.
https://search.emarefa.net/detail/BIM-1127770
Modern Language Association (MLA)
Dewan, Birendra M.…[et al.]. Kinematic Validation of Postural Sway Measured by Biodex Biosway (Force Plate) and SWAY Balance (Accelerometer) Technology. BioMed Research International No. 2019 (2019), pp.1-10.
https://search.emarefa.net/detail/BIM-1127770
American Medical Association (AMA)
Dewan, Birendra M.& Roger James, C.& Kumar, Neeraj A.& Sawyer, Steven F.. Kinematic Validation of Postural Sway Measured by Biodex Biosway (Force Plate) and SWAY Balance (Accelerometer) Technology. BioMed Research International. 2019. Vol. 2019, no. 2019, pp.1-10.
https://search.emarefa.net/detail/BIM-1127770
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1127770