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Title: | Is a portable pressure plate an alternative to force plates for measuring postural stability and interlimb coordination of quiet standing balance control? | Authors: | SCHRODER, Jonas Hallemans, Ann Saeys, Wim Yperzeele, Laetitia Kwakkel, Gert Truijen, Steven |
Issue Date: | 2024 | Publisher: | SAGE PUBLICATIONS INC | Source: | Journal of Rehabilitation and Assistive Technologies Engineering, 11 | Abstract: | Introduction: Center-of-pressure (COP) synchronization and symmetry can inform adaptations in balance control following one-sided sensorimotor impairments (e.g., stroke). As established force plates are impossible to transport, we aimed to criterion validate a portable pressure plate for obtaining reliable COP synchronization and symmetry measures, next to conventional postural stability measures. Methods: Twenty healthy adults participated. In a single session, three 40-s eyes-open and eyes-closed quiet stance trials were performed per plate-type, randomly ordered. Individual-limb COPs were measured to calculate between-limb synchronization (BLS) and dynamic control asymmetry (DCA). Net COP (i.e., limbs combined) area, amplitude, and velocity were used to describe anteroposterior (AP) and mediolateral (ML) postural stability. Criterion validity was evaluated using Spearman correlations (r) and Bland-Altman plots. Test-retest reliability was tested using intraclass correlation coefficients (ICC). Results: Strong correlations (r > 0.75) and acceptable reliability (ICC > 0.80) were found regarding individual-limb COP velocity and DCA, net COP ML amplitude and AP and ML velocities. Bland-Altman plots yielded possible proportional bias; the pressure plate systematically underestimated COP scores by force plates and a larger error associated with a larger measurement. Conclusions: Despite correlations between instruments and sufficient reliability for measuring postural stability and DCA, this technical note strongly suggests, due to a systematic deviation, using the same plate-type to accurately assess performance change within subjects longitudinally over time. | Notes: | Schröder, J (corresponding author), Hasselt Univ, Fac Rehabil Sci, REVAL Rehabil Res Ctr, Campus Diepenbeek,Wetenschapspk 7, B-3590 Hasselt, Belgium. jonas.schroder@uhasselt.be |
Keywords: | Reliability and validity;postural balanc;posturography;biomechanics;force plate;center of pressure | Document URI: | http://hdl.handle.net/1942/42670 | ISSN: | 2055-6683 | e-ISSN: | 2055-6683 | DOI: | 10.1177/20556683241234858 | ISI #: | 001179529800001 | Rights: | The Author(s) 2024. Creative Commons Non Commercial CC BY-NC: This article is distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 License (https://creativecommons.org/licenses/by-nc/4.0/) which permits non-commercial use, reproduction and distribution of the work without further permission provided the original work is attributed as specified on the SAGE and Open Access pages (https://us.sagepub.com/en-us/nam/open-access-at-sage). | Category: | A1 | Type: | Journal Contribution |
Appears in Collections: | Research publications |
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