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Intersession Reliability of Center of Pressure Measurement During Bipedal Standing With Different Count-Back Orders Publisher Pubmed



Saberi S1 ; Mosharaf M1 ; Yeowell G2 ; Sadeghidemneh E1
Authors
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Authors Affiliations
  1. 1. Musculoskeletal Research Center, School of Rehabilitation Sciences, Isfahan University of Medical Sciences, Isfahan, Iran
  2. 2. Department of Health Professions, Manchester Metropolitan University, Manchester, United Kingdom

Source: Journal of Bodywork and Movement Therapies Published:2024


Abstract

Introduction: Dual-task assessments can identify changes in postural control during balance assessments. Static standing with backward counting is frequently used to evaluate postural control while dual-tasking. The most reliable countdown method for standing postural stability has not yet been defined. Research objective: to investigate postural stability's intra- and inter-day reliability while backward counting in different steps. Method: Thirty-nine healthy adults (20 females, 26.94 ± 7.55 years) completed 70 s trials of stability tests with no dual-task, counting backward under five conditions (in ones, tows, threes, fours, and fives) while standing on a force-plate in three sessions: two sessions were on the same day, and the third session was one-week apart. The repeatability of measurements was tested using repeated-measure analysis of variance, interclass correlation, and standard error of measurements. Results: The interclass correlation scores ranged from 0.67 to 0.92, and the standard error of measurements ranged from 2.9% to 13.4%. No significant systematic changes (p < 0.05) occurred between the testing sessions for any backward counting. Discussion: The backward counting showed higher reliability when performed in condition 5 (counting backward in five's). The inter-day reliability scores were greater than intera-day reliability. Conclusions: Dual-tasking with most backward counting (in ones to fives) is reliable, and a quantitative assessment of the center of pressure could be used to monitor the changes in postural stability between sessions. © 2024
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