Volume 16, Issue 4 (July & August 2025)
BCN 2025, 16(4): 763-776 |
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Parsa M, Abdollahi I, Negahban H, Sanjari M A, Bakhshi E, Haddadiyan H F. Reliability of Center of Pressure Measures in Chronic Stroke Survivors: Influence of Motor and Cognitive Dual-tasking. BCN 2025; 16 (4) :763-776
URL: http://bcn.iums.ac.ir/article-1-3037-en.html
URL: http://bcn.iums.ac.ir/article-1-3037-en.html
Mitra Parsa1 
, Iraj Abdollahi *1 , Hossein Negahban2 , Mohammad Ali Sanjari3 , Enayatollah Bakhshi4 , Haniyeh Fakur Haddadiyan5
, Iraj Abdollahi *1 , Hossein Negahban2 , Mohammad Ali Sanjari3 , Enayatollah Bakhshi4 , Haniyeh Fakur Haddadiyan5
1- Neuromusculoskeletal Rehabilitation Research Center, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran.
2- Department of Physiotherapy, School of Paramedical and Rehabilitation Sciences, Mashhad University of Medical Sciences, Mashhad, Iran. & Orthopedic Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.
3- Department of Basic Rehabilitation Sciences, School of Rehabilitation Sciences, Iran University of Medical Sciences, Tehran, Iran.
4- Department of Biostatistics and Epidemiology, School of Social Sciences, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran.
5- Department of Physiotherapy, School of Paramedical and Rehabilitation Sciences, Mashhad University of Medical Sciences, Mashhad, Iran.
2- Department of Physiotherapy, School of Paramedical and Rehabilitation Sciences, Mashhad University of Medical Sciences, Mashhad, Iran. & Orthopedic Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.
3- Department of Basic Rehabilitation Sciences, School of Rehabilitation Sciences, Iran University of Medical Sciences, Tehran, Iran.
4- Department of Biostatistics and Epidemiology, School of Social Sciences, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran.
5- Department of Physiotherapy, School of Paramedical and Rehabilitation Sciences, Mashhad University of Medical Sciences, Mashhad, Iran.
Abstract:
Introduction: Reliable balance measures are crucial for effective stroke rehabilitation. This study examines the between-day and within-day reliabilities of the center of pressure (CoP) measures in chronic stroke survivors in different standing positions under the influence of motor and cognitive dual-tasking.
Methods: Sixteen people (49.31±15.5 years, 5 females) with chronic stroke were assessed in two sessions, 48 hours apart. Participants completed three balance control conditions: Single-task, motor dual-task, and cognitive dual-task. They performed three trials of open-eye quiet standing and semi-tandem standing. Three trials of closed-eye quiet standing were conducted in the single-task condition. A 2-way random model of the intraclass correlation coefficient (ICC), standard error of measurement (SEM), and minimal detectable change (MDC) were calculated for CoP mean velocity, anterior-posterior (AP) and medial-lateral (ML) mean velocity, the standard deviation (SD) of AP and ML velocity, and sway area.
Results: Within-day ICC values were higher than between-day values (ICC: 0.78-0.96). Mean velocity and Mean±SD of velocity in the AP direction showed the highest relative and absolute reliabilities in an open-eye quiet standing position (ICC: 0.82-0.92, SEM: 0.67-1.24). Dual-tasking could increase the reliability of the CoP measures, except for the sway area (ICC: 0.53-0.93 changed to 0.84-0.96). MDCs ranged from 1.03 to 7.77 mm/s for velocity-based variables.
Conclusion: Assessing the postural control system during dual-task conditions provides more reliable CoP measures, especially in a semi-tandem standing position. These findings can provide clinicians with valuable insights into detecting specific balance problems that post-stroke individuals encounter.
Methods: Sixteen people (49.31±15.5 years, 5 females) with chronic stroke were assessed in two sessions, 48 hours apart. Participants completed three balance control conditions: Single-task, motor dual-task, and cognitive dual-task. They performed three trials of open-eye quiet standing and semi-tandem standing. Three trials of closed-eye quiet standing were conducted in the single-task condition. A 2-way random model of the intraclass correlation coefficient (ICC), standard error of measurement (SEM), and minimal detectable change (MDC) were calculated for CoP mean velocity, anterior-posterior (AP) and medial-lateral (ML) mean velocity, the standard deviation (SD) of AP and ML velocity, and sway area.
Results: Within-day ICC values were higher than between-day values (ICC: 0.78-0.96). Mean velocity and Mean±SD of velocity in the AP direction showed the highest relative and absolute reliabilities in an open-eye quiet standing position (ICC: 0.82-0.92, SEM: 0.67-1.24). Dual-tasking could increase the reliability of the CoP measures, except for the sway area (ICC: 0.53-0.93 changed to 0.84-0.96). MDCs ranged from 1.03 to 7.77 mm/s for velocity-based variables.
Conclusion: Assessing the postural control system during dual-task conditions provides more reliable CoP measures, especially in a semi-tandem standing position. These findings can provide clinicians with valuable insights into detecting specific balance problems that post-stroke individuals encounter.
Type of Study: Original |
Subject:
Clinical Neuroscience
Received: 2024/09/20 | Accepted: 2024/11/30 | Published: 2025/07/1
Received: 2024/09/20 | Accepted: 2024/11/30 | Published: 2025/07/1
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