The Berlin Bimanual Test for Tetraplegia (BeBiTT): development, psychometric properties, and sensitivity to change in assistive hand exoskeleton application

Abstract Background Assistive hand exoskeletons are promising tools to restore hand function after cervical spinal cord injury (SCI) but assessing their specific impact on bimanual hand and arm function is limited due to lack of reliable and valid clinical tests. Here, we introduce the Berlin Bimanu...

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Main Authors: Cornelius Angerhöfer, Mareike Vermehren, Annalisa Colucci, Marius Nann, Peter Koßmehl, Andreas Niedeggen, Won-Seok Kim, Won Kee Chang, Nam-Jong Paik, Volker Hömberg, Surjo R. Soekadar
Format: Article
Language:English
Published: BMC 2023-01-01
Series:Journal of NeuroEngineering and Rehabilitation
Subjects:
Online Access:https://doi.org/10.1186/s12984-023-01137-4
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author Cornelius Angerhöfer
Mareike Vermehren
Annalisa Colucci
Marius Nann
Peter Koßmehl
Andreas Niedeggen
Won-Seok Kim
Won Kee Chang
Nam-Jong Paik
Volker Hömberg
Surjo R. Soekadar
author_facet Cornelius Angerhöfer
Mareike Vermehren
Annalisa Colucci
Marius Nann
Peter Koßmehl
Andreas Niedeggen
Won-Seok Kim
Won Kee Chang
Nam-Jong Paik
Volker Hömberg
Surjo R. Soekadar
author_sort Cornelius Angerhöfer
collection DOAJ
description Abstract Background Assistive hand exoskeletons are promising tools to restore hand function after cervical spinal cord injury (SCI) but assessing their specific impact on bimanual hand and arm function is limited due to lack of reliable and valid clinical tests. Here, we introduce the Berlin Bimanual Test for Tetraplegia (BeBiTT) and demonstrate its psychometric properties and sensitivity to assistive hand exoskeleton-related improvements in bimanual task performance. Methods Fourteen study participants with subacute cervical SCI performed the BeBiTT unassisted (baseline). Thereafter, participants repeated the BeBiTT while wearing a brain/neural hand exoskeleton (B/NHE) (intervention). Online control of the B/NHE was established via a hybrid sensorimotor rhythm-based brain-computer interface (BCI) translating electroencephalographic (EEG) and electrooculographic (EOG) signals into open/close commands. For reliability assessment, BeBiTT scores were obtained by four independent observers. Besides internal consistency analysis, construct validity was assessed by correlating baseline BeBiTT scores with the Spinal Cord Independence Measure III (SCIM III) and Quadriplegia Index of Function (QIF). Sensitivity to differences in bimanual task performance was assessed with a bootstrapped paired t-test. Results The BeBiTT showed excellent interrater reliability (intraclass correlation coefficients > 0.9) and internal consistency (α = 0.91). Validity of the BeBiTT was evidenced by strong correlations between BeBiTT scores and SCIM III as well as QIF. Wearing a B/NHE (intervention) improved the BeBiTT score significantly (p < 0.05) with high effect size (d = 1.063), documenting high sensitivity to intervention-related differences in bimanual task performance. Conclusion The BeBiTT is a reliable and valid test for evaluating bimanual task performance in persons with tetraplegia, suitable to assess the impact of assistive hand exoskeletons on bimanual function.
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spelling doaj.art-7ab3dfcc423043f4b6f6a406eefae3452023-01-29T12:06:02ZengBMCJournal of NeuroEngineering and Rehabilitation1743-00032023-01-0120111110.1186/s12984-023-01137-4The Berlin Bimanual Test for Tetraplegia (BeBiTT): development, psychometric properties, and sensitivity to change in assistive hand exoskeleton applicationCornelius Angerhöfer0Mareike Vermehren1Annalisa Colucci2Marius Nann3Peter Koßmehl4Andreas Niedeggen5Won-Seok Kim6Won Kee Chang7Nam-Jong Paik8Volker Hömberg9Surjo R. Soekadar10Clinical Neurotechnology Laboratory, Department of Psychiatry and Neurosciences, Neurowissenschaftliches Forschungszentrum (NWFZ), Charité-Universitätsmedizin BerlinClinical Neurotechnology Laboratory, Department of Psychiatry and Neurosciences, Neurowissenschaftliches Forschungszentrum (NWFZ), Charité-Universitätsmedizin BerlinClinical Neurotechnology Laboratory, Department of Psychiatry and Neurosciences, Neurowissenschaftliches Forschungszentrum (NWFZ), Charité-Universitätsmedizin BerlinClinical Neurotechnology Laboratory, Department of Psychiatry and Neurosciences, Neurowissenschaftliches Forschungszentrum (NWFZ), Charité-Universitätsmedizin BerlinKliniken Beelitz GmbHKliniken Beelitz GmbHDepartment of Rehabilitation Medicine, Seoul National University College of Medicine, Seoul National University Bundang HospitalDepartment of Rehabilitation Medicine, Seoul National University College of Medicine, Seoul National University Bundang HospitalDepartment of Rehabilitation Medicine, Seoul National University College of Medicine, Seoul National University Bundang HospitalSRH Gesundheitszentrum Bad Wimpfen GmbHClinical Neurotechnology Laboratory, Department of Psychiatry and Neurosciences, Neurowissenschaftliches Forschungszentrum (NWFZ), Charité-Universitätsmedizin BerlinAbstract Background Assistive hand exoskeletons are promising tools to restore hand function after cervical spinal cord injury (SCI) but assessing their specific impact on bimanual hand and arm function is limited due to lack of reliable and valid clinical tests. Here, we introduce the Berlin Bimanual Test for Tetraplegia (BeBiTT) and demonstrate its psychometric properties and sensitivity to assistive hand exoskeleton-related improvements in bimanual task performance. Methods Fourteen study participants with subacute cervical SCI performed the BeBiTT unassisted (baseline). Thereafter, participants repeated the BeBiTT while wearing a brain/neural hand exoskeleton (B/NHE) (intervention). Online control of the B/NHE was established via a hybrid sensorimotor rhythm-based brain-computer interface (BCI) translating electroencephalographic (EEG) and electrooculographic (EOG) signals into open/close commands. For reliability assessment, BeBiTT scores were obtained by four independent observers. Besides internal consistency analysis, construct validity was assessed by correlating baseline BeBiTT scores with the Spinal Cord Independence Measure III (SCIM III) and Quadriplegia Index of Function (QIF). Sensitivity to differences in bimanual task performance was assessed with a bootstrapped paired t-test. Results The BeBiTT showed excellent interrater reliability (intraclass correlation coefficients > 0.9) and internal consistency (α = 0.91). Validity of the BeBiTT was evidenced by strong correlations between BeBiTT scores and SCIM III as well as QIF. Wearing a B/NHE (intervention) improved the BeBiTT score significantly (p < 0.05) with high effect size (d = 1.063), documenting high sensitivity to intervention-related differences in bimanual task performance. Conclusion The BeBiTT is a reliable and valid test for evaluating bimanual task performance in persons with tetraplegia, suitable to assess the impact of assistive hand exoskeletons on bimanual function.https://doi.org/10.1186/s12984-023-01137-4TetraplegiaExoskeletonBimanual task performanceBrain–computer interface (BCI)Clinical assessmentAssistive robotics
spellingShingle Cornelius Angerhöfer
Mareike Vermehren
Annalisa Colucci
Marius Nann
Peter Koßmehl
Andreas Niedeggen
Won-Seok Kim
Won Kee Chang
Nam-Jong Paik
Volker Hömberg
Surjo R. Soekadar
The Berlin Bimanual Test for Tetraplegia (BeBiTT): development, psychometric properties, and sensitivity to change in assistive hand exoskeleton application
Journal of NeuroEngineering and Rehabilitation
Tetraplegia
Exoskeleton
Bimanual task performance
Brain–computer interface (BCI)
Clinical assessment
Assistive robotics
title The Berlin Bimanual Test for Tetraplegia (BeBiTT): development, psychometric properties, and sensitivity to change in assistive hand exoskeleton application
title_full The Berlin Bimanual Test for Tetraplegia (BeBiTT): development, psychometric properties, and sensitivity to change in assistive hand exoskeleton application
title_fullStr The Berlin Bimanual Test for Tetraplegia (BeBiTT): development, psychometric properties, and sensitivity to change in assistive hand exoskeleton application
title_full_unstemmed The Berlin Bimanual Test for Tetraplegia (BeBiTT): development, psychometric properties, and sensitivity to change in assistive hand exoskeleton application
title_short The Berlin Bimanual Test for Tetraplegia (BeBiTT): development, psychometric properties, and sensitivity to change in assistive hand exoskeleton application
title_sort berlin bimanual test for tetraplegia bebitt development psychometric properties and sensitivity to change in assistive hand exoskeleton application
topic Tetraplegia
Exoskeleton
Bimanual task performance
Brain–computer interface (BCI)
Clinical assessment
Assistive robotics
url https://doi.org/10.1186/s12984-023-01137-4
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