The Intra- and Inter-Rater Reliability of an Instrumented Spasticity Assessment in Children with Cerebral Palsy

Despite the impact of spasticity, there is a lack of objective, clinically reliable and valid tools for its assessment. This study aims to evaluate the reliability of various performance- and spasticity-related parameters collected with a manually controlled instrumented spasticity assessment in fou...

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Bibliographic Details
Published in:PloS one 2015-07, Vol.10 (7), p.e0131011
Main Authors: Schless, Simon-Henri, Desloovere, Kaat, Aertbeliën, Erwin, Molenaers, Guy, Huenaerts, Catherine, Bar-On, Lynn
Format: Article
Language:English
Subjects:
Adolescent
Analysis
Biomechanics
Cerebral palsy
Cerebral Palsy - diagnosis
Cerebral Palsy - physiopathology
Child
Child, Preschool
Children
Correlation analysis
Correlation coefficient
Correlation coefficients
Electromyography
Electromyography - standards
EMG
Error analysis
Evaluation
Female
Hip
Hospitals
Humans
Inertial sensing devices
Laboratories
Leg - innervation
Leg - physiopathology
Muscle Spasticity - diagnosis
Muscle Spasticity - physiopathology
Muscle, Skeletal - physiopathology
Muscles
Neurophysiology
Observer Variation
Paralysis
Quantitative psychology
Range of Motion, Articular
Rehabilitation
Reliability analysis
Reproducibility of Results
Sensors
Spasticity
Standard error
Studies
Torque
Velocity
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Summary:Despite the impact of spasticity, there is a lack of objective, clinically reliable and valid tools for its assessment. This study aims to evaluate the reliability of various performance- and spasticity-related parameters collected with a manually controlled instrumented spasticity assessment in four lower limb muscles in children with cerebral palsy (CP). The lateral gastrocnemius, medial hamstrings, rectus femoris and hip adductors of 12 children with spastic CP (12.8 years, ±4.13 years, bilateral/unilateral involvement n=7/5) were passively stretched in the sagittal plane at incremental velocities. Muscle activity, joint motion, and torque were synchronously recorded using electromyography, inertial sensors, and a force/torque load-cell. Reliability was assessed on three levels: (1) intra- and (2) inter-rater within session, and (3) intra-rater between session. Parameters were found to be reliable in all three analyses, with 90% containing intra-class correlation coefficients >0.6, and 70% of standard error of measurement values
ISSN:1932-6203
1932-6203
DOI:10.1371/journal.pone.0131011