Test-retest reliability of isokinetic dynamometry for the assessment of spasticity of the knee flexors and knee extensors in children with cerebral palsy

Archives of Physical Medicine and Rehabilitation
Samuel R PierceMargo N Orlin

Abstract

To assess test-retest reliability of the peak resistance torque and slope of work methods of spasticity measurement of the knee flexors and extensors in children with cerebral palsy (CP). Test-retest reliability study. Pediatric orthopedic hospital. Fifteen children with CP. Knee extensor and flexor spasticity was assessed with an isokinetic dynamometer using passive movements at 15 degrees, 90 degrees, and 180 degrees/s taken 1 hour apart. Peak resistive torque and work were calculated. The relative and absolute test-retest reliability was calculated by using intraclass correlation coefficients (ICCs) and Bland-Altman plots, respectively. Relative reliability was good (ICC>.75) for slope-of-work and peak resistance torque measurements at a velocity of 180 degrees/s, whereas reliability of peak torque measurements was decreased (ICC<.51) at slower velocities for both muscle groups. The 95% limits of agreement of Bland-Altman plots contained most data points for both methods, but the width of the limits of agreement were wide. The measurement of spasticity of the knee extensors and flexors in children with CP using peak-resistance torque at 180 degrees/s and the slope of work method has acceptable relative test-retest reliabilit...Continue Reading

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Citations

Apr 3, 2012·Pediatric Physical Therapy : the Official Publication of the Section on Pediatrics of the American Physical Therapy Association·Samuel R PierceRichard T Lauer
Nov 28, 2012·Journal of Athletic Training·Sara P ChrismanMelissa A Schiff
Aug 10, 2010·Disability and Rehabilitation. Assistive Technology·Annick C SchmartzMarc Bolliger
Jul 7, 2015·Disability and Rehabilitation·Siobhan Reid
Jul 30, 2014·Disability and Rehabilitation·Viroj Wiwanitkit
Mar 20, 2010·Archives of Physical Medicine and Rehabilitation·Samuel R PierceRichard T Lauer
Oct 2, 2007·Pediatric Neurology·Thomas BandholmBente R Jensen
Sep 11, 2007·Archives of Physical Medicine and Rehabilitation·Sandy A Ross, Jack R Engsberg
Jun 18, 2011·Developmental Medicine and Child Neurology·Therese E JohnstonJack R Engsberg
Apr 30, 2011·Physical Therapy·Therese E Johnston, Susan F Wainwright
Oct 16, 2008·New Directions for Youth Development·Tom Cockburn
Oct 9, 2009·Developmental Medicine and Child Neurology·Matthew J GurkaRichard C Henderson
Jun 1, 2008·Economic Inquiry·James J Heckman
May 26, 2010·Developmental Medicine and Child Neurology·Fiona ArrowsmithEdward O'Loughlin
May 27, 2015·Neuroreport·Dae Hyun KimDeog Young Kim
Nov 18, 2017·Physiotherapy Research International : the Journal for Researchers and Clinicians in Physical Therapy·Samaneh GholamiMahdi Dadgoo
Mar 6, 2021·Frontiers in Bioengineering and Biotechnology·Lizeth H SlootLynn Bar-On

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