%0 Journal Article %1 Pierce2006 %A Pierce, Samuel R %A Lauer, Richard T %A Shewokis, Patricia A %A Rubertone, Joseph A %A Orlin, Margo N %D 2006 %J Arch Phys Med Rehabil %K Adolescent; Cerebral Palsy; Child; Female; Humans; Isometric Contraction; Knee; Male; Muscle Spasticity; Muscle, Skeletal; Range of Motion, Articular; Rehabilitation; Reproducibility Results; Torque %N 5 %P 697--702 %R 10.1016/j.apmr.2006.01.020 %T Test-retest reliability of isokinetic dynamometry for the assessment of spasticity of the knee flexors and knee extensors in children with cerebral palsy. %U http://dx.doi.org/10.1016/j.apmr.2006.01.020 %V 87 %X OBJECTIVE: 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). DESIGN: Test-retest reliability study. SETTING: Pediatric orthopedic hospital. PARTICIPANTS: Fifteen children with CP. INTERVENTION: 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. MAIN OUTCOME MEASURES: 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. RESULTS: 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. CONCLUSIONS: 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 reliability. However, the absolute reliability of spasticity data should be considered cautiously.

@article{Pierce2006, abstract = {OBJECTIVE: 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). DESIGN: Test-retest reliability study. SETTING: Pediatric orthopedic hospital. PARTICIPANTS: Fifteen children with CP. INTERVENTION: 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. MAIN OUTCOME MEASURES: 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. RESULTS: 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. CONCLUSIONS: 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 reliability. However, the absolute reliability of spasticity data should be considered cautiously.}, added-at = {2014-07-19T21:02:26.000+0200}, author = {Pierce, Samuel R and Lauer, Richard T and Shewokis, Patricia A and Rubertone, Joseph A and Orlin, Margo N}, biburl = {https://www.bibsonomy.org/bibtex/2e2dc30d9d76c7abdad83e87beaa5d336/ar0berts}, doi = {10.1016/j.apmr.2006.01.020}, groups = {public}, interhash = {2ca3d8f22a68e819a76c7275549cdfc0}, intrahash = {e2dc30d9d76c7abdad83e87beaa5d336}, journal = {Arch Phys Med Rehabil}, keywords = {Adolescent; Cerebral Palsy; Child; Female; Humans; Isometric Contraction; Knee; Male; Muscle Spasticity; Muscle, Skeletal; Range of Motion, Articular; Rehabilitation; Reproducibility Results; Torque}, month = May, number = 5, pages = {697--702}, pii = {S0003-9993(06)00103-1}, pmid = {16635633}, timestamp = {2014-07-19T21:02:26.000+0200}, title = {Test-retest reliability of isokinetic dynamometry for the assessment of spasticity of the knee flexors and knee extensors in children with cerebral palsy.}, url = {http://dx.doi.org/10.1016/j.apmr.2006.01.020}, username = {ar0berts}, volume = 87, year = 2006 }