Reliability of dynamic strength knee muscle testing in children

The Journal of Orthopaedic and Sports Physical Therapy
L MerliniC Granata

Abstract

The isokinetic knee test is reliable in young individuals in a broad age range between 6 years of age to puberty, but not specifically in the youngest subgroup, in which cooperation may be less dependable. Hence, the purpose of this study was to investigate the reliability of isokinetic knee flexor/extensor muscle torque in a narrow age range: 6-8 years old. The sample consisted of 12 boys tested in three sessions with 3 days of rest between sessions. During each session, two tests were performed with each knee. Intrasession correlation coefficients ranged between .94 and .99 for quadriceps and between .78 and .96 for hamstrings. Interclass correlation coefficients, which express the reliability of a single test, were high (ranging from .85 to .95). Analysis of variance for repeated measurements showed that sixfold repetition of the test had no significant effect on peak torque measurements. These data suggest that the isokinetic knee flexion/extension torque is reliable in boys 6-8 years old.

References

Nov 1, 1985·The American Journal of Sports Medicine·G C TabinT Bonci
Jan 1, 1988·The Journal of Orthopaedic and Sports Physical Therapy·A WeltmanF I Katch

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Citations

Jul 13, 2002·Muscle & Nerve·Luciano MerliniLucia Morandi
May 16, 2008·Pediatric Physical Therapy : the Official Publication of the Section on Pediatrics of the American Physical Therapy Association·Tammy S MacfarlaneChristine Stiller
Jun 2, 2011·Medical Science Monitor : International Medical Journal of Experimental and Clinical Research·David A GeierMark R Geier
Jul 25, 2013·Journal of Strength and Conditioning Research·Janet K KernMark R Geier
Aug 5, 2003·Sports Medicine·Mark De Ste CroixNeil Armstrong
Sep 6, 2011·The Journal of Orthopaedic and Sports Physical Therapy·Håvard MoksnesMay Arna Risberg
May 21, 2014·Pediatric Neurology·Anne M ConnollyUNKNOWN MDA DMD Clinical Research Network
Jul 10, 2012·Blood Reviews·David StephensenOona M Scott
Mar 16, 2012·The Knee·Birgit Juul-KristensenLars Remvig
Nov 23, 2011·Haemophilia : the Official Journal of the World Federation of Hemophilia·D StephensenO Scott
Aug 22, 2012·Muscle & Nerve·Christian A PitcherSiobhán L Reid
Sep 17, 2013·Muscle & Nerve·Thorsten RudroffMegan M Kelsey
Feb 25, 2009·Archives of Physical Medicine and Rehabilitation·Sara R PivaAnthony Delitto
Sep 15, 2005·The American Journal of Sports Medicine·Sue D Barber-WestinCatherine Walsh
Mar 2, 2006·Pediatric Physical Therapy : the Official Publication of the Section on Pediatrics of the American Physical Therapy Association·Mitzi WigginMary Watson
Jun 22, 2012·The Journal of Bone and Joint Surgery. American Volume·Håvard MoksnesMay Arna Risberg
Aug 19, 2015·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·Marianne Bakke JohnsenMay Arna Risberg
Mar 7, 2021·International Journal of Environmental Research and Public Health·Roland LuchnerChristian Raschner

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