title: Isokinetic dynamometry in anterior cruciate ligament injury and reconstruction.
abstract: The use of isokinetic dynamometry has often been criticised based on the face-validity argument that isokinetic movements poorly resemble the everyday multi-segmented, dynamic activities of human movements. In the anterior cruciate ligament (ACL) reconstruction or deficiency population where muscle deficits are ubiquitous, this review paper has made a case for using isokinetic dynamometry to isolate and quantify these deficits in a safe and controlled manner. More importantly, the usefulness of isokinetic dynamometry, as applied in individuals with ACL reconstruction or deficiency, is attested by its established known-group and convergent validity. Known-group validity is demonstrated by the extent to which a given isokinetic measure is able to identify individuals who could and could not resume pre-morbid athletic or strenuous activities with minimal functional limitations following an ACL injury. Convergent validity is demonstrated by the extent to which a given isokinetic measure closely associates with self-report measures of knee function in individuals with ACL reconstruction. A basic understanding of the measurement properties of isokinetic dynamometry will guide the clinicians in providing reasoned interventions and advancing the clinical care of their clients.
authors.affiliation: Centre for Health, Exercise and Sports Medicine, The University of Melbourne, Australia. puayonghao@gmail.com
authors.forename: Yong Hao
authors.initials: YH
authors.lastname: Pua
authors.forename: Adam L
authors.initials: AL
authors.lastname: Bryant
authors.forename: Julie R
authors.initials: JR
authors.lastname: Steele
authors.forename: Robert U
authors.initials: RU
authors.lastname: Newton
authors.forename: Tim V
authors.initials: TV
authors.lastname: Wrigley
mesh_terms: D000293:Adolescent; D000328:Adult; D016118:Anterior Cruciate Ligament / Q000503:physiopathology / Q000601:surgery*; D000070598:Anterior Cruciate Ligament Injuries; D001696:Biomechanical Phenomena; D005260:Female; D006801:Humans; D007718:Knee Injuries / Q000503:physiopathology / Q000601:surgery; D008297:Male; D008875:Middle Aged; D009119:Muscle Contraction / Q000502:physiology*; D019637:Orthopedic Procedures; D016059:Range of Motion, Articular / Q000502:physiology; D019415:Torque