title: Using an accelerometer and the step-up-and-over test to evaluate the knee function of patients with anterior cruciate ligament reconstruction.
abstract: Evaluating the dynamic knee function of patients after anterior cruciate ligament reconstruction is a challenge. A variety of objective tests have been developed but for various reasons few are regularly used in the clinic. It may be practical to perform the step-up-and-over test with an accelerometer.
  
  
  
  A control group (N=26) and an experimental group with a reconstructed anterior cruciate ligament (N=25) completed questionnaires quantifying subjective knee function and fear of re-injury and then completed the step-up-and-over test.
  
  
  
  Results showed that the experimental group performed differently than the control group for the step-up-and-over test's Lift Symmetry and Impact Symmetry (P<0.05) and performance on these measures was related to the participant's subjective knee function (ρ=-0.46, P<0.01; ρ=-0.33, P<0.05, respectively). Supplemental results for individual leg performance and the patient's fear of re-injury are also reported and discussed.
  
  
  
  Performance on the step-up-and-over test is different for participants with anterior cruciate ligament reconstruction than for those with intact anterior cruciate ligaments, and that performance is related to one's opinion of their knee's function.
authors.affiliation: Biomechanics, Ergonomics and Engineering Laboratory, School of Kinesiology and Health Studies, 28 Division Street, Queen's University, Kingston, Canada. Electronic address: 8cb31@queensu.ca.
authors.forename: Christopher A
authors.initials: CA
authors.lastname: Bailey
authors.affiliation: Department of Surgery, School of Medicine, Queen's University & Kingston General Hospital, 76 Stuart Street, Queen's University, Kingston, Canada. Electronic address: bardanad@kgh.kari.net.
authors.forename: Davide D
authors.initials: DD
authors.lastname: Bardana
authors.affiliation: Biomechanics, Ergonomics and Engineering Laboratory, School of Kinesiology and Health Studies, 28 Division Street, Queen's University, Kingston, Canada. Electronic address: pat.costigan@queensu.ca.
authors.forename: Patrick A
authors.initials: PA
authors.lastname: Costigan
mesh_terms: D061725:Accelerometry; D000328:Adult; D000070598:Anterior Cruciate Ligament Injuries / Q000503:physiopathology* / Q000601:surgery*; D059549:Anterior Cruciate Ligament Reconstruction; D005080:Exercise Test / Q000379:methods*; D005260:Female; D006801:Humans; D007719:Knee Joint / Q000502:physiology*; D008297:Male; D011795:Surveys and Questionnaires; D055815:Young Adult
keywords: Accelerometer; Anterior cruciate ligament; Knee evaluation; Knee function; Step-up-and-over test