In vivo kinematics of the ACL-deficient limb during running and cutting

J. C. Waite, D. J. Beard, C. A. Dodd, D. W. Murray, H. S. Gill

Research output: Contribution to journalArticle

39 Citations (Scopus)

Abstract

Anterior cruciate ligament-deficient (ACLD) knee kinematics during high-demand activities are poorly understood. We have devised a new method, using gait analysis, to more accurately assess 3-D in vivo kinematics of the knee. This has enabled us to report on how knee kinematics are altered after ACL rupture, during running and cutting. Fifteen unilaterally ACLD subjects were assessed using a 12-camera 100 Hz VICON motion analysis system. Simultaneous electromyographical (EMG) recordings were used to assess the role of the sensorimotor system in knee joint stability. All subjects were able to perform demanding cutting activities without experiencing symptoms of instability. We found that running produces fundamentally different kinematic patterns to those seen during walking. Tibiofemoral translation in the anteroposterior plane is controlled to within normal limits. Conversely, coronal translation and rotation are poorly controlled. We found that the injured leg was maintained in greater extension during the stance phase of all running activities studied and that the quadriceps muscle was active for longer during this period. We believe that low-demand activities, such as walking, do not reproduce kinematics relevant to ACLD instability and that future investigations into functional instability in the ACLD knee should focus on coronal and rotational displacements.
Original languageEnglish
Pages (from-to)377-384
Number of pages8
JournalKnee Surgery, Sports Traumatology, Arthroscopy
Volume13
Issue number5
DOIs
Publication statusPublished - 2005

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Biomechanical Phenomena
Running
Anterior Cruciate Ligament
Extremities
Knee
Walking
Quadriceps Muscle
Knee Joint
Gait
Rupture
Leg

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In vivo kinematics of the ACL-deficient limb during running and cutting. / Waite, J. C.; Beard, D. J.; Dodd, C. A.; Murray, D. W.; Gill, H. S.

In: Knee Surgery, Sports Traumatology, Arthroscopy, Vol. 13, No. 5, 2005, p. 377-384.

Research output: Contribution to journalArticle

Waite, J. C. ; Beard, D. J. ; Dodd, C. A. ; Murray, D. W. ; Gill, H. S. / In vivo kinematics of the ACL-deficient limb during running and cutting. In: Knee Surgery, Sports Traumatology, Arthroscopy. 2005 ; Vol. 13, No. 5. pp. 377-384.
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