Rehabilitation after ACL injury: A fluoroscopic study on the effects of type of exercise on the knee sagittal plane arthrokinematics

Norouzi, S ; Sharif University of Technology | 2013

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  1. Type of Document: Article
  2. DOI: 10.1155/2013/248525
  3. Publisher: 2013
  4. Abstract:
  5. A safe rehabilitation exercise for anterior cruciate ligament (ACL) injuries needs to be compatible with the normal knee arthrokinematics to avoid abnormal loading on the joint structures. The objective of this study was to measure the amount of the anterior tibial translation (ATT) of the ACL-deficient knees during selective open and closed kinetic chain exercises. The intact and injured knees of fourteen male subjects with unilateral ACL injury were imaged using uniplanar fluoroscopy, while the subjects performed forward lunge and unloaded/loaded open kinetic knee extension exercises. The ATTs were measured from fluoroscopic images, as the distance between the tibial and femoral reference points, at seven knee flexion angles, from 0° to 90°. No significant differences were found between the ATTs of the ACL-deficient and intact knees at all flexion angles during forward lunge and unloaded open kinetic knee extension (P < 0.05). During loaded open kinetic knee extension, however, the ATTs of the ACL deficient knees were significantly larger than those of the intact knees at 0° (P = 0.002) and 15° (P = 0.012). It was suggested that the forward lunge, as a weight-bearing closed kinetic chain exercise, provides a safer approach for developing muscle strength and functional stability in rehabilitation program of ACL-deficient knees, in comparison with open kinetic knee extension exercise
  6. Keywords:
  7. Adult ; Anterior tibial translation ; Clinical article ; Closed kinetic chain exercise ; Fluoroscopy ; Human ; Kinematics ; knee function ; Muscle strength ; Musculoskeletal system parameters ; Open kinetic chain exercise ; Pilot study ; Range of motion ; Biomechanics ; Injury ; Joint characteristics and functions ; Kinesiotherapy ; Knee ; Knee injury ; Pathophysiology ; Volunteer ; Anterior Cruciate Ligament ; Biomechanical Phenomena ; Exercise Therapy ; Humans ; Knee Injuries ; Knee Joint ; Male ; Range of Motion, Articular ; Volunteers ; Weight-Bearing
  8. Source: BioMed Research International ; Volume 2013 , July , 2013 ; 23146133 (ISSN)
  9. URL: http://www.hindawi.com/journals/bmri/2013/248525