The Effect of Jogging on Anterior Knee Laxity After Anterior Cruciate Ligament Reconstruction

Date of Award

Fall 12-1998

Document Type


Degree Name

Master of Science (MS)


Physical Therapy

Committee Director

Martha Walker

Committee Member

George Maihafer

Committee Member

John L. Echternach

Call Number for Print

Special Collections LD4331.P45 B68 1998


Jogging is commonly performed in the latter stages of the rehabilitation program (2½-3 months) following ACL reconstruction. However, its cyclic loading effect on the ACL graft, 4-6 months after surgery has not been examined. Therefore, the purpose of this study was to examine changes in anterior knee laxity before and after 15 minutes of jogging on the treadmill. Subjects (N=l 1) were 8 males and 3 females (X age= 30.27 ± 4.76 years; heights= 175.7 ± 10.7 cm; weights= 81.1 ± 15.9 kg) with unilateral ACL reconstruction (central 1/3 patellar tendon graft, postoperation range = 4-6 months). Measurements were made using KT-2000 ( MEDmetric, San Diego, CA) and recorded in millimeters of displacement at 133 N (30 lb) of anterior force. Data were analyzed with a paired t-test at P < 0.05. Results showed no statistical difference between the ACL reconstructed knee and the normal knee after exercise. This study concluded that ACL reconstructed knee with the central 1/3 patellar tendon graft, 4-6 months after surgery, performs similarly to the normal knee when stressed with jogging for 15 minute at speed of 5-6 mph. Therefore, jogging is a safe and appropriate exercise for ACL-reconstructed patient at this stage after surgery.


In Copyright. URI: http://rightsstatements.org/vocab/InC/1.0/ This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s).



This document is currently not available here.