توزيع كارمكانيكي اندام تحتاني افراد داراي سابقه جراحي رباط صليبي قدامي حين دويدن

Background: Individuals with a history of anterior cruciate ligament reconstruction (ACLR) represent altered running mechanics. Analysis of mechanical work can reveal compensatory mechanisms in running. Effects of ACLR on hip joint compensatory mechanisms is not well known. The aim of this study was to eva‎luate the lower limb mechanical work distribution in individuals with ACLR history. We hypothesized that ACLR individuals show altered lower limb mechanical work distribution which can increase the risk of hip an‎d ankle overuse. Methods: Kinetic an‎d kinematic data of 20 males with ACLR history an‎d 20 healthy males were collected bilaterally while running at 3.3 m/s. Hip, knee an‎d ankle joints positive an‎d negative work an‎d subsequent relative contribution in the sagittal plane were calculated. A mixed design MANOVA was used to detect between-group an‎d within-group (side-by-group interaction) effects of ACLR on mechanical work. Results: Involved knee showed smaller positive an‎d negative mechanical work compare to uninvolved an‎d control knee. Involved ankle showed greater positive work an‎d relative contribution compared to uninvolved an‎d control ankle. Involved hip showed greater negative work an‎d relative contribution compared to uninvolved an‎d control hip. Conclusion: Lower limb joints mechanical work an‎d relative contributions in the involved an‎d uninvolved sides of the ACLR individuals are different. These results show that ACLR affects hip an‎d ankle joints as well as knee joint. When returning to activity an‎d sport, mechanical work of the hip an‎d ankle joints as well as knee joint, must be considered in ACLR individuals.

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