Longitudinal kinetic and kinematic changes in functional tasks after reconstructing anterior cruciate ligament: A systematic review



1 Faculty of physical education and sports sciences, Imamreza University, Mashhad, Iran

2 university of kharazmi

3 Faculty of physical education and sports sciences, Kharazmi University, Mashhad, Iran


Introduction:Post- anterior cruciate ligament reconstruction(ACLR) return to sport is reckoned one of the most important issues and the main factor preventing a safe return to sports is deemed biomechanical asymmetry between the limbs, which plays a significant role in the risk of re-injury.
Materials and Methods: Articles relevant to biomechanical asymmetries between (ACLR and uninjured) limbs were purposely searched in the Google Scholar,Science Direct,PubMed MEDLINE, and Scopus databases from 2007 to 2021, and this search resulted in 44 selected scientific articles according to the research criteria.
Results:Most of the kinetic and kinematic parameters observed in the intervals of 3, 6, 9, 12, and 18 months after ACLR between the athletes’ vertical ground reaction force(vGRF), peak hip abduction moment, peak knee valgus angle, peak knee flexion moment and angle, during the functional tasks, and also changes were seen in the articles up to 28 months, although research in this area was limited.
Conclusion:The findings of this systematic review showed that biomechanical variables may vary between the limbs of ACLR patients between 18 and over 28 months. Therefore, a better understanding of the biomechanics of the limbs in the time intervals after ACLR can provide a safer and sooner return to sport.