caa a22 4500 605460523 CHVBK 20210128100239.0 cr unu---uuuuu 210128e20151101xx s 000 0 eng 10.1007/s00167-014-3168-1 doi (NATIONALLICENCE)springer-10.1007/s00167-014-3168-1 Speed, not magnitude, of knee extensor torque production is associated with self-reported knee function early after anterior cruciate ligament reconstruction [Elektronische Daten] [Chao-Jung Hsieh, Peter Indelicato, Michael Moser, Krista Vandenborne, Terese Chmielewski] Purpose: To examine the magnitude and speed of knee extensor torque production at the initiation of advanced anterior cruciate ligament (ACL) reconstruction rehabilitation and the associations with self-reported knee function. Methods: Twenty-eight subjects who were 12weeks post-ACL reconstruction and 28 age- and sex-matched physically active controls participated in this study. Knee extensor torque was assessed bilaterally with an isokinetic dynamometer at 60°/s. The variables of interest were peak torque, average rate of torque development, time to peak torque and quadriceps symmetry index. Knee function was assessed with the International Knee Documentation Committee Subjective Knee Form (IKDC-SKF). Results: Peak torque and average rate of torque development were lower on the surgical side compared to the non-surgical side and controls. Quadriceps symmetry index was lower in subjects with ACL reconstruction compared to controls. On the surgical side, average rate of torque development was positively correlated with IKDC-SKF score (r=0.379) while time to peak torque was negatively correlated with IKDC-SKF score (r=−0.407). Conclusions: At the initiation of advanced ACL reconstruction rehabilitation, the surgical side displayed deficits in peak torque and average rate of torque development. A higher rate of torque development and shorter time to peak torque were associated with better self-reported knee function. The results suggest that the rate of torque development should be addressed during advanced ACL reconstruction rehabilitation and faster knee extensor torque generation may lead to better knee function. Level of evidence: III. Springer-Verlag Berlin Heidelberg, 2014 Anterior cruciate ligament reconstruction nationallicence Quadriceps strength nationallicence Isokinetic nationallicence Rehabilitation outcomes nationallicence Hsieh Chao-Jung Department of Physical Therapy, University of Florida, Gainesville, FL, USA aut Indelicato Peter Department of Orthopaedics and Rehabiltiation, University of Florida, Gainesville, FL, USA aut Moser Michael Department of Orthopaedics and Rehabiltiation, University of Florida, Gainesville, FL, USA aut Vandenborne Krista Department of Physical Therapy, University of Florida, Gainesville, FL, USA aut Chmielewski Terese Department of Physical Therapy, University of Florida, Gainesville, FL, USA aut Knee Surgery, Sports Traumatology, Arthroscopy Springer Berlin Heidelberg 23/11(2015-11-01), 3214-3220 0942-2056 23:11<3214 2015 23 167 https://doi.org/10.1007/s00167-014-3168-1 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s00167-014-3168-1 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Hsieh Chao-Jung Department of Physical Therapy, University of Florida, Gainesville, FL, USA aut NATIONALLICENCE 700 1- Indelicato Peter Department of Orthopaedics and Rehabiltiation, University of Florida, Gainesville, FL, USA aut NATIONALLICENCE 700 1- Moser Michael Department of Orthopaedics and Rehabiltiation, University of Florida, Gainesville, FL, USA aut NATIONALLICENCE 700 1- Vandenborne Krista Department of Physical Therapy, University of Florida, Gainesville, FL, USA aut NATIONALLICENCE 700 1- Chmielewski Terese Department of Physical Therapy, University of Florida, Gainesville, FL, USA aut NATIONALLICENCE 773 0- Knee Surgery, Sports Traumatology, Arthroscopy Springer Berlin Heidelberg 23/11(2015-11-01), 3214-3220 0942-2056 23:11<3214 2015 23 167