Association between T2 relaxation time and biomechanical loading of the anterior cruciate ligament in healthy individuals
Zahradnik, David; Hamill, Joseph; Plesek, Jan; Blaschova, Denisa; Burda, Michal; Nieminen, Miika; Casula, Victor; Farana, Roman; Uchytil, Jaroslav; Slovak, Lukáš; Skypala, Jiri; Jandačka, Daniel (2025-01-31)
Zahradnik, David
Hamill, Joseph
Plesek, Jan
Blaschova, Denisa
Burda, Michal
Nieminen, Miika
Casula, Victor
Farana, Roman
Uchytil, Jaroslav
Slovak, Lukáš
Skypala, Jiri
Jandačka, Daniel
Taylor & Francis
31.01.2025
Zahradnik, D., Hamill, J., Plesek, J., Blaschova, D., Burda, M., Nieminen, M., … Jandačka, D. (2025). Association between T2 relaxation time and biomechanical loading of the anterior cruciate ligament in healthy individuals. Sports Biomechanics, 1–16. https://doi.org/10.1080/14763141.2025.2458475
https://creativecommons.org/licenses/by/4.0/
© 2025 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. The terms on which this article has been published allow the posting of the Accepted Manuscript in a repository by the author(s) or with their consent.
https://creativecommons.org/licenses/by/4.0/
© 2025 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. The terms on which this article has been published allow the posting of the Accepted Manuscript in a repository by the author(s) or with their consent.
https://creativecommons.org/licenses/by/4.0/
Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi:oulu-202502031444
https://urn.fi/URN:NBN:fi:oulu-202502031444
Tiivistelmä
Abstract
Anterior cruciate ligament (ACL) injury is common in sports that include ‘change in direction’ tasks. The aim of the current study was to determine the association between T2 relaxation time (an indicator of ACL integrity) of the distal portion of the ACL sub-region, biomechanical loading factors of the ACL, sex, and sport status of the participants. Participants between 18 to 35 years performed unanticipated ‘change in direction’ trials at their maximal self-preferred speed. The maximal knee flexion angle and the valgus moment of the right knee during the weight acceptance phase were analysed. MRI data (T2 relaxation time) of the ACL was also collected. Among the independent variables involved in the linear regression model, the association of the valgus moment and sex were statistically significant (p = 0.01 and p = 0.001 respectively). In conclusion, the main finding of the study is that higher T2 was significantly associated with a higher valgus moment as acute response to the ‘change in direction’ tasks. New sentence: In conclusion, the main finding of the study is that higher T2 was significantly associated with a higher valgus moment during ‘change in direction’ tasks.
Anterior cruciate ligament (ACL) injury is common in sports that include ‘change in direction’ tasks. The aim of the current study was to determine the association between T2 relaxation time (an indicator of ACL integrity) of the distal portion of the ACL sub-region, biomechanical loading factors of the ACL, sex, and sport status of the participants. Participants between 18 to 35 years performed unanticipated ‘change in direction’ trials at their maximal self-preferred speed. The maximal knee flexion angle and the valgus moment of the right knee during the weight acceptance phase were analysed. MRI data (T2 relaxation time) of the ACL was also collected. Among the independent variables involved in the linear regression model, the association of the valgus moment and sex were statistically significant (p = 0.01 and p = 0.001 respectively). In conclusion, the main finding of the study is that higher T2 was significantly associated with a higher valgus moment as acute response to the ‘change in direction’ tasks. New sentence: In conclusion, the main finding of the study is that higher T2 was significantly associated with a higher valgus moment during ‘change in direction’ tasks.
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