Item request has been placed! ×
Item request cannot be made. ×
loading  Processing Request

Decreased quadriceps force steadiness following anterior cruciate ligament reconstruction is associated with altered running kinematics.

Item request has been placed! ×
Item request cannot be made. ×
loading   Processing Request
  • معلومة اضافية
    • Author-Supplied Keywords:
      ACL reconstruction
      Biomechanics
      Force steadiness
      Knee
      Quadriceps
    • Abstract:
      Anterior cruciate ligament reconstruction is associated with quadriceps dysfunction and altered knee mechanics, but the relationship between these outcomes is not clear. Inclusion of metrics such as the stability of torque output could provide additional insights into the relationship between quadriceps dysfunction and knee mechanics. The purposes of this study were to: (1) measure the difference in quadriceps force steadiness between anterior cruciate ligament reconstructed and contralateral limbs; and (2) assess the relationship of quadriceps force steadiness and peak torque with knee flexion excursion during running. Twenty-eight participants (14 female, age 20 (5) years) underwent quadriceps strength testing and gait analysis. Force steadiness was measured with the standard deviation and coefficient of variation of the participants' detrended torque. Knee flexion excursion was calculated during the stance phase of running trials. Differences between limbs for force steadiness and peak torque were assessed with paired sample t -tests, and a Pearson's product-moment correlation coefficient determined the relationship between pairs of variables. Anterior cruciate ligament reconstructed limbs presented with a significant deficit in relative force steadiness compared to the contralateral limb (4.03 (1.04) % and 3.58 (1.41) % (P <.05), respectively). In addition, the relationship of quadriceps strength and force steadiness with knee flexion excursion was altered in anterior cruciate ligament reconstructed limbs due to the inability of the quadriceps to sustain a controlled force output. These results suggest that considering both the magnitude and quality of force production can provide important insight into comprehensive quadriceps function. • Changes in knee mechanics are not fully explained by quadriceps weakness. • Anterior cruciate reconstructed limbs display hindered quadriceps force steadiness. • Quadriceps force steadiness is associated with altered running kinematics. • Quantifying both strength and steadiness helps further elucidate muscle dysfunction. [ABSTRACT FROM AUTHOR]
    • Abstract:
      Copyright of Clinical Biomechanics is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
    • Author Affiliations:
      1College of Health Sciences, Department of Rehabilitation Sciences, University of Kentucky, Lexington, KY 40508, USA
      2College of Medicine, Department of Orthopedic Surgery and Sports Medicine, University of Kentucky, Lexington, KY 40508, USA
    • Full Text Word Count:
      4297
    • ISSN:
      0268-0033
    • Accession Number:
      10.1016/j.clinbiomech.2019.11.021
    • Accession Number:
      142319371
  • Citations
    • ABNT:
      SPENCER, A. et al. Decreased quadriceps force steadiness following anterior cruciate ligament reconstruction is associated with altered running kinematics. Clinical Biomechanics, [s. l.], v. 72, p. 58–62, 2020. DOI 10.1016/j.clinbiomech.2019.11.021. Disponível em: http://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=asn&AN=142319371&custid=s8280428. Acesso em: 29 maio. 2020.
    • AMA:
      Spencer A, Davis K, Jacobs C, Johnson D, Ireland ML, Noehren B. Decreased quadriceps force steadiness following anterior cruciate ligament reconstruction is associated with altered running kinematics. Clinical Biomechanics. 2020;72:58-62. doi:10.1016/j.clinbiomech.2019.11.021.
    • APA:
      Spencer, A., Davis, K., Jacobs, C., Johnson, D., Ireland, M. L., & Noehren, B. (2020). Decreased quadriceps force steadiness following anterior cruciate ligament reconstruction is associated with altered running kinematics. Clinical Biomechanics, 72, 58–62. https://doi.org/10.1016/j.clinbiomech.2019.11.021
    • Chicago/Turabian: Author-Date:
      Spencer, Alex, Kylie Davis, Cale Jacobs, Darren Johnson, Mary Lloyd Ireland, and Brian Noehren. 2020. “Decreased Quadriceps Force Steadiness Following Anterior Cruciate Ligament Reconstruction Is Associated with Altered Running Kinematics.” Clinical Biomechanics 72 (February): 58–62. doi:10.1016/j.clinbiomech.2019.11.021.
    • Harvard:
      Spencer, A. et al. (2020) ‘Decreased quadriceps force steadiness following anterior cruciate ligament reconstruction is associated with altered running kinematics’, Clinical Biomechanics, 72, pp. 58–62. doi: 10.1016/j.clinbiomech.2019.11.021.
    • Harvard: Australian:
      Spencer, A, Davis, K, Jacobs, C, Johnson, D, Ireland, ML & Noehren, B 2020, ‘Decreased quadriceps force steadiness following anterior cruciate ligament reconstruction is associated with altered running kinematics’, Clinical Biomechanics, vol. 72, pp. 58–62, viewed 29 May 2020, .
    • MLA:
      Spencer, Alex, et al. “Decreased Quadriceps Force Steadiness Following Anterior Cruciate Ligament Reconstruction Is Associated with Altered Running Kinematics.” Clinical Biomechanics, vol. 72, Feb. 2020, pp. 58–62. EBSCOhost, doi:10.1016/j.clinbiomech.2019.11.021.
    • Chicago/Turabian: Humanities:
      Spencer, Alex, Kylie Davis, Cale Jacobs, Darren Johnson, Mary Lloyd Ireland, and Brian Noehren. “Decreased Quadriceps Force Steadiness Following Anterior Cruciate Ligament Reconstruction Is Associated with Altered Running Kinematics.” Clinical Biomechanics 72 (February 2020): 58–62. doi:10.1016/j.clinbiomech.2019.11.021.
    • Vancouver/ICMJE:
      Spencer A, Davis K, Jacobs C, Johnson D, Ireland ML, Noehren B. Decreased quadriceps force steadiness following anterior cruciate ligament reconstruction is associated with altered running kinematics. Clinical Biomechanics [Internet]. 2020 Feb [cited 2020 May 29];72:58–62. Available from: http://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=asn&AN=142319371&custid=s8280428