Comparison of Muscle Electromyography Changes After Anterior Cruciate Ligament Reconstruction with Healthy Subjects

Document Type : Original article

Authors

1 PhD Candidate of Corrective Exercises and Sports Injuries Department of Corrective Exercises and Sports Injuries, School of Physical Education and Sport Sciences, University of Guilan, Rasht, Iran

2 Professor of Corrective Exercises and Sports Injuries, Department of Corrective Exercises and Sports Injuries, School of Physical Education and Sport Sciences, University of Guilan, Rasht, Iran.

10.22037/sjrm.2023.117227.3224

Abstract

Objective: The aim of this research was to compare the intensity and duration of firing eight muscles during 300 milliseconds of walking between individuals with anterior cruciate ligament reconstruction (ACLR) and healthy subjects.

Materials & Methods: Forty six participants were divided into a ACLR group and a healthy group. Muscle activity was measured using electromyography (EMG) 100 milliseconds before (swing phase) and 200 milliseconds after foot contact with the ground(stance phase).

Results: The results of the research showed that the intensity and duration of firing in all eight examined muscles, decreased on average 9 months after the anterior cruciate ligament compared to healthy subjects. But this decrease in the vastus medialis muscle was significant in both intensity and duration, and also was observed a significant decrease in firing duration in the erector spinae and rectus abdominis muscles.

Conclusion: The most observed changes were related to the vastus medialis muscle, which was significantly reduced in both intensity and duration of firing in subjects with anterior cruciate ligament reconstruction compared to healthy subjects. After the vastus medialis, two core muscles erector spinae and rectus abdominis, had the most changes between the two groups. It is very important for rehabilitation specialists have a special look at the core muscles in addition to the muscles of the lower limbs, and this special look is not only for exercises that increase the intensity of activity. The rehabilitation training paradigm needs to explore and pursue approaches that help improve the brain's timing planning.

Keywords: Electromyography, Anterior Cruciate Ligament Reconstruction, Rehabilitation, Return to Sports.

Keywords

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The Scientific Journal of Rehabilitation Medicine

Articles in Press, Accepted Manuscript
Available Online from 29 October 2023

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History

  • Receive Date: 28 September 2023
  • Revise Date: 17 October 2023
  • Accept Date: 25 October 2023
  • First Publish Date: 29 October 2023

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