Comparison of the Electromyography of the Leg Muscles and the Time to Achieve Stability during Landing in Individuals with and without Chronic Ankle Instability

Document Type : Original article

Authors

1 MSc Student of Sport Injuries, Corrective Exercises, Faculty of Physical Education and Sport Sciences, University of Guilan, Rasht, Iran

2 PhD Student of Sport Biomechanics, Faculty of Physical Education and Sport Sciences, Kharazmi University, Tehran, Iran

3 Assistant Professor, Department of Sport Injuries & Corrective Exercise, University of Guilan, Rasht, Iran

Abstract

Background and Aims: Ankle instability is one of the most commonly encountered injuries in emergency centers and those with postural stability deficits are sustainable. The purpose of the present study was to compare the time to achieve stability and ankle muscle activity during landing in individuals with functional ankle instability and healthy controls.
Materials and Methods: In the current descriptive study, 15 students with ankle instability and 15 healthy participant were recruited as targeted and available sample in Karaj city. A force plate and surface electromyography to calculate the time to stabilization and medial gastrocnemius muscles, soleus, the tibialis anterior, and peroneus lunges were used.
Results: There was a significant difference between experimental group and control group in the time to achieve the stability of the anterior-posterior direction during the landing movement between the experimental and the control groups (P = 0.001), and this difference was significant in the internal-external context (P = 0/000). Also, statistical results regarding comparison of the electrical activities of the selected muscles showed no significant difference between the experimental and the control groups during the landing movement in the medial gastrocnemius, but there was a significant difference in soleus, tibialis anterior, and peroneus lunges muscles.
Conclusion: According to the results obtained in the present study, it seems that ankle instability can decrease stability and reduce the stability and alteration of the activity of soleus, tibialis anterior muscles, and peroneus lunges. Decrease in the time to reach stability and muscle disfunction in the group with ankle instability force us to use joint rehabilitation with proprioception exercises and concentration on soleus, peroneus lunges, and Tibialis anterior in these individuals.

Keywords

Main Subjects

References

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The Scientific Journal of Rehabilitation Medicine
Volume 8, Issue 4
January 2020
Pages 65-72

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History

  • Receive Date: 30 August 2018
  • Revise Date: 06 April 2019
  • Accept Date: 08 May 2019
  • First Publish Date: 22 December 2019

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