Open AccessTest-Retest Reliability of Surface Electromyographic Measurements in Athletes With Anterior Cruciate Ligament Reconstruction: A Voluntary Response Index Analysis
Author(s) -
Elie Hajouj,
Mohammad Reza Hadian,
Seyed Mohsen Mir,
Saeed Talebian,
Farzin Halabchi,
Salah Ghazi
Publication year - 2020
Publication title -
journal of modern rehabilitation
Language(s) - English
Resource type - Journals
eISSN - 2538-3868
pISSN - 2538-385X
DOI - 10.32598/jmr.15.1.1
Subject(s) - electromyography , reliability (semiconductor) , physical medicine and rehabilitation , athletes , medicine , physical therapy , rehabilitation , anterior cruciate ligament reconstruction , anterior cruciate ligament , surgery , power (physics) , physics , quantum mechanics
Voluntary Response Index (VRI) is used as a measure of motor control to study abnormalities of voluntary movements. This study aimed to evaluate the reliability of voluntary response index analysis in subjects with Anterior Cruciate Ligament Reconstruction (ACLR).Materials and Methods: Using surface electromyography, the VRI components of both groups of 15 ACLR and 15 healthy controls were assessed during the functional task (sit-stand-sit). The outcome variables of VRI included the magnitude and similarity index.Results: In sit to stand phase, high reliability was found (ICC=0.80-0.89) for the magnitude and similarity index in both groups. In the standing phase, high to very high reliability was found for the magnitude and similarity index in both groups (ICC=0.75-0.91). In stand to sit phase, high to very high reliability was found (ICC=0.78-0.92) for the magnitude and similarity index in both groups.Conclusion: Surface electromyographic measurements of VRI analysis demonstrated high to very high reliability in athletes with ACLR during the functional task (sit-stand-sit). The results of the current study showed that the VRI analysis in athletes after ACLR was a reliable method and can be used to evaluate motor control before and after ligament injury in these patients.