Changes in the Activity of the Erector Spinae and Gluteus Medius Muscles with the Presence of Simulated Lower Limb Dysmetria

(1) Background: Leg length discrepancy (LLD), regardless of its origin, is a very common pathology that can contribute to low back pain. Various authors have pointed out its relationship with the lack of activation of both the gluteus medius (GM) and the ipsilateral erector spinae (ES). The purpose...

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Main Authors: María Benito de Pedro, Ana Isabel Benito de Pedro, Ángela Aguilera Rubio, Jose Luis Maté Muñoz, Juan Hernández Lougedo
Format: Article
Language:English
Published: MDPI AG 2024-02-01
Series:Sensors
Subjects:
Online Access:https://www.mdpi.com/1424-8220/24/4/1223
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author María Benito de Pedro
Ana Isabel Benito de Pedro
Ángela Aguilera Rubio
Jose Luis Maté Muñoz
Juan Hernández Lougedo
author_facet María Benito de Pedro
Ana Isabel Benito de Pedro
Ángela Aguilera Rubio
Jose Luis Maté Muñoz
Juan Hernández Lougedo
author_sort María Benito de Pedro
collection DOAJ
description (1) Background: Leg length discrepancy (LLD), regardless of its origin, is a very common pathology that can contribute to low back pain. Various authors have pointed out its relationship with the lack of activation of both the gluteus medius (GM) and the ipsilateral erector spinae (ES). The purpose of this study was to identify the activation of the ES and GM with different simulated LLDs, correlating this activation with LBP. In turn, we evaluated whether ES and GM activity has an effect on jumping ability using a CMJ test. (2) Method: A sample of healthy subjects was selected to whom an artificial LLD was applied using 0.5, 1, and 1.5 cm insoles. These three heights were measured using EMG while the subjects walked and performed a counter movement jump (CMJ). The measurements of the insole heights were carried out in random order using a Latin square. Muscle activation patterns were recorded for 30 s at each of the insole heights while the patients walked at 5.7 km/h and they were compared with the maximum voluntary contraction (MVC), both on the ipsilateral and contralateral sides. These muscles were then measured under the same circumstances during the performance of the CMJ. (3) Results: We found statistically significant differences in the flight heights in both the CMJ and DJ. In the comparison, significant differences were found in the flight heights of the CMJ and the DJ using the 5 mm insoles, and in the case of the DJ, also without insoles, with respect to the MVC. We found statistically significant differences in the activation of the GM with the differences in insoles, but not in the activation of the Es in relation to the different insole heights. (4) Conclusions: Insoles of different heights caused activation differences in the medius on the side where the insoles were placed. We can relate this difference in activation to LBP. In relation to the ES, no significant differences were found in the activation of the ipsilateral side of the insole.
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spelling doaj.art-8851760f19e34dd4b1479069c21565a82024-02-23T15:33:53ZengMDPI AGSensors1424-82202024-02-01244122310.3390/s24041223Changes in the Activity of the Erector Spinae and Gluteus Medius Muscles with the Presence of Simulated Lower Limb DysmetriaMaría Benito de Pedro0Ana Isabel Benito de Pedro1Ángela Aguilera Rubio2Jose Luis Maté Muñoz3Juan Hernández Lougedo4Department of Physiotherapy, Faculty of Health HM, Camilo José Cela University, 28692 Madrid, SpainDepartment of Physiotherapy, Faculty of Health HM, Camilo José Cela University, 28692 Madrid, SpainDepartment of Physiotherapy, Faculty of Health HM, Camilo José Cela University, 28692 Madrid, SpainDepartment of Radiology, Rehabiilitation and Physiotherapy, Complutense University of Madrid, 28040 Madrid, SpainDepartment of Physiotherapy, Faculty of Health HM, Camilo José Cela University, 28692 Madrid, Spain(1) Background: Leg length discrepancy (LLD), regardless of its origin, is a very common pathology that can contribute to low back pain. Various authors have pointed out its relationship with the lack of activation of both the gluteus medius (GM) and the ipsilateral erector spinae (ES). The purpose of this study was to identify the activation of the ES and GM with different simulated LLDs, correlating this activation with LBP. In turn, we evaluated whether ES and GM activity has an effect on jumping ability using a CMJ test. (2) Method: A sample of healthy subjects was selected to whom an artificial LLD was applied using 0.5, 1, and 1.5 cm insoles. These three heights were measured using EMG while the subjects walked and performed a counter movement jump (CMJ). The measurements of the insole heights were carried out in random order using a Latin square. Muscle activation patterns were recorded for 30 s at each of the insole heights while the patients walked at 5.7 km/h and they were compared with the maximum voluntary contraction (MVC), both on the ipsilateral and contralateral sides. These muscles were then measured under the same circumstances during the performance of the CMJ. (3) Results: We found statistically significant differences in the flight heights in both the CMJ and DJ. In the comparison, significant differences were found in the flight heights of the CMJ and the DJ using the 5 mm insoles, and in the case of the DJ, also without insoles, with respect to the MVC. We found statistically significant differences in the activation of the GM with the differences in insoles, but not in the activation of the Es in relation to the different insole heights. (4) Conclusions: Insoles of different heights caused activation differences in the medius on the side where the insoles were placed. We can relate this difference in activation to LBP. In relation to the ES, no significant differences were found in the activation of the ipsilateral side of the insole.https://www.mdpi.com/1424-8220/24/4/1223leg length discrepancylow back paingluteus mediuserector spinaeCMJelectromyography
spellingShingle María Benito de Pedro
Ana Isabel Benito de Pedro
Ángela Aguilera Rubio
Jose Luis Maté Muñoz
Juan Hernández Lougedo
Changes in the Activity of the Erector Spinae and Gluteus Medius Muscles with the Presence of Simulated Lower Limb Dysmetria
Sensors
leg length discrepancy
low back pain
gluteus medius
erector spinae
CMJ
electromyography
title Changes in the Activity of the Erector Spinae and Gluteus Medius Muscles with the Presence of Simulated Lower Limb Dysmetria
title_full Changes in the Activity of the Erector Spinae and Gluteus Medius Muscles with the Presence of Simulated Lower Limb Dysmetria
title_fullStr Changes in the Activity of the Erector Spinae and Gluteus Medius Muscles with the Presence of Simulated Lower Limb Dysmetria
title_full_unstemmed Changes in the Activity of the Erector Spinae and Gluteus Medius Muscles with the Presence of Simulated Lower Limb Dysmetria
title_short Changes in the Activity of the Erector Spinae and Gluteus Medius Muscles with the Presence of Simulated Lower Limb Dysmetria
title_sort changes in the activity of the erector spinae and gluteus medius muscles with the presence of simulated lower limb dysmetria
topic leg length discrepancy
low back pain
gluteus medius
erector spinae
CMJ
electromyography
url https://www.mdpi.com/1424-8220/24/4/1223
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