Effect of knee brace and lateral wedge on muscular activity amplitude during running in male soccer players with genu varus
Background and Objective: Genu varus is a deformity in frontal plane that in weight bearing position whiles the medial malleolus’s touch each other, the medial knee epicondyles far from each other. Genu varus is very prevalent in soccer players. This study was done to evaluate the effect of using kn...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | fas |
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Golestan University of Medical Sciences
2021-07-01
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| Series: | مجله دانشگاه علوم پزشکی گرگان |
| Subjects: | |
| Online Access: | http://goums.ac.ir/journal/article-1-3783-en.html |
| _version_ | 1818332369524883456 |
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| author | Amin Naghdizadeh Amir Ali Jafarnezhadgero Marefat Siahkohian Saeed Noorinasab Mitra Zivarikabir |
| author_facet | Amin Naghdizadeh Amir Ali Jafarnezhadgero Marefat Siahkohian Saeed Noorinasab Mitra Zivarikabir |
| author_sort | Amin Naghdizadeh |
| collection | DOAJ |
| description | Background and Objective: Genu varus is a deformity in frontal plane that in weight bearing position whiles the medial malleolus’s touch each other, the medial knee epicondyles far from each other. Genu varus is very prevalent in soccer players. This study was done to evaluate the effect of using knee brace and lateral wedge on muscular activity amplitude in male soccer players with genu varus during running.
Methods: This quasi-experimental study was done on 15 right-footed male soccer players with genu varus and 15 healthy soccer players. A wireless electromyography system with eight pairs of bipolar Ag/AgCl surface electrodes (20 mm center-to-center distance; input impedance of 100 MΩ; and common-mode rejection ratio of >110 dB) was used to record the activity of the tibialis anterior, gastrocnemius medialis, biceps femoris, semitendinosus, vastus lateralis, vastus medialis, and rectus femoris, and gluteus medius muscles of the right leg. Electromyography data were recorded by sampling rate of 1000 Hz in selected muscles during running at five conditions including: control, 10 degrees lateral wedge, 15 degrees lateral wedge, simultaneous using 30 degrees brace and 10 degrees lateral wedge, and simultaneous using 30 degree brace and 15 degrees lateral wedge.
Results: Treatment intervention had reduction effect on muscular amplitude of biceps femoris and vastus lateralis during push-off phase (P<0.05). Muscular amplitude of biceps femoris and vastus lateralis during loading phase was reduced due to Treatment intervention (P<0.05).
Conclusion: Simultaneous using of lateral wedge and knee brace reduce the electromyography activity of vastus lateralis and biceps femoris muscles. This reduction may be associated with passive support of knee brace that in result could decrease the external knee adductor mowment. |
| first_indexed | 2024-12-13T13:34:39Z |
| format | Article |
| id | doaj.art-7ef1d0a5e2f6482b91102c51271a7f93 |
| institution | Directory Open Access Journal |
| issn | 1562-4765 2008-4080 |
| language | fas |
| last_indexed | 2024-12-13T13:34:39Z |
| publishDate | 2021-07-01 |
| publisher | Golestan University of Medical Sciences |
| record_format | Article |
| series | مجله دانشگاه علوم پزشکی گرگان |
| spelling | doaj.art-7ef1d0a5e2f6482b91102c51271a7f932022-12-21T23:43:58ZfasGolestan University of Medical Sciencesمجله دانشگاه علوم پزشکی گرگان1562-47652008-40802021-07-012323339Effect of knee brace and lateral wedge on muscular activity amplitude during running in male soccer players with genu varusAmin Naghdizadeh0Amir Ali Jafarnezhadgero1Marefat Siahkohian2Saeed Noorinasab3Mitra Zivarikabir4 M.A Student in Sport Physiology, Department of Sport Physiology, Faculty of Psychology and Education, University of Mohaghegh Ardabili, Ardabil, Iran. Associate Professor, Department of Sport Managements and Biomechanics, Faculty of Educational Sciences and Psychology, University of Mohaghegh Ardabili, Ardabil, Iran. Professor, Department of Sport Physiology, Faculty of Psychology and Education, University of Mohaghegh Ardabili, Ardabil, Iran. M.A Student in Sport Physiology, Department of Sport Physiology, Faculty of Psychology and Education, University of Mohaghegh Ardabili, Ardabil, Iran. M.A Student in Sport Biomechanics, Department of Sport Managements and Biomechanics, Faculty of Psychology and Education, University of Mohaghegh Ardabili, Ardabil, Iran. Background and Objective: Genu varus is a deformity in frontal plane that in weight bearing position whiles the medial malleolus’s touch each other, the medial knee epicondyles far from each other. Genu varus is very prevalent in soccer players. This study was done to evaluate the effect of using knee brace and lateral wedge on muscular activity amplitude in male soccer players with genu varus during running. Methods: This quasi-experimental study was done on 15 right-footed male soccer players with genu varus and 15 healthy soccer players. A wireless electromyography system with eight pairs of bipolar Ag/AgCl surface electrodes (20 mm center-to-center distance; input impedance of 100 MΩ; and common-mode rejection ratio of >110 dB) was used to record the activity of the tibialis anterior, gastrocnemius medialis, biceps femoris, semitendinosus, vastus lateralis, vastus medialis, and rectus femoris, and gluteus medius muscles of the right leg. Electromyography data were recorded by sampling rate of 1000 Hz in selected muscles during running at five conditions including: control, 10 degrees lateral wedge, 15 degrees lateral wedge, simultaneous using 30 degrees brace and 10 degrees lateral wedge, and simultaneous using 30 degree brace and 15 degrees lateral wedge. Results: Treatment intervention had reduction effect on muscular amplitude of biceps femoris and vastus lateralis during push-off phase (P<0.05). Muscular amplitude of biceps femoris and vastus lateralis during loading phase was reduced due to Treatment intervention (P<0.05). Conclusion: Simultaneous using of lateral wedge and knee brace reduce the electromyography activity of vastus lateralis and biceps femoris muscles. This reduction may be associated with passive support of knee brace that in result could decrease the external knee adductor mowment.http://goums.ac.ir/journal/article-1-3783-en.htmlelectromyographygenu varumbrace |
| spellingShingle | Amin Naghdizadeh Amir Ali Jafarnezhadgero Marefat Siahkohian Saeed Noorinasab Mitra Zivarikabir Effect of knee brace and lateral wedge on muscular activity amplitude during running in male soccer players with genu varus مجله دانشگاه علوم پزشکی گرگان electromyography genu varum brace |
| title | Effect of knee brace and lateral wedge on muscular activity amplitude during running in male soccer players with genu varus |
| title_full | Effect of knee brace and lateral wedge on muscular activity amplitude during running in male soccer players with genu varus |
| title_fullStr | Effect of knee brace and lateral wedge on muscular activity amplitude during running in male soccer players with genu varus |
| title_full_unstemmed | Effect of knee brace and lateral wedge on muscular activity amplitude during running in male soccer players with genu varus |
| title_short | Effect of knee brace and lateral wedge on muscular activity amplitude during running in male soccer players with genu varus |
| title_sort | effect of knee brace and lateral wedge on muscular activity amplitude during running in male soccer players with genu varus |
| topic | electromyography genu varum brace |
| url | http://goums.ac.ir/journal/article-1-3783-en.html |
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