Posterior muscle chain activity between with lower back pain and free-of-pain competetive male football players: EMG study
| Date |
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2017-12-08 |
ISBN: 978-9955-15-518-8.
Tezių knygoje pateiktos tezės buvo recenzuotos vieno mokslinio recenzento. Individualios tezės išlieka jų pateikėjų intelektualine nuosavybe. Tezių autoriai atsako už tezių kalbos taisyklingumą ir stilių.
Bibliogr.: p. 20
Introduction. In football low back pain is usually a result from disbalances between muscles surrounding lower spine and lower extremity muscles, according to FIFA research [1]. Even now most of the studies are done on children or adolescence football players [2]. Because low back pain is a concern to both young and older football player, it gets especially important to study and understand what dysfunctional movement patterns in posterior muscle chain can be caused by low back pain to better understand how to treat it [1;2;3]. Aim of study – to analyze and to compare posterior muscle chain activity between with lower back pain and free-of-pain male football players. Research methods and organization. The study was performed in Lithuanian University of Health and Science, sport institute. Fifteen professional male soccer players (body mass index, 23.8 ± 1.5), from first and second Lithuanian football leagues whose ages ranged from 19 to 38 (26 ± 5.3) participated in this study. Eight of the players were free-of-pain free, while 7 others participants stated that they regularly feel mild lower back pain. All participants were right leg dominant and none of them had acute posterior muscle chain injury in past 3 months. Study was approved by the Bioethics Center of the Lithuanian University of Health Sciences. In the study electrodes were placed on 3 muscle groups symmetrically (total 6 placements). Surface electromyography data was collected from erector spinae, Gluteus maximus, Biceps Femoris. Data was collected by Noraxon electromyography „MyoTrace 400“, data was stored in Noraxon software „MR3 3.6:20“ [4]. For data normalization maximum voluntary isometric contraction (MVIC) was performed, all data from free form squats (data was registered from lowering phase and lifting phase), left and right leg kicks were recorded as a maximum voluntary contraction (MVC) and converted into percentages of MVIC. [...].