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106 Effect of a single short electrostimulation session of the fibularis muscles on dynamic postural stability and evertor muscles strength

BackgroundThe fibularis muscles are key elements of the ankle evertor group (evertors). The weakness of evertors is one of the main cause of ankle sprains. Electrostimulation training can increase the maximum voluntary force of contraction by neural adaptation to a healthy skeletal muscle.ObjectiveT...

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Bibliographic Details
Published in:British journal of sports medicine 2021-11, Vol.55 (Suppl 1), p.A43-A43
Main Authors: Fourchet, François, Ganchine, Artiom, Seurot, Antoine, Coroller, Nicolas Le, Servant, Guillaume, Gojanovic, Boris
Format: Article
Language:English
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Summary:BackgroundThe fibularis muscles are key elements of the ankle evertor group (evertors). The weakness of evertors is one of the main cause of ankle sprains. Electrostimulation training can increase the maximum voluntary force of contraction by neural adaptation to a healthy skeletal muscle.ObjectiveTo assess whether a single electrostimulation session of the fibularis muscles could impact dynamic postural stability and evertor strength.DesignSingle-blind randomised controlled trial.SettingMotion analysis laboratory in a hospital facility.Patients (or Participants)Sixteen healthy male and female volunteers, randomly assigned to an experimental (EXP, n=8) or control (Control, n=8) group.Interventions (or Assessment of Risk Factors)Participants in EXP received a single electrostimulation strengthening session for 3 minutes on the dominant side (DOM) fibularis muscles. Control participants received a sham electrostimulation on DOM with similar modalities.Main Outcome MeasurementsDynamic postural balance was assessed on DOM and non-dominant (NDOM) limbs using the modified Star Excursion Balance Test (SEBT). A composite score (CS in%) was calculated. Evertor strength (in N) was assessed with three maximal isometric voluntary contractions on an isokinetic dynamometer.ResultsEXP displayed a significant increase in SEBT-CS on DOM (97.7±5.9% vs 96.1±7.4%, p
ISSN:0306-3674
1473-0480
DOI:10.1136/bjsports-2021-IOC.99