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Activation of upper limb muscles in subjects with scapular dyskinesis during bench-press and dumbbell fly on stable and unstable surfaces.

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  • معلومة اضافية
    • المصدر:
      Publisher: Ios Press Country of Publication: Netherlands NLM ID: 9201340 Publication Model: Print Cited Medium: Internet ISSN: 1878-6324 (Electronic) Linking ISSN: 10538127 NLM ISO Abbreviation: J Back Musculoskelet Rehabil Subsets: MEDLINE
    • بيانات النشر:
      Publication: 1999- : Amsterdam : Ios Press
      Original Publication: Reading, MA : Andover, c1991-
    • الموضوع:
      Scapula*/physiology ; Superficial Back Muscles*/physiology; Humans ; Electromyography ; Muscle, Skeletal/physiology ; Exercise Therapy ; Shoulder/physiology
    • نبذة مختصرة :
      Background: Scapular dyskinesis has been associated with shoulder dysfunctions, and changes in electromyographic (EMG) activity have been reported during the execution of some exercises.
      Objective: To compare upper limb muscles EMG of asymptomatic subjects with and without scapular dyskinesis during bench-press and dumbbell fly exercise performed on different surface stability conditions.
      Methods: Twenty-eight physically active men were allocated into two groups: Control group (n= 14) and Dyskinesis group (n= 14). The participants performed six repetitions lasting three seconds of the bench press and dumbbell fly exercises with 50% of one-repetition maximum (1RM) on a bench and a Swiss ball. The EMG activity of the pectoralis major, serratus anterior, upper and lower trapezius, anterior deltoid, biceps and triceps muscles were recorded.
      Results: No differences were found between groups, regardless of exercise or surface type. Inserting the unstable surface in the supine exercise promoted a slight increase in upper trapezius EMG activity for the control [4.32 (95% CI: 1.04 to 7.60)] and dyskinesis [3.30 (95% CI: 0.34 to 6.27)] groups.
      Conclusions: There is no difference in upper limb muscle EMG activity between subjects with and without scapular dyskinesis. In addition, inserting unstable surfaces did not modify EMG activity.
    • Contributed Indexing:
      Keywords: Electromyography; exercise therapy; scapula; shoulder
    • الموضوع:
      Date Created: 20220523 Date Completed: 20221115 Latest Revision: 20221115
    • الموضوع:
      20231215
    • الرقم المعرف:
      10.3233/BMR-210243
    • الرقم المعرف:
      35599468