Deep abdominal muscle activity following supratentorial stroke.

J. F. Marsden*, A. Hough, G. Shum, S. Shaw, J. A. Freeman

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

This study assessed the level and symmetry of deep abdominal muscle activation following a supratentorial stroke during a modified hip flexion task. Movement-related activation levels in the transversus abdominus (TrA) and internal oblique (IO) were investigated in people with a subacute (<3.25months) supratentorial stroke (n=11) and a matched control group (n=11). Electromyographic activity in TrA and IO were recorded using fine wires inserted under ultrasound guidance while participants performed a standardised head lift or unilateral hip flexion. During head lift there was no significant difference in the amplitude of activation ipsi- and contra-lateral to the stroke or between groups. During unilateral hip flexion the TrA and IO were activated more on both sides when moving the paretic leg. In the control group muscle activity was modulated by task with activity being higher ipsilateral to the moving leg; in contrast in the stroke group IO muscle activity tended to be higher on the non-paretic side irrespective of moving limb. Greater TrA and IO muscle activity during hip flexion of the paretic leg may represent compensatory activity that acts to facilitate activation of the paretic hip flexors and/or the presence of overflow.
Original languageEnglish
Pages (from-to)985-990
Number of pages0
JournalJ Electromyogr Kinesiol
Volume23
Issue number4
DOIs
Publication statusPublished - Aug 2013

Keywords

  • Abdominal Muscles
  • Aged
  • 80 and over
  • Female
  • Hip Joint
  • Humans
  • Male
  • Middle Aged
  • Movement
  • Muscle Contraction
  • Range of Motion
  • Articular
  • Reproducibility of Results
  • Sensitivity and Specificity
  • Stroke

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