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The Study of Asymmetrical Contraction of the Lateral Abdominal Muscles in Stroke Patients Using Ultrasound Imaging

초음파 영상을 통한 뇌졸중 환자의 외측복부근 근수축의 비대칭성 연구

  • Park, Hyun-Ju (Department of Physical Therapy, The Graduate School of Daejeon University) ;
  • Oh, Duck-Won (Department of Physical Therapy, Chongju University) ;
  • Shin, Won-Seob (Department of Physical Therapy, Daejeon University)
  • 박현주 (대전대학교 일반대학원 물리치료학과) ;
  • 오덕원 (청주대학교 물리치료학과) ;
  • 신원섭 (대전대학교 물리치료학과)
  • Received : 2012.08.02
  • Accepted : 2012.08.16
  • Published : 2012.08.31

Abstract

Purpose : This study aimed to identify the asymmetry observed in the rehabilitative ultrasound imaging of lateral abdominal muscle thickness and performance between the affected and unaffected side during the abdominal drawing-in maneuver (ADIM), an exercise used to facilitate activation of selectively TrA to stabilize the trunk prior to limb movement. Methods : The Participants were twenty one patients with post-stroke hemiplegia in this study. Ultrasound imaging was used to measure amount of changes in thickness of the external oblique (EO), internal oblique (IO), transversus abdominis (TrA). A Paired t-test was used to compare relaxed muscle thickness to contracted muscle thickness of all 3 muscles between the affected and unaffected sides. Results : The outcome measures included side to side differences of absolute thickness, contraction ratio among the lateral abdominal muscles. There was no significantly difference in between the affected and unaffected side at rest. But, there was a significantly difference in absolute muscle thickness between the affected and unaffected side of only TrA muscle. Also contraction ratio was a significantly difference between the affected and unaffected TrA muscle. Conclusion : These findings support the asymmetrical activation of TrA muscle during abdominal muscle contraction in patients with post-stroke hemiplegia. Further studies are warranted for confirming this outcome.

Keywords

References

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