Journal of the Korean Society of Physical Medicine (대한물리의학회지)

The Korean Society of Physical Medicine (대한물리의학회)
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Difference of Trunk Muscles Activity during Hollowing vs Bracing Contraction in Various Position

다양한 자세에 따른 복부 할로잉과 브레이싱 수축시 체간근 활성도의 차이

  • Moon, Hyun-Ju (Department of Physical Therapy, Busan Catholic University) ;
  • Cho, Sung-Hak (Department of Physical Therapy, Busan Catholic University) ;
  • Goo, Bong-Oh (Department of Physical Therapy, Busan Catholic University)
  • 문현주 (부산가톨릭대학교 물리치료학과) ;
  • 조성학 (부산가톨릭대학교 물리치료학과) ;
  • 구봉오 (부산가톨릭대학교 물리치료학과)
  • Received : 2012.08.30
  • Accepted : 2012.11.06
  • Published : 2013.02.28
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Abstract

PURPOSE: The purpose of this study was to investigate the difference of trunk muscles activity during abdominal hollowing and bracing contraction in various position. METHODS: This pilot test was carried out in a volunteer sample of normal adults(n=24) without a history of low back pain or injury. 24 subjects were randomly allocated to three groups(n=8) as a contraction method respectively. In hooklying position, trunk muscles activity of subjects was measured using EMG in various bridging position. RESULTS: Abdominal bracing contraction made to more great trunk deep and superficial muscles activity than hollowing contraction.(p<0.00) Especially, Multifidus activity was the biggest.(p<0.00) CONCLUSION: The result from this study showed that abdominal bracing contraction made to more balancing activity of trunk muscles than abdominal hollowing contraction. Thus, It will good for trunk muscles unbalanced LBP patient to improve lumbar stabilization.

Keywords

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