Korean Journal of Applied Biomechanics (한국운동역학회지)

Korean Society of Applied Biomechanics (한국운동역학회)
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The Effect of Thoracic Posture on The Shoulder Range of Motion and on Three-Dimensional Scapular Kinematics

흉추 자세가 견관절 가동범위와 3차원적 견갑골 운동학에 미치는 영향

  • Park, Seung-Kyu (Department of Physical Therapy, College of Health, Daebul University) ;
  • Han, Song-E (Department of Physical Therapy, Graduate School of Daebul University)
  • 박승규 (대불대학교 보건대학 물리치료학과) ;
  • 한송이 (대불대학교 대학원 물리치료학과)
  • Received : 2010.04.28
  • Accepted : 2010.06.21
  • Published : 2010.06.30
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Abstract

Scapular position and motion are essential for normal upper limb mobility; Further, the posture of patients with thoracic kyphosis is related to shoulder girdle function and disorder. The purpose of this study was to examine the effects of thoracic posture on the shoulder range of motion and on three-dimensional scapular kinematics. Thirty healthy subjects performed right-arm abduction along the frontal plane while standing in both erect and in slouched trunk posture. The scapular position and rotation, and shoulder and thoracic angles were recorded using a motion analysis system. The scapular upward rotation and internal rotation were significantly altered according to postural tatiges; however, scapular tilt was not affected. Shoulder angle was significantly decreased in the slouched posture as c rpared to tatt in the erect posture. Thus, a slouched posture(thoracic kyphosis) significantly affects the shoulder range of motion and scapular kinematics during shoulder abduction in the frontal plane.

Keywords

References

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