International Journal of Safety

The Korean Society of Safety (한국안전학회)
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Biomechanical Analysis with the Force of Deltoid Muscle for Pianist

  • Shin, Dong-Ok (Department of Industrial Engineering, University of Central Florida) ;
  • La, Seung-Houn (Department of Industrial & Systems Engineering, Myong ji College)
  • Published : 2005.06.30
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Abstract

This study presents the relationship between the height of the chair and the force of deltoid muscle for pianist. The subject simulated playing the piano on the three different heights of the chairs. Digital camera was used to determine the angle of the joint of shoulder and elbow for 2-dimensional static link segment modeling in the sagittal plane. The deltoid, biceps and triceps muscles were considered to determine the muscle load. The results, compared to the force of deltoid muscle, are that the downward position of the higher chair produces significantly large force than the other two lower chairs. It can be caused by hunched shoulder with decreasing deltoid angle. In case of the upward position caused by the lower chair, even though the smallest force of deltoid presented, it was increased the force of elbow.

Keywords

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