Physical Therapy Korea (한국전문물리치료학회지)

Korean Research Society of Physical Therapy (한국전문물리치료학회)
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Comparison of Lumbar Joint Reposition Error When Sitting in Upright and Slouched Positions for Five Minutes

5분 동안 바로 앉은 자세와 구부린 앉은 자세 시 허리 관절재위치 오류의 비교

  • Ji, Myung-Ki (Dept. of Rehabilitation Medicine, Seoul National University Bundang Hospital) ;
  • Choung, Sung-Dae (Dept. of Physical Therapy, The Graduate School, Yonsei University) ;
  • Park, Kyue-Nam (Dept. of Physical Therapy, College of Health Science, Yonsei University, Dept. of Ergonomic Therapy, The Graduate School of Health and Environment, Yonsei University) ;
  • Kwon, Oh-Yun (Dept. of Physical Therapy, College of Health Science, Yonsei University, Dept. of Ergonomic Therapy, The Graduate School of Health and Environment, Yonsei University)
  • 지명기 (분당서울대학교병원 재활의학과) ;
  • 정성대 (연세대학교 대학원 물리치료학과) ;
  • 박규남 (연세대학교 보건과학대학 물리치료학과, 보건환경대학원 인간공학치료학과) ;
  • 권오윤 (연세대학교 보건과학대학 물리치료학과, 보건환경대학원 인간공학치료학과)
  • Received : 2013.03.03
  • Accepted : 2013.04.16
  • Published : 2013.05.21
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Abstract

The purpose of this study was to compare the slouched and upright sitting positions on lumbar joint reposition error (LJRE). Twenty subjects without low back pain were recruited for this study and, using a random number table, were randomly assigned to two groups; the upright sitting position group (UP group) and the slouched sitting position group (SP group). UP group was first asked to sit in an upright position and the SP group to sit in a slouched position as an intervention, and then the LJRE of both groups was measured at the neutral sitting position (lumbar flexion $0^{\circ}$). The measurement of the LJRE was repeated after one day. The sitting positions were performed for five minutes each and the LJRE was measured using an electronic goniometer. An independent t-test was used to compare the LJRE of both groups after each sitting position and after one day. The results of this study showed that the LJRE after an intervention in the UP group was lower than in the SP group (p<.05) and the LJRE after one day in the UP group was lower than in the SP group (p<.05). The findings of this study indicate that the upright sitting position can be applied to decrease LJRE, compared with the slouched sitting position. These findings also support that the upright sitting position reduces the potential for proprioceptive loss.

Keywords

References

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