The Journal of Korean Physical Therapy

The Korean Society of Physical Therapy (대한물리치료학회)
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The Effect of Seat Surface Inclination on Respiratory Function and Speech Production in sitting

앉은 자세에서 의자 표면 경사도가 호흡기능과 구어 산출에 미치는 영향

  • Shin, Hwa-Kyung (Department of Physical Therapy, College of Medical Science, Catholic University of Daegu) ;
  • Kim, Hye-Su (Department of Physical Therapy, College of Medical Science, Catholic University of Daegu) ;
  • Lee, Ok-Bun (Department of Speech and Language Pathology, Daegu Cyber University)
  • 신화경 (대구가톨릭대학교 의료과학대학 물리치료학과) ;
  • 김혜수 (대구가톨릭대학교 의료과학대학 물리치료학과) ;
  • 이옥분 (대구사이버대학교 언어치료학과)
  • Received : 2011.09.20
  • Accepted : 2012.01.24
  • Published : 2012.02.25
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Abstract

Purpose: The purpose of this study was to evaluate the difference between respiratory function and speech production, according to the seat surface inclination while in the sitting position. Methods: Respiratory function (FVC, FEV1) and speech production (inspiratory frequency, unit reading time, paragraph reading time) were measured in 3 sitting conditions: horizontal seat surface, seat surface tilted forward 15 degrees, and seat surface tilted backward 15 degrees. Results: We found that the mean values of FVC and FEV1 were statistically significant different according to three types of sitting positions (p<0.05). The following result was observed: forward tilted sitting > horizontal sitting > backward tilted sitting. There was no significant difference in speech production between the different positions. Respiratory function and speech production had a significantly negative correlation in the forward tilted condition and the backward tilted condition. Conclusion: This finding suggests that the seat surface inclination have an effect on respiratory function. Especially, forward tilted sitting may be an effective posture that may help increases the respiratory function.

Keywords

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