Changes of Respiratory Ability According to Respiratory Muscle Exercises for Smokers and Non-smokers in Their Twenties

20대 흡연자와 비흡연자의 호흡근 강화 운동에 따른 호흡능력의 변화

  • 이삼철 (한려대학교 물리치료학과) ;
  • 정철현 (한려대학교 물리치료학과) ;
  • 이은숙 (한려대학교 물리치료학과) ;
  • 이해호 (한려대학교 물리치료학과) ;
  • 정영환 (한려대학교 물리치료학과) ;
  • 채혜진 (한려대학교 물리치료학과) ;
  • 최정아 (한려대학교 물리치료학과) ;
  • 이현철 (한려대학교 사회체육학과) ;
  • 오상부 (한려대학교 물리치료학과) ;
  • 손경현 (한려대학교 물리치료학과)
  • Received : 2011.08.26
  • Accepted : 2011.09.28
  • Published : 2011.09.30

Abstract

Background : Smoking reduces the ability of the lungs to function. In particular, smoking reduces the vital capacity of the lungs, which is the amount of air the lungs can take in. This reduction in vital capacity has several important health effects. Purpose : The purpose of this study, therefore was to examine the effects of the respiratory muscle exercise on peak expiratory flow and respiratory muscle strength. Methods : For an experimental research design, it was employed 20 young healthy subjects and these subjects were assigned into two groups; a smoking group(n=10) and an non-smoking group(n=10). All groups were participated in respiratory muscle exercises twice a week for 5 weeks in same condition. For comparison between before and after for post treatment, it was analysed as paired t-test and ANCOVA. Results : The result of this study were as follows; In the case of smoking group, there were significant differences, from $427.77{\pm}76.61$ l/min to $526.66{\pm}58.52$ l/min of peak respiratory flow, from $94.33{\pm}22.07$ kg to $102.16{\pm}21.60$ kg of abdominal muscle strength between the before and the after of respiratory muscle strength exercises. In the case of nonsmoking group, there were significant differences, from $449.54{\pm}77.47$ l/min to $553.18{\pm}61.32$ l/min of peak respiratory flow, from $93.41{\pm}19.21$ kg to $101.58{\pm}18.92$ kg of abdominal muscle strength between the before and the after of respiratory muscle strength exercises. Conclusion : These results were suggested that the peak respiratory flow and muscle strength were improved after respiratory muscle strength exercises.

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