健常人における胸郭運動抑制の影響

概要

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Purpose : Post-operative patients have limited thoracic cage movement due to pain. The purpose of this study was to investigate the effects of limited thoracic cage movement on normal subjects. Methods: Six normal subjects were studied. The age of the subjects was from 40-58 years old. We made a corset for each subject, to restrict thoracic cage movement. The corset was made up of plates. When warm (60℃) the plates were very soft and flexible, when cold, inflexible, We measured subjects vital capacity (VC) with a spirometer. And we measured oxygen uptake (VO₂) and ventilation (VE) using gas exchange analysis (K2, KOSMED). We compared their values with and without the corset. Results : There were significant difference in VC and the percentage of VC (%VC) between men with the corset and without the corset. The VC was 20% greater for men without the corset as compared to men with the corset. Respiratory frequency (Rf) and VE were increased in men without the corset, but there were no statistically significant differences with and without the corset (P<0.05). Conclusion : The results indicated that men with the corset had higher energy requirements for respiration than men without the corset.
信州大学の論文