title: Analysis of the pulmonary functions of normal adults according to pillow height.
abstract: [Purpose] The purpose of this study is to examine changes in pulmonary functions in relation to the sleeping positions of the experimental subjects. [Subjects and Methods] The subjects for this study were twenty randomly selected males and females from K University. Measurements were taken in the supine position at three different pillow heights: 0 cm, 5 cm, and 10 cm. Pulmonary functions (vital capacity, tidal volume, inspiratory reserve volume, and expiratory reserve volume) were evaluated using a Fit mate. [Results] These findings suggest that a pillow height of 5 cm makes a significant difference in vital capacity (VC). When the three pillow heights were compared, significant differences were seen between 0 cm and 5 cm, and between 5 cm and 10 cm, in terms of vital capacity for the pulmonary functions among the three positions. [Conclusion] In conclusion, changing the positions of the subjects produces changes in pulmonary functions. The greatest change occurred in the 5 cm pillow height. Presumably, ventilation is affected by the body structures. The results will provide objective data to establish the most suitable positions for stroke patients when they perform respiratory exercises.
authors.affiliation: Department of Physical Therapy, Korea Nazarene University, Republic of Korea.
authors.forename: KyoChul
authors.initials: K
authors.lastname: Seo
authors.affiliation: Department of Physical Therapy, Korea Nazarene University, Republic of Korea.
authors.forename: MiSuk
authors.initials: M
authors.lastname: Cho
keywords: Height; Pillow; Pulmonary function