title: Effects of posture on chest-wall configuration and motion during tidal breathing in normal men.
abstract: [Purpose] The purpose of this study was to clarify the impact of postural changes during tidal breathing on the configuration and motion of chest-wall in order to further breathing motion evaluation. [Subjects and Methods] Chest-wall configuration and motion in the supine, right lateral, and sitting positions were measured using optoelectronic plethysmography in 15 healthy adult men. [Results] The anteroposterior diameters of the chest wall were significantly lower in the supine position for the pulmonary and abdominal rib cages, whereas the mediolateral diameters in the lateral position were lowest for the abdominal rib cage. Regarding chest-wall motion, both craniocaudal and anteroposterior motions of the anterior surface of the pulmonary and abdominal rib cages were significantly greater in the sitting position. Regarding motion of the left lateral abdominal rib cage, lateral motion was greatest in the lateral position. [Conclusion] Chest-wall configuration and motion changed according to posture in healthy men, particularly in the pulmonary and abdominal rib cages.
authors.affiliation: Department of Physical Therapy, Faculty of Nursing and Rehabilitation, Konan Women's University, Japan.
authors.forename: Sachie
authors.initials: S
authors.lastname: Takashima
authors.affiliation: Department of Physical Therapy, Faculty of Nursing and Rehabilitation, Konan Women's University, Japan.
authors.forename: Masafumi
authors.initials: M
authors.lastname: Nozoe
authors.affiliation: Department of Physical Therapy, Faculty of Nursing and Rehabilitation, Konan Women's University, Japan.
authors.forename: Kyoshi
authors.initials: K
authors.lastname: Mase
authors.affiliation: Department of Rehabilitation, Takarazuka City Hospital, Japan.
authors.forename: Yusuke
authors.initials: Y
authors.lastname: Kouyama
authors.affiliation: Department of Rehabilitation, Hyogo College of Medicine Sasayama Medical Center, Japan.
authors.forename: Kazuhiro
authors.initials: K
authors.lastname: Matsushita
authors.affiliation: Department of Rehabilitation Science, Kobe University Graduate School of Health Sciences, Japan.
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Ando
keywords: Chest-wall configuration; Chest-wall motion; Posture