title: Maximal respiratory pressure in healthy Japanese children.
abstract: [Purpose] Normal values for respiratory muscle pressures during development in Japanese children have not been reported. The purpose of this study was to investigate respiratory muscle pressures in Japanese children aged 3-12 years. [Subjects and Methods] We measured respiratory muscle pressure values using a manovacuometer without a nose clip, with subjects in a sitting position. Data were collected for ages 3-6 (Group I: 68 subjects), 7-9 (Group II: 86 subjects), and 10-12 (Group III: 64 subjects) years. [Results] The values for respiratory muscle pressures in children were significantly higher with age in both sexes, and were higher in boys than in girls. Correlation coefficients were significant at values of 0.279 to 0.471 for each gender relationship between maximal respiratory pressure and age, height, and weight, respectively. [Conclusion] In this study, we showed pediatric respiratory muscle pressure reference value for each age. In the present study, values for respiratory muscle pressures were lower than Brazilian studies. This suggests that differences in respiratory muscle pressures vary with ethnicity.
authors.affiliation: Department of Physical Therapy, Uekusa Gakuen University, Japan.
authors.forename: Miki
authors.initials: M
authors.lastname: Tagami
authors.affiliation: Department of Physical Therapy, Ibaraki Prefectural University of Health Sciences, Japan.
authors.forename: Yukako
authors.initials: Y
authors.lastname: Okuno
authors.affiliation: Department of Physical Therapy, Uekusa Gakuen University, Japan.
authors.forename: Tadamitsu
authors.initials: T
authors.lastname: Matsuda
authors.affiliation: Graduate School of Health Sciences, Ibaraki Prefectural University of Health Sciences, Japan.
authors.forename: Kenta
authors.initials: K
authors.lastname: Kawamura
authors.affiliation: Department of Physical Therapy, Ibaraki Prefectural University of Health Hospital, Japan.
authors.forename: Ryosuke
authors.initials: R
authors.lastname: Shoji
authors.affiliation: Department of Physical Therapy, Ibaraki Prefectural University of Health Sciences, Japan; Graduate School of Health Sciences, Ibaraki Prefectural University of Health Sciences, Japan.
authors.forename: Kazuhide
authors.initials: K
authors.lastname: Tomita
keywords: Correlated factors; Japanese children; Respiratory muscle pressures