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Maximal respiratory pressure in healthy Japanese children
Miki Tagami1, Yukako Okuno2, Tadamitsu Matsuda1
1Department of Physical Therapy, Uekusa Gakuen University, Japan.
Insights
This study establishes normal respiratory muscle pressure values for Japanese children aged 3-12. Findings indicate pressures increase with age and are higher in boys, suggesting ethnic variations in respiratory function.
Area of Science:
- Pediatric Physiology
- Respiratory Medicine
Background:
- Normal respiratory muscle pressure values in Japanese children are currently unreported.
- Understanding developmental changes in respiratory muscle strength is crucial for pediatric health assessments.
Purpose of the Study:
- To establish normative reference values for respiratory muscle pressures in Japanese children aged 3 to 12 years.
- To investigate the influence of age and sex on respiratory muscle pressures during childhood development.
Main Methods:
- Respiratory muscle pressures were measured using a manovacuometer in 218 Japanese children (ages 3-12).
- Participants were divided into three age groups: 3-6, 7-9, and 10-12 years.
- Measurements were taken with subjects in a sitting position without a nose clip.
Main Results:
- Respiratory muscle pressures significantly increased with age in both boys and girls.
- Boys exhibited higher respiratory muscle pressures compared to girls across all age groups.
- Positive correlations were observed between maximal respiratory pressure and age, height, and weight.
Conclusions:
- This study provides age-specific pediatric respiratory muscle pressure reference values for Japanese children.
- Observed lower values compared to Brazilian studies suggest potential ethnic variations in respiratory muscle pressures.
- These findings contribute to a better understanding of respiratory development and ethnic differences in pediatric populations.
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.