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Vol. 77, No. 1, 2009
Issue release date: January 2009
Section title: Clinical Investigations
Respiration 2009;77:58–62
(DOI:10.1159/000167321)

Sniff Nasal Inspiratory Pressure in Healthy Japanese Subjects: Mean Values and Lower Limits of Normal

Kamide N. · Ogino M. · Yamashina N. · Fukuda M.
aFaculty of Rehabilitation, School of Allied Health Sciences, and bDepartment of Neurology, School of Medicine, Kitasato University, Sagamihara, Japan

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Article / Publication Details

First-Page Preview
Abstract of Clinical Investigations

Received: 3/20/2008
Accepted: 8/18/2008
Published online: 10/28/2008

Number of Print Pages: 5
Number of Figures: 2
Number of Tables: 3

ISSN: 0025-7931 (Print)
eISSN: 1423-0356 (Online)

For additional information: http://www.karger.com/RES

Abstract

Background: When assessing respiratory muscle strength using sniff nasal inspiratory pressure (SNIP), it is important to consider ethnic differences. Therefore, it is necessary to determine the mean values and lower limits of normal for SNIP in the Japanese population. Objective: To determine the mean values and lower limits of normal for SNIP, which is used as an assessment of inspiratory muscle strength, in healthy Japanese subjects. Methods: A total of 223 healthy Japanese volunteers (112 men, 111 women), aged 18–69 years, were studied; none had a history of pulmonary disease, heart disease, neuromuscular disease or sinusitis. To measure SNIP, a nasal plug was inserted into one nostril and the mouth was kept closed. Each subject was asked to take short, sharp sniffs with maximal effort from functional residual volume. Results: Based on the intraclass correlation coefficient, SNIP measurements showed good reproducibility in both men and women. The mean SNIP values were 76.8 ± 28.9 cm H2O in men and 60.0 ± 20.0 cm H2O in women; the values were significantly higher in men than in women (p < 0.01). On stepwise multiple linear regression analysis, the SNIP values were negatively related to age in men and positively related to body mass index (BMI) in women. The lower limits of normal for SNIP were 32.9 cm H2O in men and 28.8 cm H2O in women. Conclusions: In healthy Japanese subjects, the mean SNIP value was higher in men than in women. In Japanese subjects, SNIP values appear to be related to age in men and BMI in women.


  

Author Contacts

Naoto Kamide
Faculty of Rehabilitation, School of Allied Health Sciences
Kitasato University
1-15-1 Kitasato, Sagamihara, Kanagawa 228-8555 (Japan)
Tel. +81 42 778 9693, Fax +81 42 778 9686, E-Mail naokami@kitasato-u.ac.jp

  

Article Information

Received: March 20, 2008
Accepted after revision: August 18, 2008
Published online: October 28, 2008
Number of Print Pages : 5
Number of Figures : 2, Number of Tables : 3, Number of References : 19

  

Publication Details

Respiration (International Journal of Thoracic Medicine)

Vol. 77, No. 1, Year 2009 (Cover Date: January 2009)

Journal Editor: Bolliger C.T. (Cape Town)
ISSN: 0025-7931 (Print), eISSN: 1423-0356 (Online)

For additional information: http://www.karger.com/RES


Article / Publication Details

First-Page Preview
Abstract of Clinical Investigations

Received: 3/20/2008
Accepted: 8/18/2008
Published online: 10/28/2008

Number of Print Pages: 5
Number of Figures: 2
Number of Tables: 3

ISSN: 0025-7931 (Print)
eISSN: 1423-0356 (Online)

For additional information: http://www.karger.com/RES


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