Skip to main content
 

Main menu

  • Home
  • Content
    • Current Issue
    • Editor's Commentary
    • Coming Next Month
    • Archives
    • Most-Read Papers of 2021
  • Authors
    • Author Guidelines
    • Submit a Manuscript
  • Reviewers
    • Reviewer Information
    • Create Reviewer Account
    • Reviewer Guidelines: Original Research
    • Reviewer Guidelines: Reviews
    • Appreciation of Reviewers
  • CRCE
    • Through the Journal
    • JournalCasts
    • AARC University
    • PowerPoint Template
  • Open Forum
    • 2022 Call for Abstracts
    • 2021 Abstracts
    • Previous Open Forums
  • Podcast
    • English
    • Español
    • Portugûes
    • 国语
  • Videos
    • Video Abstracts
    • Author Interviews
    • Highlighted Articles
    • The Journal

User menu

  • Subscribe
  • My alerts
  • Log in

Search

  • Advanced search
American Association for Respiratory Care
  • Subscribe
  • My alerts
  • Log in
American Association for Respiratory Care

Advanced Search

  • Home
  • Content
    • Current Issue
    • Editor's Commentary
    • Coming Next Month
    • Archives
    • Most-Read Papers of 2021
  • Authors
    • Author Guidelines
    • Submit a Manuscript
  • Reviewers
    • Reviewer Information
    • Create Reviewer Account
    • Reviewer Guidelines: Original Research
    • Reviewer Guidelines: Reviews
    • Appreciation of Reviewers
  • CRCE
    • Through the Journal
    • JournalCasts
    • AARC University
    • PowerPoint Template
  • Open Forum
    • 2022 Call for Abstracts
    • 2021 Abstracts
    • Previous Open Forums
  • Podcast
    • English
    • Español
    • Portugûes
    • 国语
  • Videos
    • Video Abstracts
    • Author Interviews
    • Highlighted Articles
    • The Journal
  • Twitter
  • Facebook
  • YouTube
Research ArticleOriginal Contributions

Effects of Body Position on Resting Lung Volume in Overweight and Mildly to Moderately Obese Subjects

Penelope S Benedik, Mara M Baun, Leendert Keus, Carlos Jimenez, Rodolfo Morice, Akhil Bidani and Janet C Meininger
Respiratory Care March 2009, 54 (3) 334-339;
Penelope S Benedik
Brazos Anesthesiology Associates, Bryan, Texas.
  • Find this author on Google Scholar
  • Find this author on PubMed
  • Search for this author on this site
  • For correspondence: [email protected]
Mara M Baun
School of Nursing, the University of Texas Health Science Center, Houston, Texas
  • Find this author on Google Scholar
  • Find this author on PubMed
  • Search for this author on this site
Leendert Keus
MD Anderson Cancer Center, Houston, Texas
  • Find this author on Google Scholar
  • Find this author on PubMed
  • Search for this author on this site
Carlos Jimenez
MD Anderson Cancer Center, Houston, Texas
  • Find this author on Google Scholar
  • Find this author on PubMed
  • Search for this author on this site
Rodolfo Morice
MD Anderson Cancer Center, Houston, Texas
  • Find this author on Google Scholar
  • Find this author on PubMed
  • Search for this author on this site
Akhil Bidani
Department of Biomedical Engineering, Cullen College of Engineering, University of Houston, Houston, Texas
  • Find this author on Google Scholar
  • Find this author on PubMed
  • Search for this author on this site
Janet C Meininger
School of Nursing, the University of Texas Health Science Center, Houston, Texas
  • Find this author on Google Scholar
  • Find this author on PubMed
  • Search for this author on this site
  • Article
  • References
  • Info & Metrics
  • PDF
Loading

Abstract

INTRODUCTION: A partial sitting position has been reported to increase functional residual capacity (FRC) in lean subjects, whereas FRC does not change with position in the morbidly obese. The effects of positioning in the subgroup of overweight and mildly to moderately obese subjects have not been examined. We hypothesized that a change in FRC may be related to adipose tissue distribution.

METHODS: We investigated the hypotheses that a 30° Fowler's position would increase the FRC and decrease the closing-capacity-to-FRC ratio in subjects with a body mass index in the 25.0–39.9 kg/m2 range. We tested whether body fat distribution, measured by waist circumference and waist-to-hip ratio, correlated with the lung-volume changes.

RESULTS: The 30° Fowler's position did not improve the FRC, when compared to the supine position (n = 32). The closing-capacity-to-FRC ratio was > 1 in 5 of 7 subjects while sitting, and in all 7 subjects while supine or in the 30° Fowler's position. The waist-to-hip ratio was correlated with closing capacity in all positions, and correlated with closing-capacity-to-FRC ratio in the supine position.

CONCLUSIONS: Standard position changes purported to increase FRC are ineffective in the overweight and mildly to moderately obese, a subpopulation represented by almost 67% of Americans. Bedside caregivers may need to modify current practices when the clinical goal is to improve resting lung volumes in sedentary patients.

  • functional residual capacity
  • closing capacity
  • positioning
  • obesity

Footnotes

  • Correspondence: Penelope S Benedik PhD CRNA RRT-NPS, Brazos Anesthesiology Associates, 1737 Briarcrest, Bryan TX 77802. E-mail: pvillars.benedik{at}gmail.com.
  • Copyright © 2009 by Daedalus Enterprises Inc.
PreviousNext
Back to top

In this issue

Respiratory Care: 54 (3)
Respiratory Care
Vol. 54, Issue 3
1 Mar 2009
  • Table of Contents
  • Table of Contents (PDF)
  • Cover (PDF)
  • Index by author

 

Download PDF
Article Alerts
Sign In to Email Alerts with your Email Address
Email Article

Thank you for your interest in spreading the word on American Association for Respiratory Care.

NOTE: We only request your email address so that the person you are recommending the page to knows that you wanted them to see it, and that it is not junk mail. We do not capture any email address.

Enter multiple addresses on separate lines or separate them with commas.
Effects of Body Position on Resting Lung Volume in Overweight and Mildly to Moderately Obese Subjects
(Your Name) has sent you a message from American Association for Respiratory Care
(Your Name) thought you would like to see the American Association for Respiratory Care web site.
CAPTCHA
This question is for testing whether or not you are a human visitor and to prevent automated spam submissions.
Citation Tools
Effects of Body Position on Resting Lung Volume in Overweight and Mildly to Moderately Obese Subjects
Penelope S Benedik, Mara M Baun, Leendert Keus, Carlos Jimenez, Rodolfo Morice, Akhil Bidani, Janet C Meininger
Respiratory Care Mar 2009, 54 (3) 334-339;

Citation Manager Formats

  • BibTeX
  • Bookends
  • EasyBib
  • EndNote (tagged)
  • EndNote 8 (xml)
  • Medlars
  • Mendeley
  • Papers
  • RefWorks Tagged
  • Ref Manager
  • RIS
  • Zotero

Share
Effects of Body Position on Resting Lung Volume in Overweight and Mildly to Moderately Obese Subjects
Penelope S Benedik, Mara M Baun, Leendert Keus, Carlos Jimenez, Rodolfo Morice, Akhil Bidani, Janet C Meininger
Respiratory Care Mar 2009, 54 (3) 334-339;
del.icio.us logo Digg logo Reddit logo Twitter logo CiteULike logo Facebook logo Google logo Mendeley logo
  • Tweet Widget
  • Facebook Like
  • Google Plus One

Jump to section

  • Article
  • Info & Metrics
  • References
  • PDF

Related Articles

Cited By...

Keywords

  • functional residual capacity
  • closing capacity
  • positioning
  • obesity

Info For

  • Subscribers
  • Institutions
  • Advertisers

About Us

  • About the Journal
  • Editorial Board
  • Reprints/Permissions

AARC

  • Membership
  • Meetings
  • Clinical Practice Guidelines

More

  • Contact Us
  • RSS
American Association for Respiratory Care

Print ISSN: 0020-1324        Online ISSN: 1943-3654

© Daedalus Enterprises, Inc.

Powered by HighWire