Journal of Applied Physiology http://www.adinstruments.com/labchart/faseb
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

J Appl Physiol 53: 750-755, 1982;
8750-7587/82 $5.00
This Article
Right arrow Full Text (PDF)
Right arrow Submit a response
Right arrow Alert me when this article is cited
Right arrow Alert me when eLetters are posted
Right arrow Alert me if a correction is posted
Right arrow Citation Map
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Mead, J.
Right arrow Articles by Loring, S. H.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Mead, J.
Right arrow Articles by Loring, S. H.

Journal of Applied Physiology, Vol 53, Issue 3 750-755, Copyright © 1982 by American Physiological Society

ARTICLES

Analysis of volume displacement and length changes of the diaphragm during breathing

J. Mead and S. H. Loring

Diaphragmatic volume displacements cause equal displacements of abdominal contents. Since the rib cage forms a variable part of the abdominal container (the variable part being its area of apposition with the diaphragm) the rib cage and ventral abdominal wall share in abdominal displacements. The fraction of total rib cage volume displacement (delta Vrc) contributing to abdominal displacement is predicted from anatomic considerations and measurements. During quiet inspirations it is estimated that more than half of delta Vrc goes into abdominal expansion. This displacement plus the outward displacement of the anterolateral abdominal wall constitute the diaphragmatic displacement. In a typical inspiration in which delta Vrc accounts for 3/4 of the lung volume change, the diaphragm displaces nearly the same volume. Associated changes in diaphragm length are estimated with a model. Diaphragm shortening during an inspiration in which only the rib cage expands is estimated to be only 11% less than during a normal inspiration. We conclude that the direct rib cage contribution to lung volume change is much less, and that diaphragmatic contribution is much more than was previously thought.


This article has been cited by other articles:


Home page
 J. Appl. Physiol.Home page
K. E. Finucane, J. A. Panizza, and B. Singh
Efficiency of the normal human diaphragm with hyperinflation
J Appl Physiol, October 1, 2005; 99(4): 1402 - 1411.
[Abstract] [Full Text] [PDF]

Home page
 Physiol. Rev.Home page
A. De Troyer, P. A. Kirkwood, and T. A. Wilson
Respiratory Action of the Intercostal Muscles
Physiol Rev, April 1, 2005; 85(2): 717 - 756.
[Abstract] [Full Text] [PDF]

Home page
 J. Appl. Physiol.Home page
B. Singh, J. A. Panizza, and K. E. Finucane
Diaphragm electromyogram root mean square response to hypercapnia and its intersubject and day-to-day variation
J Appl Physiol, January 1, 2005; 98(1): 274 - 281.
[Abstract] [Full Text] [PDF]

Home page
 Eur Respir JHome page
W.D-C. Man, J. Moxham, and M.I. Polkey
Magnetic stimulation for the measurement of respiratory and skeletal muscle function
Eur. Respir. J., November 1, 2004; 24(5): 846 - 860.
[Abstract] [Full Text] [PDF]

Home page
 J. Appl. Physiol.Home page
A. Aliverti, G. Ghidoli, R. L. Dellaca, A. Pedotti, and P. T. Macklem
Chest wall kinematic determinants of diaphragm length by optoelectronic plethysmography and ultrasonography
J Appl Physiol, February 1, 2003; 94(2): 621 - 630.
[Abstract] [Full Text] [PDF]

Home page
 Am. J. Respir. Crit. Care Med.Home page
ATS/ERS Statement on Respiratory Muscle Testing
Am. J. Respir. Crit. Care Med., August 15, 2002; 166(4): 518 - 624.
[Full Text] [PDF]

Home page
 ChestHome page
M. I. Polkey and J. Moxham
Clinical Aspects of Respiratory Muscle Dysfunction in the Critically Ill
Chest, March 1, 2001; 119(3): 926 - 939.
[Full Text] [PDF]

Home page
 J. Appl. Physiol.Home page
J. E. Butler, D. K. McKenzie, and S. C. Gandevia
Discharge frequencies of single motor units in human diaphragm and parasternal muscles in lying and standing
J Appl Physiol, January 1, 2001; 90(1): 147 - 154.
[Abstract] [Full Text] [PDF]

Home page
 ChestHome page
K. Suga, T. Tsukuda, H. Awaya, N. Matsunaga, K. Sugi, and K. Esato
Interactions of Regional Respiratory Mechanics and Pulmonary Ventilatory Impairment in Pulmonary Emphysema : Assessment With Dynamic MRI and Xenon-133 Single-Photon Emission CT
Chest, June 1, 2000; 117(6): 1646 - 1655.
[Abstract] [Full Text] [PDF]

Home page
 J. Appl. Physiol.Home page
R. Chen, B. Kayser, S. Yan, and P. T. Macklem
Twitch transdiaphragmatic pressure depends critically on thoracoabdominal configuration
J Appl Physiol, January 1, 2000; 88(1): 54 - 60.
[Abstract] [Full Text] [PDF]

Home page
 J. Appl. Physiol.Home page
A. Sanna, F. Bertoli, G. Misuri, F. Gigliotti, I. Iandelli, M. Mancini, R. Duranti, N. Ambrosino, and G. Scano
Chest wall kinematics and respiratory muscle action in walking healthy humans
J Appl Physiol, September 1, 1999; 87(3): 938 - 946.
[Abstract] [Full Text] [PDF]

Home page
 J. Appl. Physiol.Home page
H. Imanaka, W. R. Kimball, J. C. Wain, M. Nishimura, K. Okubo, D. Hess, and R. M. Kacmarek
Recovery of diaphragmatic function in awake sheep after two approaches to thoracic surgery
J Appl Physiol, November 1, 1997; 83(5): 1733 - 1740.
[Abstract] [Full Text] [PDF]

Home page
 J. Appl. Physiol.Home page
A. Aliverti, S. J. Cala, R. Duranti, G. Ferrigno, C. M. Kenyon, A. Pedotti, G. Scano, P. Sliwinski, P. T. Macklem, and S. Yan
Human respiratory muscle actions and control during exercise
J Appl Physiol, October 1, 1997; 83(4): 1256 - 1269.
[Abstract] [Full Text] [PDF]


HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
Visit Other APS Journals Online