Journal of Applied Physiology
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

J Appl Physiol 87: 516-522, 1999;
8750-7587/99 $5.00
This Article
Right arrow Full Text Free
Right arrow Full Text (PDF) Free
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 Knafelc, M.
Right arrow Articles by Davenport, P. W.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Knafelc, M.
Right arrow Articles by Davenport, P. W.
Vol. 87, Issue 2, 516-522, August 1999

Relationship between magnitude estimation of resistive loads, inspiratory pressures, and the RREP P1 peak

Marie Knafelc and Paul W. Davenport

Departments of Physiological Sciences and Exercise and Sport Sciences, University of Florida, Gainesville, Florida 32610

This study investigated the relationship among resistive load magnitude (Delta R), the cortical evoked potential P1 peak amplitude of the respiratory-related evoked potential (RREP), mouth pressure (Pm), esophageal pressure (Pes), transdiaphragmatic pressure (Pdi), and resistive load magnitude estimation (ME) in human subjects. The RREP, Pdi, Pes, Pm, and ME were recorded in response to three Delta R values. The RREP was recorded from C3 and C4, referenced to the vertex CZ. The group means of the Pdi, Pm, ME, and RREP P1 amplitude increased with increases in the Delta R. A log-log plot of the P1 amplitudes showed a relationship with ME as did Pes, Pdi, and Pm. There were linear log-log relationships between CZ-C3 P1 amplitude, CZ-C4 P1 amplitude, and Pdi to ME. Pdi had a linear log-log relationship with CZ-C3 and CZ-C4. These results support the hypothesis that the estimated magnitude of the respiratory load is related to the P1 amplitude of the RREP. Pm, Pes, and Pdi are mechanically related and correlated with the P1 peak amplitude, suggesting that the mechanoreceptors mediating the P1 peak of the RREP are activated by changes in mechanical forces related to the inspiratory pump.

cortical evoked potentials; respiratory sensation; inspiration; transdiaphragmatic pressure; resistive loads


This article has been cited by other articles:


Home page
 J. Appl. Physiol.Home page
Y. L. Chou and P. W. Davenport
The effect of increased background resistance on the resistive load threshold for eliciting the respiratory-related evoked potential
J Appl Physiol, December 1, 2007; 103(6): 2012 - 2017.
[Abstract] [Full Text] [PDF]

Home page
 Proc Am Thorac SocHome page
D. E. O'Donnell, R. B. Banzett, V. Carrieri-Kohlman, R. Casaburi, P. W. Davenport, S. C. Gandevia, A. F. Gelb, D. A. Mahler, and K. A. Webb
Pathophysiology of Dyspnea in Chronic Obstructive Pulmonary Disease: A Roundtable
Proceedings of the ATS, May 1, 2007; 4(2): 145 - 168.
[Abstract] [Full Text] [PDF]

Home page
 Eur Respir JHome page
S. Redolfi, M. Raux, C. Donzel-Raynaud, C. Morelot-Panzini, M. Zelter, J-P. Derenne, T. Similowski, and C. Straus
Effects of upper airway anaesthesia on respiratory-related evoked potentials in humans
Eur. Respir. J., December 1, 2005; 26(6): 1097 - 1103.
[Abstract] [Full Text] [PDF]

Home page
 Am. J. Respir. Crit. Care Med.Home page
D. J. Eckert, P. G. Catcheside, R. McDonald, A. M. Adams, K. E. Webster, M. C. Hlavac, and R. D. McEvoy
Sustained Hypoxia Depresses Sensory Processing of Respiratory Resistive Loads
Am. J. Respir. Crit. Care Med., October 15, 2005; 172(8): 1047 - 1054.
[Abstract] [Full Text] [PDF]

Home page
 J. Appl. Physiol.Home page
C. Donzel-Raynaud, C. Straus, M. Bezzi, S. Redolfi, M. Raux, M. Zelter, J.-P. Derenne, and T. Similowski
Upper airway afferents are sufficient to evoke the early components of respiratory-related cortical potentials in humans
J Appl Physiol, November 1, 2004; 97(5): 1874 - 1879.
[Abstract] [Full Text] [PDF]

Home page
 Eur Respir JHome page
M. Bezzi, C. Donzel-Raynaud, C. Straus, C. Tantucci, M. Zelter, J-P. Derenne, and T. Similowski
Unaltered respiratory-related evoked potentials after acute diaphragm dysfunction in humans
Eur. Respir. J., October 1, 2003; 22(4): 625 - 630.
[Abstract] [Full Text] [PDF]

Home page
 J. Appl. Physiol.Home page
C. H. Huang, A. D. Martin, and P. W. Davenport
Effect of inspiratory muscle strength training on inspiratory motor drive and RREP early peak components
J Appl Physiol, February 1, 2003; 94(2): 462 - 468.
[Abstract] [Full Text] [PDF]

Home page
 Am. J. Respir. Crit. Care Med.Home page
J. Gora, J. Trinder, R. Pierce, and I. M. Colrain
Evidence of a Sleep-Specific Blunted Cortical Response to Inspiratory Occlusions in Mild Obstructive Sleep Apnea Syndrome
Am. J. Respir. Crit. Care Med., November 1, 2002; 166(9): 1225 - 1234.
[Abstract] [Full Text] [PDF]

Home page
 J. Appl. Physiol.Home page
P. W. Davenport and A. A. Hutchison
Cerebral cortical respiratory-related evoked potentials elicited by inspiratory occlusion in lambs
J Appl Physiol, July 1, 2002; 93(1): 31 - 36.
[Abstract] [Full Text] [PDF]

Home page
 Am. J. Respir. Crit. Care Med.Home page
K. E. Webster and I. M. Colrain
P3-Specific Amplitude Reductions to Respiratory and Auditory Stimuli in Subjects with Asthma
Am. J. Respir. Crit. Care Med., July 1, 2002; 166(1): 47 - 52.
[Abstract] [Full Text] [PDF]

Home page
 J. Appl. Physiol.Home page
J. A. Daubenspeck, H. L. Manning, and J. C. Baird
Midlatency respiratory-related somatosensory activity and perception of oral pressure pulses in normal humans
J Appl Physiol, June 1, 2001; 90(6): 2048 - 2056.
[Abstract] [Full Text] [PDF]

Home page
 Am. J. Respir. Crit. Care Med.Home page
R. M. Harper
Visualization of Neural Activity Associated with Dyspnea
Am. J. Respir. Crit. Care Med., March 15, 2001; 163(4): 805 - 806.
[Full Text]


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