| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH | TABLE OF CONTENTS |
|
|
|
|||||||
|
|||||||||
1 Department of Respiratory Medicine, Austin and Repatriation Medical Centre, Heidelberg, Victoria 3084; and 2 School of Behavioural Science, The University of Melbourne, Parkville, Victoria 3052, Australia
In normal young men, there
is an abrupt fall in ventilation
(
E), a rise in upper
airway resistance (UAR), and falls in the activities of the diaphragm
(Di), intercostals (IC), genioglossus (GG), and tensor palatini (TP) at
sleep onset. On waking, there is an abrupt increase in
E and fall in UAR and an increase in the activities of Di, IC, GG, and TP. The aim of this study was to
determine whether these changes are age dependent. Nine men aged 20 to
25 yr were compared with nine men aged 42 to 67 yr. Airflow, UAR, Di,
and IC surface electromyograms (EMGs) and the intramuscular EMGs of GG
and TP were recorded. It was found that the falls in IC,
GG, and TP at the transition from 
to 
electroencephalogram (EEG)
activity were significantly greater in the older than in the younger
men (P < 0.05) and that the fall in Di was also greater, although this was only marginally significant (P = 0.15). The rise in GG at -to- transitions was also greater in the
older than in the younger men, and there was a trend for TP to be higher.
diaphragm; intercostals; genioglossus; tensor palatini; upper airway resistance
This article has been cited by other articles:
|
|
 |
|
  E. F. Bailey, K. W. Fridel, and A. D. Rice Sleep/Wake Firing Patterns of Human Genioglossus Motor Units J Neurophysiol, December 1, 2007; 98(6): 3284 - 3291. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 T. Peltomaki The effect of mode of breathing on craniofacial growth revisited Eur J Orthod, October 1, 2007; 29(5): 426 - 429. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 R. Pierce, D. White, A. Malhotra, J. K. Edwards, D. Kleverlaan, L. Palmer, and J. Trinder Upper airway collapsibility, dilator muscle activation and resistance in sleep apnoea Eur. Respir. J., August 1, 2007; 30(2): 345 - 353. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 M. Eikermann, A. S. Jordan, N. L. Chamberlin, S. Gautam, A. Wellman, Y.-L. Lo, D. P. White, and A. Malhotra The Influence of Aging on Pharyngeal Collapsibility During Sleep Chest, June 1, 2007; 131(6): 1702 - 1709. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
Y. Huang, D. P. White, and A. Malhotra The Impact of Anatomic Manipulations on Pharyngeal Collapse: Results From a Computational Model of the Normal Human Upper Airway Chest, September 1, 2005; 128(3): 1324 - 1330. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 C. Guilleminault, J. H. Lee, and A. Chan Pediatric Obstructive Sleep Apnea Syndrome Arch Pediatr Adolesc Med, August 1, 2005; 159(8): 775 - 785. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 R. B Fogel, J. Trinder, D. P White, A. Malhotra, J. Raneri, K. Schory, D. Kleverlaan, and R. J Pierce The effect of sleep onset on upper airway muscle activity in patients with sleep apnoea versus controls J. Physiol., April 15, 2005; 564(2): 549 - 562. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 M Katz-Salamon Delayed chemoreceptor responses in infants with apnoea Arch. Dis. Child., March 1, 2004; 89(3): 261 - 266. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 H. A. K. Browne, L. Adams, A. K. Simonds, and M. J. Morrell Impact of age on breathing and resistive pressure in people with and without sleep apnea J Appl Physiol, March 1, 2001; 90(3): 1074 - 1082. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 J. E. BLACK, C. GUILLEMINAULT, I. M. COLRAIN, and O. CARRILLO Upper Airway Resistance Syndrome . Central Electroencephalographic Power and Changes in Breathing Effort Am. J. Respir. Crit. Care Med., August 1, 2000; 162(2): 406 - 411. [Abstract] [Full Text] [PDF]
|
|
| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH | TABLE OF CONTENTS |
| Visit Other APS Journals Online |
