Document Detail

Nasorespiratory function and head posture.
MedLine Citation:
PMID:  9387837     Owner:  NLM     Status:  MEDLINE    
Impaired nasal breathing has been reported to cause changes in human head posture. The aim of this study was to assess whether there was any relationship between nasorespiratory function and variables of head posture in 58 young adults. The pressure flow technique was used to measure airflow rate and oral/nasal pressure and to calculate the smallest cross-sectional area of the nasal airway. A natural head position roentgenocephalogram was used to measure the craniovertical angulation (NSL/VER), craniocervical angulation (NSL/OPT), and cervical spine inclination (OPT/HOR). The results showed a trend toward enlarged craniocervical angulation and forward inclination of the cervical spine in subjects with a relatively large nasal cross-sectional area. Though the general opinion on the effects of reduced upper airway size on head posture is opposite, these results are an experimental confirmation of the theoretically expected mechanism that leads to increased head extension in obstructed subjects.
J A Huggare; M T Laine-Alava
Related Documents :
2001127 - Causes and consequences of blood pressure alterations in obstructive sleep apnea.
16623407 - Severe bronchospasm during laryngeal mask airway placement in an infant.
19357147 - Sibutramine versus continuous positive airway pressure in obese obstructive sleep apnoe...
7874957 - Does airway pressure release ventilation alter lung function after acute lung injury?
22707027 - Comparison of airway control methods and ventilation success with an automatic resuscit...
3793667 - Changes in left ventricular preload and contractility following severe burns in the dog.
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  American journal of orthodontics and dentofacial orthopedics : official publication of the American Association of Orthodontists, its constituent societies, and the American Board of Orthodontics     Volume:  112     ISSN:  0889-5406     ISO Abbreviation:  Am J Orthod Dentofacial Orthop     Publication Date:  1997 Nov 
Date Detail:
Created Date:  1997-12-23     Completed Date:  1997-12-23     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  8610224     Medline TA:  Am J Orthod Dentofacial Orthop     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  507-11     Citation Subset:  D; IM    
Department of Orthodontics, School of Dentistry, Karolinska Institutet, Huddinge, Sweden.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Head / physiology*
Nasopharynx / physiology
Nose / physiology*
Posture / physiology*
Pulmonary Ventilation / physiology
Reference Values
Regression Analysis
Reproducibility of Results
Respiration / physiology*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

Previous Document:  Comparison of shear bond strength and surface structure between conventional acid etching and air-ab...
Next Document:  Stress-related molar responses to the transpalatal arch: a finite element analysis.