Document Detail

The breathing patterns of identical twins.
MedLine Citation:
PMID:  2711052     Owner:  NLM     Status:  MEDLINE    
The resting breathing patterns of healthy adult identical twins were compared to see if there was any possible genetic component in the determination of this pattern. From breath-by-breath analysis of airflow, measured with a pneumotachometer (9 pairs of twins), the pattern of breathing was quantified in terms of individual respiratory variables; inspiratory time (TI), expiratory time (TE), total breath duration (TTOT), VT/TI, TI/TTOT, and by taking TI, TE and VT all together (TRIAD). Also, the airflow shape was quantified by harmonic analysis (ASTER). A second study was performed under more strictly defined conditions of rest and where the respiratory variables were estimated with respiratory inductance plethysmography to eliminate the possible effect of a facemask (5 pairs of twins). In each study, for each variable, the differences within twin-pairs were compared to the differences within random-pairs from the same subject population. In both studies, there were highly significant similarities within twin-pairs in the pattern of breathing, being best demonstrated when the entire 'shape' of the pneumotachogram (ASTER) or the spirogram (TRIAD) was considered.
S A Shea; G Benchetrit; T Pham Dinh; R D Hamilton; A Guz
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Respiration physiology     Volume:  75     ISSN:  0034-5687     ISO Abbreviation:  Respir Physiol     Publication Date:  1989 Feb 
Date Detail:
Created Date:  1989-05-26     Completed Date:  1989-05-26     Revised Date:  2009-11-11    
Medline Journal Info:
Nlm Unique ID:  0047142     Medline TA:  Respir Physiol     Country:  NETHERLANDS    
Other Details:
Languages:  eng     Pagination:  211-23     Citation Subset:  IM    
Department of Medicine, Charing Cross and Westminster Medical School, London, UK.
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MeSH Terms
Twins, Monozygotic*
Grant Support
//Wellcome Trust

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