Document Detail

Thoracoabdominal motion in response to treadmill and cycle exercise.
MedLine Citation:
PMID:  3098144     Owner:  NLM     Status:  MEDLINE    
The present study was designed to assess differences in compartmental contributions to ventilation between cycle pedaling and treadmill walking. Eight subjects performed submaximal cycle (CE) and treadmill (TM) exercise. The mean maximal work loads were not significantly different between the 2 modes of exercise. Ventilation (VE), oxygen uptake (VO2), and respiratory inductance plethysmography (RIP) were measured continuously during both modes of exercise. During both TM and CE, VE measured by RIP was found to correlate significantly with VE measured by pneumotachometer. Although the ventilation/work load relationship for CE exceeded that for TM in all subjects, when changes in rib cage (RC) and abdominal (ABD) tidal volume responses were expressed relative to changes in VE, no significant differences were found between TM and CE (RC, p greater than 0.05; ABD, p greater than 0.05). When these changes in tidal volume were expressed relative to changes in work load and independent of ventilation, there were no significant differences between separate compartmental responses during TM or CE (RC, p greater than 0.05; ABD, p greater than 0.05). We conclude that while absolute degrees of ventilation at a given work load differ between cycling and walking, the postural and ventilatory differences between these forms of exercise do not appear to induce differences in the relative contributions of the rib cage or the abdomen to tidal breathing.
J A Wells; R J Smyth; A S Rebuck
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Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  The American review of respiratory disease     Volume:  134     ISSN:  0003-0805     ISO Abbreviation:  Am. Rev. Respir. Dis.     Publication Date:  1986 Dec 
Date Detail:
Created Date:  1987-01-15     Completed Date:  1987-01-15     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  0370523     Medline TA:  Am Rev Respir Dis     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  1125-8     Citation Subset:  AIM; IM; S    
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MeSH Terms
Abdomen / physiology*
Carbon Dioxide / physiology
Exercise Test
Oxygen / physiology
Physical Exertion*
Thorax / physiology*
Tidal Volume
Work of Breathing
Reg. No./Substance:
124-38-9/Carbon Dioxide; 7782-44-7/Oxygen

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

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