Document Detail

Impact of obesity on exercise performance and pulmonary rehabilitation.
MedLine Citation:
PMID:  22348704     Owner:  NLM     Status:  Publisher    
While the impact of obesity on respiratory function has been extensively studied and several definitive conclusions have emerged, its impact on exercise performance is complex, with the available data sometimes providing contradictory or inconclusive information. Based on the literature discussed, it appears that resting alterations in lung volumes and gas exchange become attenuated during exercise in the obese, while oxygen cost of breathing and dyspnea are increased. Respiratory muscle function also seems to be impaired, such that inspiratory muscle strength is reduced and respiratory drive is increased. Furthermore, while there is no reduction in the absolute values of maximal oxygen uptake compared to normal weight subjects, oxygen uptake at a given workload is increased and maximal workload is reduced in the obese, caused by increases in body mass and/or basal metabolic rate. To date, obesity has not been listed as an indication for pulmonary rehabilitation (PR), hence the reason why conclusive data on the impact of obesity per se on PR are lacking. The majority of evidence discussed is based on comparative data from obese versus normal weight patients, with respiratory disorders currently established as indications for PR. The best evidence currently available regarding the impact of obesity on PR is for patients with chronic obstructive pulmonary disease (COPD); here, it appears that obesity per se has no negative impact on PR. Otherwise, there are no conclusive data on the impact of obesity on PR in respiratory disorders other than COPD and this remains to be investigated in the future. © 2012 The Author. Respirology © 2012 Asian Pacific Society of Respirology.
Michael Dreher; Hans-Joachim Kabitz
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-2-20
Journal Detail:
Title:  Respirology (Carlton, Vic.)     Volume:  -     ISSN:  1440-1843     ISO Abbreviation:  -     Publication Date:  2012 Feb 
Date Detail:
Created Date:  2012-2-21     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9616368     Medline TA:  Respirology     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
© 2012 The Authors. Respirology © 2012 Asian Pacific Society of Respirology.
Department of Pneumology, University Hospital, Freiburg, Germany.
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