Document Detail

Association of body mass index with exercise cardiopulmonary responses in lung function-matched patients with chronic obstructive pulmonary disease.
MedLine Citation:
PMID:  22421506     Owner:  NLM     Status:  Publisher    
BACKGROUND AND OBJECTIVES: Lung function is traditionally used to define the severity of chronic obstructive pulmonary disease (COPD). However, this does not exclude other factors. This study investigated the influence of body mass index (BMI) on exercise responses and quality of life in patients with COPD matched for values of forced expiratory volume in 1 second (FEV(1)). METHODS: Underweight, normal-weight, and overweight patients with COPD, matched for FEV(1), were studied. All patients were evaluated by spirometry, a cardiopulmonary exercise test, respiratory muscle strength, and, St. George's Respiratory Questionnaire (SGRQ). RESULTS: The baseline characteristics and mean FEV(1) of the 3 groups were similar (P > .05). Respiratory muscle strengths and SGRQ scores were lowest in underweight patients (P < .05). In terms of exercise response, the lowest oxygen uptake at anaerobic threshold and peak exercise, the highest ventilatory equivalent, and the lowest oxygen pulse were evident in underweight patients (P < .05). CONCLUSIONS: Underweight patients with COPD had lower respiratory muscle strength, impaired exercise capacity, earlier anaerobic metabolism, ineffective ventilation, and poorer quality of life.
Chou-Chin Lan; Chiu-Ping Su; Lih-Lih Chou; Mei-Chen Yang; Chor-Shen Lim; Yao-Kuang Wu
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-3-14
Journal Detail:
Title:  Heart & lung : the journal of critical care     Volume:  -     ISSN:  1527-3288     ISO Abbreviation:  -     Publication Date:  2012 Mar 
Date Detail:
Created Date:  2012-3-16     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0330057     Medline TA:  Heart Lung     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2012 Elsevier Inc. All rights reserved.
Division of Pulmonary Medicine, Buddhist Tzu-Chi General Hospital, Taipei Branch, Xindian City, Taipei, Taiwan, Republic of China; School of Medicine, Tzu-Chi University, Hualien, Taiwan, Republic of China.
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