Document Detail

Evaluation of the effect of Islamic fasting on lung volumes and capacities in the healthy persons.
MedLine Citation:
PMID:  17965786     Owner:  NLM     Status:  MEDLINE    
OBJECTIVE: To evaluate the changes in pulmonary volumes during and after Islamic fasting. METHODS: It is a cohort study conducted on 117 healthy subjects selected on a random basis from employees, professors and students of Iran University of Medical Sciences, Tehran, Iran, between December 1999 and January 2000. All of them underwent spirometry 10 days prior to Ramadan, 2 times during Ramadan, and one time 10 days post-Ramadan. In first visit, in addition to spirometry they underwent medical examination to make sure they are healthy. All of their spirometries and background information were collected. Repeated measurements analysis of variance method was used to compare the measurements. RESULTS: Approximately 69% of subjects were male and the mean age was 23.9 years. Mean fasting time was 27.8 days. The mean difference in forced expiratory volume in 1 second (FEV1%) was significant between the 4 visits (p=0.01). The mean FEV1% increased both during fasting and after Ramadan (p=0.017). The mean vital capacity and peak expiratory flow rate values increased during Ramadan significantly (p=0.043, p<0.001). Although the mean maximum mid-expiratory flow decreased in the beginning of Ramadan and significantly increased subsequently (p=0.02), MEF50% (p=0.004) and MEF75% (p=0.047) increased in the beginning of Ramadan and decreased subsequently. CONCLUSION: As a whole, fasting increases lung volumes and might improve pulmonary function. This finding seems to be relevant to the changes in weight during Ramadan.
Seyyed-Ali J Moosavi; Ali Kabir; Ali Moghimi; Ali Chehrei; Mohammad B Rad
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Saudi medical journal     Volume:  28     ISSN:  0379-5284     ISO Abbreviation:  Saudi Med J     Publication Date:  2007 Nov 
Date Detail:
Created Date:  2007-10-29     Completed Date:  2008-02-21     Revised Date:  2008-06-23    
Medline Journal Info:
Nlm Unique ID:  7909441     Medline TA:  Saudi Med J     Country:  Saudi Arabia    
Other Details:
Languages:  eng     Pagination:  1666-70     Citation Subset:  IM    
Department of Internal Medicine, Pulmonology Ward, Iran University of Medical Sciences, Nikan Health Researchers Institute, Tehran, Iran.
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MeSH Terms
Analysis of Variance
Chi-Square Distribution
Fasting / physiology*
Forced Expiratory Flow Rates / physiology
Forced Expiratory Volume / physiology*
Respiratory Function Tests
Vital Capacity / physiology*
Comment In:
Saudi Med J. 2008 Apr;29(4):626; author reply 626-7   [PMID:  18382817 ]

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