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The effect of age on pulmonary performance using (FEV1/FVC) % as indicator

Authors: Ramaq G. W. Al-Kadi رمق الكادي --- Nadiya Y. Mohammed نادية يوسف --- Taghreed A. Hussain تغريد احمد حسن
Journal: Journal of the Faculty of Medicine مجلة كلية الطب ISSN: 00419419 / 24108057 Year: 2010 Volume: 52 Issue: 4 Pages: 459-461
Publisher: Baghdad University جامعة بغداد

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Abstract

Background: pulmonary function can change with age for normal individual's .Spirometric measurement for the ratio of forced expiratory volume in one second (FEV1), the forced vital capacity and the ratio (FEV1/FVC) can reveal airway obstruction and the consequence change in pulmonary performance. These parameters can be different for different race /ethnic and gender.Methods: Pulmonary function test were carried out on 29normal male and 37 normal female the test parameters were FEV1 and FVC from which the ratio of FEV1/FVC %was calculated in relation to age. Iraqi average for FEV1 and FVC and FEV1/FVC % has also been obtainedResults: results of these tests reveled that the ratio of FEV1/FVC % is almost the same for individual's ages between 20-60 and a significant depression in the value of the ratio FEV1/FVC % for ages > 60 years.Conclusion: the effect may be linked with some changes in the airways in addition to the increased weakness in the muscles in the old age people. Keyword: spirometry, FEV1, FVC, FEV1/FVC and non-smokers healthy subjects

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