Results 201 to 210 of about 4,270 (222)
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[Relevance of the maximal expiratory flow-volume curve in an epidemiological study].
Zeitschrift fur Erkrankungen der Atmungsorgane, 1983In an epidemiological study a random sample (1,554 males aged 35 to 54 years) of the population of a hydrogen chloride air-polluted area was investigated by means of the modified MRC questionnaire and maximal expiratory flow-volume curves. The MEF-values were dependent on age and height.
H, Evers, H, Herrmann, G, Ohme
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Chest, 1988
Lung function was compared and reference standards were determined in 1,007 Polynesian, European, and Chinese teenagers attending school in Tahiti (517 boys, 490 girls; mean age, 14.4 years). Spirometric study results and maximal expiratory flow-volume curves were measured using techniques recommended by the American Thoracic Society.
F, Neukirch +4 more
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Lung function was compared and reference standards were determined in 1,007 Polynesian, European, and Chinese teenagers attending school in Tahiti (517 boys, 490 girls; mean age, 14.4 years). Spirometric study results and maximal expiratory flow-volume curves were measured using techniques recommended by the American Thoracic Society.
F, Neukirch +4 more
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Comparison of various methods for reading maximal expiratory flow-volume curves.
The American review of respiratory disease, 1979To determine the best procedure for reading maximal expiratory flow-volume curves 2 sets of 5 curves were obtained one hour apart in 89 subjects and processed digitally according to 8 different methods. Four indices were considered: the forced expiratory flows at 25, 50, and 75 per cent of the forced vital capacity, and the maximal mid-expiratory flow.
R, Peslin +3 more
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Changes in the normal maximal expiratory flow-volume curve with growth and aging.
The American review of respiratory disease, 1983On the basis of their answers to a self-administered questionnaire, 697 nonsmoking healthy subjects were chosen from a randomly selected sample representative of the white non-Mexican-American population of Tucson, Arizona, enrolled in a longitudinal study of respiratory health.
R J, Knudson +3 more
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Density dependence of the maximal expiratory flow volume curves in normal and asthmatic children.
Scandinavian journal of respiratory diseases, 1979We have studied the maximal expiratory flow volume curves with air and with an 80% helium-oxygen mixture, using 12 normal and 33 asthmatic children chosen according to clinical, functional and immunological criteria. In the normal children, the average delta Vmax (difference between the maximal flow in HeO2 and in air at corresponding lung volumes) was
C, Prefaut +4 more
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The maximal expiratory flow-volume curve. Normal standards, variability, and effects of age.
The American review of respiratory disease, 1976From a randomly selected population representative of the white population of Tucson, Ariz., satisfactory flow-volume data were obtained for 3,115 persons. Data from the 746 subjects who were totally free of symptoms or history of cardiorespiratory disease and who had never smoked were used in determining "normal" prediction equations for spirometric ...
R J, Knudson +3 more
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Electronic simulator for the human maximal expiratory flow-volume curve
Medical & Biological Engineering & Computing, 1981D P, Jones, S A, O'Connor
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The European respiratory journal. Supplement, 1995
The aim of this study was to evaluate the sensitivity and specificity of the routine spirometry tests (Forced vital capacity – FVC, Forced expiratory volume in one second – FEV1, Tiffeneau index (100FEV1/FVC) and Maximal expiratory flow-volume curve (expiratory flows after 75, 50 and 25 percent of FVC-MEF75, MEF50, MEF25).
Tocilj, Jadranka, Pavlov, Neven
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The aim of this study was to evaluate the sensitivity and specificity of the routine spirometry tests (Forced vital capacity – FVC, Forced expiratory volume in one second – FEV1, Tiffeneau index (100FEV1/FVC) and Maximal expiratory flow-volume curve (expiratory flows after 75, 50 and 25 percent of FVC-MEF75, MEF50, MEF25).
Tocilj, Jadranka, Pavlov, Neven
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Non-invasive forced expiratory flow–volume curves to measure lung function in cats
Respiratory Physiology and Neurobiology, 2007Ephraim Bar-Yishay, Simon Godfrey
exaly