منابع مشابه
The maximum breathing capacity test.
Since the introduction of this test by Hermannsen (1933), the measurement of maximum breathing capacity (M.B.C.) on different groups of subjects has been reported on several occasions (for example, Gray and Green, 1945; Baldwin, Cournand, and Richards, 1948; Wright, Yee, Filley, and Stranahan, 1949; and Gilson and Hugh-Jones, 1949). Most investigators have performed this test with a spirometer,...
متن کاملThe relation between the fast vital capacity curves and the maximum breathing capacity.
The maximum breathing capacity (M.B.C.) of an individual is defined as the greatest amount of air he can breathe in one minute. The test in which it is measured was introduced by Hermannsen (1933) as a test of the mechanical efficiency of the respiratory apparatus. Since then it has been widely accepted as fulfilling that purpose and has been quoted (Gray, Barnum, Matheson, and Spies, 1950) as ...
متن کاملThe effect of the rate of breathing on the maximum breathing capacity determined with a new spirometer.
Very few quantitative observations have been reported on the effect of rate of breathing on the voluntary maximum breathing capacity (M.B.C.). Proctor and Hardy (1949) found that the M.B.C. was achieved at a rate of 30 respirations per minute (R.P.M.). At higher rates of breathing the ventilatory capacity was diminished. These observations are contrary to the findings of other investigators who...
متن کاملThe effect of repeated testing on the maximum breathing capacity in normal subjects.
The maximum breathing capacity (M.B.C.) test (Hermannsen, 1933) may be used as an index of the ventilatory function of the. lungs not only on one occasion but also, when the test is repeated at intervals, as an objective assessment of the progress of disease and of the effect of treatment upon it. Although there have been some reports of the effect of repeated testing of the M.B.C. on one day, ...
متن کاملThe prognostic value of a reduced maximum breathing capacity in tuberculosis.
INTRODUCTION ADZCREASED MAXIMUM B R E A T H I N G capacity suggests a poor prognosis in patients with chronic pulmonary disease.' .4 reduction in maximum breathing capacity occurs either when the amount of functioning lung tissue is diminished as in fib& or other nstrictive lung diseases, or when diffuse pulmonary obstruction limits the velocity with which air can bc moved as in chronic bronchi...
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ژورنال
عنوان ژورنال: Thorax
سال: 1950
ISSN: 0040-6376
DOI: 10.1136/thx.5.4.325