The Ventilatory Capacity of Normal Children
نویسندگان
چکیده
منابع مشابه
The ventilatory capacity of normal children.
The study of pulmonary diseases in children is handicapped by the few relevant objective measurements which can be made. Radiological findings may remain unchanged for years and usually the only available indications of improvement or deterioration are the child's general appearance, weight, loss of schooling, and other non-specific information. Few functional measurements of the lungs have bee...
متن کاملNormal standards for single breath tests of ventilatory capacity in children.
Tests of ventilatory capacity based on the recording of a maximum forced expiration after a full inspiration are becoming increasingly widely used. They are quicker to perform and require less cooperation and effort on the part of the subject than the conventional maximum breathing capacity estimation, and the results are more informative because three indices of ventilatory capacity, each of d...
متن کاملAbnormalities of ventilatory capacity in children with asthma and bronchiectasis.
It is now generally accepted that patients with pulmonary diseases frequently suffer from an impairment of ventilatory capacity and that much of their disability is connected with this. A number of methods have been devised to measure the ventilatory capacity, which all depend on measuring the maximum volume which can be ventilated in a given time. It can be done directly by persuading the subj...
متن کاملVentilatory variables in normal children during rest and exercise.
The aim of this study was to provide a complete description of normal ventilation at rest and exercise in children and to determine how best to correct for body size. One-hundred and six children aged 8-17 years (55 male) underwent incremental bicycle exercise testing from rest to exhaustion in 3 min, 15 W.m(-2) steps and thence through 9 min recovery. All variables were calculated using helium...
متن کاملAn annual cycle in the ventilatory capacity of men with pneumoconiosis and of normal subjects.
The forced expiratory volume over 0 75 second (F.E.V.0.75) was measured monthly for 3 years in 28 working ex-miners with pneumoconiosis and for one year in 17 normal laboratory workers. A significant annual cyclical variation of 0-044 litre amplitude was found in the ex-miners, with minimum and maximum values on 2 February and 3 August respectively. In the normal sulbjects the amplitude of the ...
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ژورنال
عنوان ژورنال: Thorax
سال: 1959
ISSN: 0040-6376
DOI: 10.1136/thx.14.4.305