title: [Standard indicators of pneumotachometry and the Votchal-Tiffeneau index in the evaluation of external respiratory function in adolescents].
abstract: A study was made of the indices of pneumotachometry (PT): PT of exhalation, PT of inhalation and their ratio--in 263 adolescents (125 boys and 138 girls) with normal physical and sexual development. Direct correlation of sex, age and height with PT indices was established. Linear regression equations were made up for the calculation of standard parameters. It was shown that the ratio of PT of exhalation/PT of inhalation less than I in clinically healthy adolescents could not be a sign of disorder of bronchial permeability. The spirographic Votchal Tiffeneau index was-studied in 260 of them (125 boys and 135 girls). The lower permissible normal limit for the Metatest-1 spirograph was 76.5 +/- 0.4%.
authors: V N
authors: VN
authors: Kozlovskiĭ
authors: F A
authors: FA
authors: Kuliev
mesh_terms: D000293:Adolescent; D000367:Age Factors; D005260:Female; D006801:Humans; D008297:Male; D012016:Reference Values; D012044:Regression Analysis; D012119:Respiration; D012129:Respiratory Function Tests / Q000379:methods*; D012737:Sex Factors
vernacular_title: Normativnye pokazateli pnevmotakhometrii i indeksa Votchala-Tiffo v otsenke funktsii vneshnego dykhaniia u podrostkov.