الفهرس 
Title : Correlation between body mass index and ventilatory functions in obese children
AbstractOnly 14 pages are availabe for public view
 |  | from | 140 |  |  |
| | | from | 140 | | |
Abstract
Background: Obesity represents one of the most global health problems affecting people of all ages at all socio-economic status levels. It has deleterious effect on respiratory system. Purposes of the study: to compare between actual and predicted mean value of the selected ventilatory function’s variables which are vital capacity (VC), forced vital capacity (FVC), forced expiratory volume in the first second (FEV₁), forced expiratory volume in the first second ratio (FEV₁%) and peak expiratory flow rate (PEFR) in normal weight, overweight and obese boys at 10-11, 11-12 and 12-13 years old and to investigate correlation between BMI and actual mean value of pulmonary function test variables in normal weight, overweight and obese boys at the three aged groups. Subjects and Methods: Two hundred and fourty boys with age ranged from 10 to 13 years old participated in this study. They were classified according to BMI into normal weight, overweight and obese and each group contain (20 boys normal weight, 30 boys overweight and 30 boys obese). selected ventilatory function’s variables for all boys were measured by spirometer. The study was conducted from January to April, 2016. Results:in normal weight boys, at age of 10 to 11 years, there was significant decrease in actual mean value of VC, FVC and PEFR. At age of 11 to 12 years, there was a significant decrease in actual mean value of VC, FVC, FEV₁ and PEFR. At age of 12 to 13 years, there was significant decrease in actual mean value of FVC and PEFR but significant increase in actual mean value of FEV₁%. In overweight boys, at age of 10 to 11 and 12 to 13 years, there was significant decrease in actual mean value of VC, FVC, FEV₁ and PEFR. At age of 11 to 12 years, there was significant decrease in actual mean value of VC, FVC, FEV₁ and PEFR and also significant increase in actual mean value of FEV₁%. In obese boys, at age of 10 to 11and 12 to 13 years, there was significant decrease in actual mean value of VC, FVC and PEFR