Relationship of lung function with obesity in healthy subjects
Relationship of lung function with obesity in healthy subjects
SAIMA SHARIF, SHAGUFTA NAZ, FARKHANDA MANZOOR, AYESHA NOOR & ZAHRA JAMIL
ABSTRACT
Obesity exerts negative effects on all the system of the human body, including the respiratory system and therefore has high mortality and morbidity rates. This cross-sectional study was designed to find the relationship of lung function with obesity in healthy subject. The study was carried out in young females of Lahore College for Women University, Lahore from January 2017 to June 2017. During this period a total of 180 females were enrolled. Anthropometric measurements and the BMI of subjects were measured according to standard protocol after taking written consents. On the basis of body mass Index (BMI) subjects were divided into three groups normal weight (n=80), overweight (n=29) and obese (n=71). Respiratory function was measured by peak expiratory flow rate (PEFR) with the help of wright’s peak flow meter. Demographic data was presented as mean ± S.E.M. The level of significance was p ≤ 0.05. The average age of normal weight, overweight and obese subjects were 20.9 ± 2.09 y, 22.9 ± 0.97 y and 19.3 ± 1.87 y respectively. In individuals, having normal weight correlation between BMI and PEFR was direct and non-significant (r = 0.17 p > 0.05). In overweight subjects, there was inverse relationship between BMI and PFM (r = -0.494) and was highly significant. Similar result were obtained in obese females in which the inverse association was highly significant (r = -0.580; p < 0.01). It was concluded that subjects with the increase BMI demonstrated a decline in respiratory function. However in obese subjects, the peak expiratory flow rate (PEFR) was more reduced.
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