Author(s): Dr. Pallavi Chitnis and Dr. Nirmala Deshpande

Abstract:
Obese people are at increased risk of respiratory symptoms, such as breathlessness, particularly during exercise, even if they have no obvious respiratory illness ^[2].Obesity causes increased resistance to the passage of air throughout breathing due to narrowing of the airways ^{[5, 6]}. Asian Indians have higherpercentage body fat, abdominal adiposity at lower or similarBMI levels as compared to white Caucasian. It has been recommended that different BMI cutoff points be used to determine overweight and obesity in certain racial groups. The current Consensus Statement for Revised BMI Cut-offs for Asian Indians: Normal BMI: 18.0-22.9 kg/m²; Overweight: 23.0-24.9 kg/m²; Obesity: >25 kg/m^{2 [4]}. All the participants were divide into three group of 30 each- normal weight, overweight and obese according to BMI Cut-offs for Asian Indians. Peak Expiratory Flow rate (PEFR) is recorded by computerized spirometer. Result show there is increase in PEFR in overweight as compared to normal which means increased in BMI causes increase in muscle strength. In obese group PEFR is less as compared to normal group. Proper and timely advice on weight reduction will also help in prevent respiratory complications.

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