Obesity, characterized by excessive adipose tissue growth, varies not only in fat quantity but also in regional distribution, influencing associated health risks. The two common fat distribution patterns—apple (android) and pear (gynoid) shapes—differ in fat accumulation sites and may differently impact respiratory function. Obesity adversely affects pulmonary mechanics by increasing respiratory effort, reducing lung compliance, and impairing gas exchange. Peak Expiratory Flow Rate (PEFR) is a simple, non-invasive measure reflecting airway function and is widely used to assess respiratory health. While obesity is known to reduce lung function, the specific effects of fat distribution on PEFR remain unclear. This study aims to compare PEFR values between individuals with apple-shaped and pear-shaped obesity to understand how fat distribution influences airway performance. Understanding these differences can help tailor interventions and improve respiratory health outcomes in obese populations.