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Obesity

Data on obesity discussed by researchers at National Heart and Lung Institute

Published in Obesity and Diabetes Week, June 21st, 2010

Data detailed in 'Reduction of total lung capacity in obese men: comparison of total intrathoracic and gas volumes' have been presented. According to recent research published in the Journal of Applied Physiology, "Restriction of total lung capacity (TLC) is found in some obese subjects, but the mechanism is unclear. Two hypotheses are as follows: 1) increased abdominal volume prevents full descent of the diaphragm; and 2) increased intrathoracic fat reduces space for full lung expansion."

"We have measured total intrathoracic volume at full inflation using magnetic resonance imaging (MRI) in 14 asymptomatic obese men [mean age 52 yr, body mass index (BMI) 35-45...

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