Role of abdominal obesity and body position in kinematics of the chest wall

To investigate the impacts of abdominal obesity and body position on kinematics of the chest wall. A cross-sectional design was conducted. Twenty abdominal obesity and twenty control males were performed four body positions for 5 min each: (1) sitting without back support, (2) sitting with back support, (3) Fowler's position, and (4) supine. Kinematics of chest wall including thoracoabdominal asynchrony, diameter changes, and ventilatory function were evaluated using optoelectronic plethysmography. Thoracoabdominal asynchrony in obesity group has higher than control group among body position (p