The Impact of Body Weight Changes on Body Posture Dominance in Adult Obstructive Sleep Apnea Patients

The aim of this work was to assess the relationship between changes of body posture dominance and changes of body weight over time in obstructive sleep apnea (OSA) patients. The participants were 112 nontreated adults with OSA who underwent two polysomnographic evaluations within an average of 6.2 years, at our sleep disorders unit. Positional patients (PP)—having most of their breathing abnormalities in the supine posture and who became non-positional patients (NPP)—had a significant gain in weight and a significant increase in apnea-hypopnea index (AHI), mainly in lateral AHI.