Figure 7. No clear relationship between torso posture and obstructive sleep apnea severity.

This patient spent significant portions of the night between 20–35 degrees (right of supine), between 60–90 degrees (supine of right lateral), and between 270–300 degrees (supine of left lateral). While the apnea-hypopnea index (AHI) in the postures close to right lateral position were relatively low compared to the overall AHI, this was not reflected in the postures in left lateral position. As such, while there is clear variability in OSA severity across the night, there is no clear trend in the relationship between torso posture and AHI, suggesting that this patient is not a candidate for postural therapy.