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IE50SLP is the ratio of TIF50SLP to TEF50SLP calculated from the displacement of the TA wall and its first derivative. Modified from Motamedi‐Fakhr et al. 2016. IE50, inspiratory to expiratory flow at 50% tidal volume; SLP, structured light plethysmography; TA, thoraco–abdominal; TEF50, tidal expiratory flow at 50% volume; TIF50, tidal inspiratory flow at 50% volume.
