Table 2. Mean (± standard deviation) of flow parameter values from recorded inhalation flow signals averaged across all participants.

Flow Range	PIFR (L/min)	IC (L)	Tr (ms)
High (≥70 L/min)	109±21 (70–142)	2.81±0.7 (1.82–4.09)	317±145 (134–597)
Medium (50–70 L/min)	60±5 (52–66)	1.77±0.5 (1.18–2.98)	317±136 (155–770)
Low (25–50 L/min)	39±4 (32–44)	1.33±0.5 (0.71–2.48)	323±107 (146–562)