Table 2.

Diaphragmatic excursion in the normal population.

	Right hemidiaphragm		Left hemidiaphragm		p
	mean±SD	min-max	mean±SD	min-max
Quiet breathing (cm)	2.32±0.54	0.72-3.90	2.35±0.54	1.26-3.95	0.009
Deep breathing (cm)	5.54±1.26	2.28-8.80	5.30±1.21	2.4-7.74	<0.001
Sniffing (cm)	2.90±0.63	1.01-4.90	2.97±0.56	1.40-4.88	0.001