Table 3.

Respiratory parameters in normal and deep breathing conditions

Parameter	Normal breathing	Deep breathing	p value
fR (Hz)	0.25 ± 0.01	0.19 ± 0.01	<0.001
Respiratory depth (arbitrary unit)	0.16 ± 0.02	0.47 ± 0.06	<0.001

Data are presented as mean ± SE