60
M = 29%, SD = 19%, p = 0.0017
1
2
3
4
5
6
7
8
9
0
0.2
0.4
0.6
0.8
1.2
1.4
1.6
1.8
Patient
Breathing Amplitude [cm]
Oxygen Mask
No Mask
Relative change in breathing amplitude
Respiratory monitoring system