Table 3: Effects respiratory patterns on cardiorespiratory variables.

VariableSpontaneous15/min6/min (3 s inspiration + 7 s expiration)6/min (5 s inspiration + 5 s expiration)
No ujjayiNo ujjayiNo ujjayiUjjayi expNo ujjayiUjjayi expUjjayi ins + exp

RR interval (ms)830 ± 32769 ± 26 802 ± 25 789 ± 24 832 ± 26 809 ± 25 797 ± 20
Systolic blood pressure (mmHg)121.84 ± 5.67113.96 ± 5.67 117.91 ± 5.21120.06 ± 4.58111.34 ± 4.91 118.46 ± 4.77 116.25 ± 4.97
Diastolic blood pressure (mmHg)54.78 ± 3.6951.93 ± 2.88 53.99 ± 3.1455.77 ± 3.0155.14 ± 3.23 54.55 ± 3.29 54.28 ± 2.91
Oxygen saturation (%)98.37 ± 0.1799.19 ± 0.17 98.90 ± 0.18 98.91 ± 0.14 98.90 ± 0.19 98.95 ± 0.17 98.88 ± 0.18
End-tidal carbon dioxide (mmHg)36.26 ± 1.2726.11 ± 0.98 31.14 ± 1.13 30.23 ± 0.97 30.24 ± 0.68 29.76 ± 1.22 29.69 ± 0.90
(normalized to spontaneous breathing)100.00 ± 0.00152.82 ± 14.33 318.40 ± 28.48 368.48 ± 38.32 249.12 ± 24.39 318.88 ± 34.01 293.91 ± 30.56
(normalized to spontaneous breathing)100.00 ± 0.00190.88 ± 17.02 158.81 ± 11.82 183.35 ± 15.33 125.12 ± 9.96 160.69 ± 14.88 149.77 ± 14.71

P < 0.05; **P < 0.01; ***P < 0.001, versus spontaneous breathing.
#P < 0.05; ##P < 0.01; ###P < 0.001, versus no ujjayi.
P < 0.05; P < 0.01; P < 0.001, versus 6/min (3 s inspiration + 7 s expiration).