Table 2.
Time (min) | ||||||||
---|---|---|---|---|---|---|---|---|
Parameter | Conditions | 0 | 10 | 20 | 30 | 40 | 50 | 60 |
Cardiac output (l min−1) | Heating | 5.7 ± 1.7 | 5.9 ± 1.8 | 5.9 ± 1.5 | 5.7 ± 1.6 | 5.8 ± 1.8 | 6.0 ± 2.1* | 6.3 ± 1.5* |
Cooling | 5.8 ± 1.4 | 5.7 ± 1.3 | 5.9 ± 1.8 | 5.9 ± 1.7 | 5.9 ± 1.7 | 6.1 ± 1.2 | 5.8 ± 2.1 | |
Heart rate (beats min−1) | Heating | 62 ± 8 | 64 ± 11 | 64 ± 12 | 62 ± 9 | 63 ± 9 | 63 ± 9 | 65 ± 8 |
Cooling | 63 ± 9 | 60 ± 7* | 60 ± 8* | 61 ± 9 | 61 ± 9 | 61 ± 8 | 62 ± 9 | |
Stroke volume (ml) | Heating | 91 ± 22 | 92 ± 20 | 91 ± 19 | 91 ± 18 | 90 ± 17 | 93 ± 15 | 94 ± 15 |
Cooling | 91 ± 20 | 93 ± 18 | 96 ± 14 | 96 ± 19 | 96 ± 18 | 98 ± 14 | 95 ± 26 | |
Mean arterial pressure (mmHg) | Heating | 93 ± 13 | 93 ± 8 | 95 ± 12 | 92 ± 13 | 95 ± 12 | 95 ± 12 | 98 ± 8* |
Cooling | 97 ± 13 | 96 ± 16 | 98 ± 13 | 99 ± 13 | 101 ± 13 | 101 ± 13 | 100 ± 8 | |
Systolic blood pressure (mmHg) | Heating | 126 ± 17 | 127 ± 17 | 127 ± 17 | 123 ± 17 | 129 ± 17 | 129 ± 16 | 133 ± 14* |
Cooling | 133 ± 14 | 131 ± 19 | 137 ± 17 | 137 ± 17 | 137 ± 18 | 140 ± 18* | 145 ± 18* | |
Diastolic blood pressure (mmHg) | Heating | 71 ± 17 | 72 ± 13 | 72 ± 14 | 72 ± 17 | 74 ± 15 | 73 ± 13 | 76 ± 13* |
Cooling | 75 ± 10 | 75 ± 12 | 77 ± 10 | 76 ± 10 | 78 ± 12 | 79 ± 10 | 82 ± 11* | |
Systemic vascular conductance | Heating | 63 ± 21 | 64 ± 19 | 63 ± 18 | 64 ± 20 | 61 ± 15 | 64 ± 22 | 66 ± 20 |
(ml min−1 mmHg−1) | Cooling | 59 ± 12 | 59 ± 11 | 60 ± 13 | 60 ± 15 | 60 ± 14 | 60 ± 13 | 59 ± 15 |
Data are shown as means ± SD for eight subjects. *Different from baseline (0), P < 0.05.