Table 3.
Variables | Week 0 (Visit 1) | Week 4 (Visit 2) | ||
---|---|---|---|---|
Baseline | Hyperoxia | Baseline | Hyperoxia | |
HR (bpm) | 65 ± 3 | 63 ± 5 | 56 ± 23* (13 ± 3%↓) | 55 ± 3 |
SBP (mmHg) | 127 ± 5 | 129 ± 8 | 121 ± 5 (5 ± 3%↓) | 126 ± 5# |
DBP (mmHg) | 63 ± 3 | 63 ± 5 | 56 ± 2** (11 ± 3%↓) | 56 ± 3 |
MAP (mmHg) | 90 ± 4 | 90 ± 5 | 78 ± 4** (13 ± 4%↓) | 79 ± 5 |
RPP (mmHg·beats/min) | 8240 ± 578 | 8186 ± 921 | 6647 ±318* (19 ± 4 %↓) | 6785 ± 265 |
CBV (cm/s) | 26.17 ± 3.67 | 17.47 ± 2.49## (33 ± 3%↓) | 21.47 ± 2.57 | 18.40 ± 2.56# (15 ± 3%↓) |
CVR | 2.7 ± 0.5 | 4.0 ± 0.6## | 2.8 ± 0.4 | 3.4 ± 0.5# |
Significantly lower than Baseline Visit 1 (P<0.05, P<0.01);
Significantly different from corresponding baseline value (P< 0.05, P < 0.01).
SBP = systolic blood pressure; DBP = diastolic blood pressure; MAP =mean arterial blood pressure; HR= heart rate; RPP= rate-pressure product; CBV = coronary blood flow velocity; CVR = coronary vascular resistance. Values are mean ± SEM (N = 6).