Table 2.
Central blood pressure and pulse wave analysis variables at baseline and 2.5 h following ingestion of nitrate-depleted or nitrate-rich beetroot juice in the morning, afternoon, and evening
| PL-MORN | BR-MORN | PL-AFT | BR-AFT | PL-EVE | BR-EVE | |
|---|---|---|---|---|---|---|
| SBP (mmHg) | ||||||
| Baseline | 100 ± 6 | 100 ± 7 | 99 ± 6 | 101 ± 5 | 100 ± 6 | 101 ± 7 |
| 2.5 h | 100 ± 8 | 97 ± 6* | 100 ± 6 | 98 ± 6* | 99 ± 6 | 99 ± 7* |
| DBP (mmHg) | ||||||
| Baseline | 69 ± 6 | 70 ± 7 | 69 ± 5 | 71 ± 5 | 69 ± 6 | 69 ± 5 |
| 2.5 h | 71 ± 6 | 69 ± 6 | 70 ± 6 | 68 ± 5 | 71 ± 7 | 70 ± 7 |
| AP (mmHg) | ||||||
| Baseline | – 3 ± 3 | – 2 ± 4 | – 2 ± 3 | – 2 ± 3 | – 3 ± 2 | – 1 ± 4 |
| 2.5 h | – 1 ± 4 | – 3 ± 3 | – 1 ± 4 | – 3 ± 3* | – 3 ± 2 | – 4 ± 2 |
| AI (%) | ||||||
| Baseline | – 10 ± 8 | – 7 ± 13 | – 8 ± 9 | – 7 ± 10 | – 10 ± 7 | – 5 ± 11 |
| 2.5 h | – 6 ± 12 | – 13 ± 9 | – 4 ± 13 | – 11 ± 10 | – 11 ± 7 | – 12 ± 7 |
| AI@HR75 (%) | ||||||
| Baseline | – 17 ± 9 | – 14 ± 12 | – 15 ± 9 | – 15 ± 10 | – 17 ± 9 | – 12 ± 12 |
| 2.5 h | – 16 ± 11 | – 20 ± 8 | – 14 ± 12 | – 20 ± 9 | – 19 ± 7 | – 20 ± 8 |
Central systolic blood pressure (SBP), central diastolic blood pressure (DBP), augmentation pressure (AP), augmentation index (AI) and augmentation index normalised to heart rate (AI@HR75) at baseline and 2.5 h following ingestion of nitrate-depleted or nitrate-rich beetroot juice in the morning (PL-MORN and BR-MORN), afternoon (PL-AFT and BR-AFT) and evening (PL-EVE and BR-EVE). Data are presented for n = 11 as group mean ± SD
*Denotes lower than baseline (P < 0.050)