Table 4.
Brachial artery and balloon diameter measurements for validation protocol
| Baseline | Exercise | Balloon Inflation |
Deflation | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Target | 60 s | 90 s | 120 s | 150 s | 180 s | ||||
| Rest | |||||||||
| Proximal vessel, cm | 0.43±0.01 | 0.43±0.01 | 0.43±0.01 | 0.44±0.01 | 0.43±0.01 | 0.44±0.01 | 0.43±0.01 | 0.44±0.01 | |
| Vessel at site, cm | 0.43±0.01 | 0.43±0.01 | 0.43±0.01 | 0.43±0.01 | 0.44±0.01 | 0.44±0.01 | 0.43±0.01 | 0.44±0.01 | |
| Balloon, cm | 0.39±0.01 | 0.39±0.01 | 0.38±0.01 | 0.38±0.01 | 0.38±0.01 | 0.39±0.01 | |||
| 10% MVC | |||||||||
| Proximal vessel, cm | 0.44±0.01 | 0.44±0.01 | 0.44±0.01 | 0.44±0.01 | 0.44±0.01 | 0.44±0.01 | 0.44±0.01 | 0.44±0.01 | 0.44±0.01 |
| Vessel at site, cm | 0.44±0.01 | 0.44±0.01 | 0.44±0.01 | 0.44±0.01 | 0.44±0.01 | 0.44±0.01 | 0.44±0.01 | 0.44±0.01 | 0.44±0.01 |
| Balloon, cm | 0.40±0.01 | 0.39±0.01 | 0.39±0.01 | 0.39±0.01 | 0.40±0.01 | 0.39±0.01 | |||
| 20% MVC | |||||||||
| Proximal vessel, cm | 0.43±0.01 | 0.44±0.01 | 0.44±0.01 | 0.44±0.01 | 0.44±0.01 | 0.44±0.01 | 0.44±0.01 | 0.44±0.01 | 0.45±0.01 |
| Vessel at site, cm | 0.44±0.01 | 0.44±0.01 | 0.44±0.01 | 0.44±0.01 | 0.44±0.01 | 0.44±0.01 | 0.44±0.01 | 0.44±0.01 | 0.45±0.01 |
| Balloon, cm | 0.40±0.01 | 0.40±0.01 | 0.40±0.01 | 0.40±0.01 | 0.40±0.01 | 0.40±0.01 | |||
Values are means ± SE; n = 6. Proximal vessel refers to brachial artery diameter 2–3 cm proximal to balloon; Vessel at site refers to brachial artery diameter at site of the balloon. Balloon is balloon diameter.