Table 2.
Cardiovascular measures at resting baseline and during 2 min static handgrip
| Baseline | Static handgrip | Difference | |
|---|---|---|---|
| Mean BP (mmHg) | |||
| HT CTRL | 117 ± 3* | 150 ± 4 | +37 ± 5 |
| HT FENT | 103 ± 6 | 134 ± 7 | +33 ± 3 |
| Heart rate (beats min−1) | |||
| HT CTRL | 67 ± 4 | 85 ± 5 | +19 ± 2 |
| HT FENT | 68 ± 3 | 84 ± 5 | +15 ± 2 |
| Stroke volume (mL) | |||
| HT CTRL | 77 ± 4* | 73 ± 4 | −8 ± 3 |
| HT FENT | 72 ± 4 | 69 ± 6 | −5 ± 2 |
| Cardiac output (L min−1) | |||
| HT CTRL | 5.2 ± 0.4 | 6.2 ± 0.6 | +0.8 ± 0.2 |
| HT FENT | 4.9 ± 0.4 | 5.8 ± 0.6 | +0.6 ± 0.2 |
| Total vascular conductance (mL min−1 mmHg−1) | |||
| HT CTRL | 45 ± 4* | 42 ± 4 | −6 ± 2 |
| HT FENT | 50 ± 6 | 45 ± 6 | −7 ± 1 |
Values are average from 2–3 min of rest before, and during the entire period of 2 min static handgrip at 40% MVC. Resting values and the differences between exercising and resting values were used for comparisons. HT CTRL, hypertensive subjects before fentanyl administration; HT FENT, hypertensive subjects after fentanyl administration. Data are the mean ± SEM. *P < 0.05 vs. HT FENT.