Table 3.
Measures of common carotid wave reflection/stiffness across testing time points between control and resistance exercise (n = 18).
| Variable | Condition | Baseline | Post-1 | Post-2 | Post-3 | Interaction |
|---|---|---|---|---|---|---|
| β stiffness (AU) | Control | 3.94 ± 0.37 | 3.63 ± 0.27 | 3.80 ± 0.24 | 3.53 ± 0.21 | 0.025 |
| RE | 3.86 ± 0.35 | 5.30 ± 0.35a,b | 4.82 ± 0.38a,b | 5.00 ± 0.33a,b | ||
| Ep (kPa) | Control | 48.72 ± 4.76 | 44.28 ± 3.24 | 44.89 ± 3.03 | 42.06 ± 2.28 | 0.032 |
| RE | 47.22 ± 4.11 | 64.78 ± 4.61a,b | 56.33 ± 4.26a,b | 59.78 ± 4.15a,b | ||
| Zc (DSC) | Control | 1846 ± 103 | 1796 ± 90 | 1777 ± 70 | 1649 ± 45 | 0.094 |
| RE | 1868 ± 89 | 2215 ± 100 | 1959 ± 87 | 1977 ± 68 | ||
| W1 (mmHg·m·sec−3) | Control | 9.39 ± 0.84 | 10.65 ± 1.25 | 9.66 ± 1.24 | 9.13 ± 0.80 | 0.015 |
| RE | 9.31 ± 0.97 | 16.61 ± 2.04a,b | 13.51 ± 1.45a,b | 11.71 ± 1.31a | ||
| lnNA (mmHg·m·s−2) | Control | 3.25 ± 0.45 | 3.58 ± 0.30 | 3.47 ± 0.23 | 3.27 ± 0.28 | 0.160 |
| RE | 3.85 ± 0.35 | 4.89 ± 0.47 | 4.22 ± 0.42 | 3.22 ± 0.47 | ||
| AIx75 (%) | Control | −25 ± 2 | −26 ± 3 | −27 ± 3 | −27 ± 3 | 0.945 |
| RE | −29 ± 3 | −30 ± 3 | −31 ± 2 | −31 ± 3 | ||
| WAVE SEPARATION (n = 12) | ||||||
| Pf (mmHg) | Control | 40 ± 2 | 38 ± 3 | 44 ± 5 | 39 ± 2 | <0.001 |
| RE | 41 ± 3 | 58 ± 4a,b | 47 ± 3a,b | 49 ± 4a,b | ||
| Pb (mmHg) | Control | 16 ± 1 | 15 ± 1 | 15 ± 1 | 16 ± 1 | 0.649 |
| RE | 15 ± 1 | 16 ± 1 | 14 ± 1 | 16 ± 1 | ||
a
Significantly different from within-condition BL, p < 0.05.
b
Significantly different from other condition, same time point, p < 0.05.
AIx75, augmentation index at a heart rate of 75 bpm; NA, negative area; Pf, forward pressure; Pb, backwards pressure, DSC, dynes x s/cm5.