Table 3.
Mean (± SE) neural responses and central and peripheral hemodynamic values at baseline and during postexercise (N=8)
| Variable | Pre-exercise Baseline |
Postexercise 20 min |
Postexercise 40 min |
Postexercise 60 min |
|---|---|---|---|---|
| Heart rate (b·min−1) | 64.1 ± 3.2 | 75.1 ± 3.7* | 70.6 ± 4.3 | 70.7 ± 4.4 |
| Heart rate variability | ||||
| HF, nu | 62.3 ± 7.4 | 57.5 ± 7.0 | 57.7 ± 7.0 | 57.7 ± 7.0 |
| LF, nu | 41.8 ± 8.0 | 71.7 ± 34 | 72 ± 35 | 72.2 ± 35 |
| LF/HF | 0.84 ± 0 | 2.8 ± 2.2 | 2.9 ± 2.3 | 2.9 ± 2.3 |
| Blood pressure variability | ||||
| LF, nu | 95.3 ± 16 | 92.8 ± 18 | 89.8 ± 20 | 90.4 ± 20 |
| BRS | 8.4 ± 2.4 | 4.8 ± 1.0 | 7.8 ± 1.5 | 6.8 ± 1.2 |
| Cardiac output (L · min−1) | 4.7 ± 0.3 | 4.5 ± 0.4 | 4.8 ± 0.5 | 4.9 ± 0.5 |
| LLBF (ml · 100 ml−1 · min−1) | 7.4 ± 1.9 | 8.2 ± 1.6 | 7.7 ± 1.8 | 7.2 ± 1.1 |
*
Significantly different than control
HF, high frequency; LF, low frequency; nu, normalize unit; BRS, baroreceptor sensitivity; LLBF, lower leg blood flow.