Table 2.
Systemic and leg oxygen transport and utilization
| CON |
BLK |
|||
|---|---|---|---|---|
| Baseline | Passive | Baseline | Passive | |
| V̇e, l/min | 8.1 ± 0.5 | 10.4 ± 0.3* | 8.4 ± 0.4 | 9.8 ± 0.3 |
| fR, breaths/min | 13.6 ± 1.3 | 16.8 ± 1.1 | 14.6 ± 1.2 | 16.8 ± 1.0 |
| Vt, liter | 0.63 ± 0.05 | 0.65 ± 0.05 | 0.60 ± 0.31 | 0.59 ± 0.15 |
| Pulmonary V̇o2, l/min | 0.26 ± 0.02 | 0.30 ± 0.01* | 0.26 ± 0.01 | 0.30 ± 0.01* |
| Leg V̇o2, l/min | 0.03 ± 0.01 | 0.05 ± 0.01* | 0.03 ± 0.00 | 0.05 ± 0.01* |
| Leg (a-v)Do2, ml/dl | 7.2 ± 1.0 | 5.9 ± 0.9 | 6.7 ± 0.4 | 7.4 ± 1.0 |
Values are means ± SE. V̇e, ventilation; fR, breathing frequency; Vt, tidal volume, V̇o2, O2 consumption; (a-v)Do2, arterial-to-venous O2 difference. It should be noted that these values were obtained during the final minute of the passive movement and do not correspond to the transient increases that occurred during the first minute of passive movement.
*
Significant difference from baseline, P < 0.05.