Table 2.
Measures of calf muscle hemoglobin oxygen saturation (StO2) during treadmill evaluation in symptomatic patients with peripheral artery disease. Values are means (SD).
| Variables | Values |
|---|---|
| StO2 at rest (% saturation) | 51 (20) |
| Minimum exercise StO2 (% saturation) | 16 (19) |
| Time to minimum exercise StO2 (sec) | 204 (252) |
| Absolute Drop in StO2 during exercise (% saturation) | 35 (20) |
| Percentage Drop in StO2 during exercise (%) | 70 (29) |
| Average Rate of Decline in StO2 (% saturation/sec) | 0.57 (0.75) |
| StO2 at Peak Walking Time (% saturation) | 21 (21) |
| Recovery Half-Time of StO2 (sec) | 155 (163) |
| Recovery Time of StO2 (sec) | 231 (227) |
| Recovery Time to Maximal StO2 (sec) | 669 (269) |
| Maximum recovery StO2 (% saturation) | 79 (21) |