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Summary of mean ± SD proportional changes in vessel diameter measured in “responders” during systemic gas perturbations.
| Vessel type | Vessel reactivity (mean ± SD) | |
|---|---|---|
| Isocapnic hyperoxia | Isoxic hypercapnia | |
| Pre-capillary arterioles | −9.5 ± 3.0% | +9.8 ± 4.7% |
| Capillaries (expected) | −11.8 ± 3.3% | +13.7 ± 3.8% |
| Post-capillary venules | −6.3 ± 2.8% | +7.5 ± 4.2% |
Note that the two capillary segments that responded in the opposite direction to expected have not been included.
