What Researchers Did
Researchers investigated the effects of increased tissue oxygen levels, achieved by breathing 100% oxygen in a hyperbaric chamber, on post-occlusion reactive hyperaemia in human forearm skin.
What They Found
Breathing 100% oxygen significantly reduced the time for blood flow to fall to half maximum (TR1/2) at 1 atmosphere absolute (ATA) (p < 0.05), and both TR1/2 and the time for flow to return to basal levels (TR) at 2 ATA (p < 0.005 and p < 0.0001). However, the maximum post-occlusion blood flow (Flmax) was not significantly reduced at either oxygen level.
Canadian Relevance
This study has no direct Canadian connection or specific relevance to Canadian healthcare policies or demographics.
Study Limitations
The study was conducted on human forearm skin, which may limit the generalizability of these findings to other tissues or organs.