Beneficial effects of mild hyperbaric oxygen exposure on microcirculation in peripheral tissues in healthy subjects: a pilot study.

What Researchers Did

Researchers exposed 15 healthy individuals to mild hyperbaric oxygen and normobaric oxygen for 70 minutes each to assess its effects on peripheral microcirculation.

What They Found

Mild hyperbaric oxygen exposure increased peripheral oxygen saturation from 98% to 100% (P=0.000) and decreased heart rate (P=0.000). It also significantly increased average blood velocity in finger nailfold capillaries from 92 µm/s to 126 µm/s (P=0.040) and flow rate from 12247 µm/s to 20926 µm/s (P<0.05).

Canadian Relevance

This pilot study was not conducted in Canada and has no direct Canadian connection.

Study Limitations

This was a pilot study involving only 15 healthy individuals, limiting the generalizability of the findings.