What Researchers Did
Researchers conducted a double-blind, randomised, sham-controlled trial to assess the effect of hyperbaric oxygen (HBO₂) on post-concussion symptoms in 50 military service members with mild traumatic brain injury.
What They Found
No significant differences were found between the HBO₂ group and the sham-control group on the PCL-M composite score (t=-0.205, p=0.84) or the ImPACT total score (t=-0.943, p=0.35) after intervention. Both groups showed significant improvement in PCL-M composite scores and ImPACT total scores over the study period (both p=0.001), indicating no specific HBO₂ effect.
Canadian Relevance
This study was conducted in the U.S. and has no direct Canadian connection.
Study Limitations
A key limitation of this study is its single-center design, which may limit the generalizability of the findings.