Hypoxia and anxiety were examined in 86 female basketball players aged 10–14. The study compared normobaric hypoxia, external counterpulsation, their combination and ordinary preparation.
Hypoxia and anxiety: study design
The abstract lists groups of 15 for counterpulsation, 17 for hypoxia, 24 for combined exposure and 30 controls. However, the table gives 19 rather than 24 for the combined group. The discrepancy is retained rather than silently reconciled.
Reported findings
Anxiety decreased by 4.8%, 17.5% and 19.9% in the intervention groups respectively; significance was indicated for the second and third groups. Psychological measures and physical performance remain different outcomes. Moreover, the combined programme does not isolate the contribution of hypoxia from counterpulsation.
Hypoxia and anxiety: practical interpretation
This was normobaric hypoxia, not an IHHT trial. Possible overlap with another publication about the same young-player programme also prevents treating every report as independent replication. Overall, the findings concern the studied preparation setting; they are not a general prescription for oxygen exposure in children or proof of improved competition results.
Context and further reading
For context, the links below explain OXYTERRA RS equipment, the distinction between oxygen-training protocols and supervised applications. Related research helps compare populations and outcomes rather than treating different studies as interchangeable evidence.