プロアスリートの足関節捻挫に対する超高濃度水素水を用いた急性水治療：症例報告
A professional elite athlete sustaining a grade II ankle sprain received six 30-minute sessions of foot and ankle hydrotherapy using super-saturated hydrogen-rich water, administered every four hours within the first 24 hours post-injury. Pain assessed by visual analogue scale decreased from 50 points at baseline to 20 points at the 24-hour follow-up. Ankle swelling was reduced by 2.8%, and dorsiflexion range of motion improved by 27.9% over the same period. These findings suggest that multi-session hydrogen-rich water hydrotherapy applied acutely after soft tissue injury may contribute to reductions in pain and swelling while facilitating recovery of joint mobility. The case highlights a potential alternative to conventional RICE-based first-aid protocols, which may limit tissue perfusion.
Molecular hydrogen is proposed to selectively scavenge reactive oxygen species and attenuate acute inflammatory responses, thereby reducing pain and edema following soft tissue injury.
Hydrogen bathing has reports of localized effects, but for systemic hydrogen intake the most efficient route is inhalation. Inhalation carries explosion risk (empirical LFL of 10%; high-concentration devices are documented in the Consumer Affairs Agency accident database and are not recommended).
See also:
https://h2-papers.org/en/papers/32399209