Effect of CO2 and H2 gas mixture in cold water immersion on recovery after eccentric loading.
Miho Yoshimura, Masatoshi Nakamura, Kazuki Kasahara, Riku Yoshida, Yuta Murakami, Tatsuya Hojo, Goichi Inoue, Naohisa Makihira, Yoshiyuki Fukuoka · Heliyon · 2023
Research-use notice
Independent study record
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H2HUBB TAKEAWAY
In 34 healthy participants, CO₂/H₂ cold-water immersion helped preserve isometric strength, countermovement-jump height, and range of motion after eccentric exercise compared with the other recovery conditions. Muscle soreness increased after exercise in every group, indicating that the recovery effect did not extend to every measured outcome.
What the Researchers Studied
SUBJECTS: and
How the Study Was Conducted
Randomized human clinical trial.
How Molecular Hydrogen Was Used
They were randomly allocated into four groups: control, CWI, CO₂-rich CWI (C-CWI), and CO₂ + H₂ gas mixture CWI (CH-CWI).
What the Researchers Found
CO₂/H₂ cold-water immersion helped preserve isometric strength, countermovement-jump height, and range of motion after eccentric exercise compared with the other recovery conditions. Muscle soreness increased after exercise in every group, indicating that the recovery effect did not extend to every measured outcome.
Authors’ Conclusion
The authors concluded that cH-CWI stimulated recovery from impairments in MVC-ISO torque, CMJ height, knee-flexion ROM, tissue hardness, and echo intensity.