# Hydrogen Rich Water Consumption Positively Affects Muscle Performance, Lactate Response, and Alleviates Delayed Onset of Muscle Soreness After Resistance Training. > レジスタンストレーニング後の筋パフォーマンス・乳酸応答・筋肉痛に対する水素水摂取の効果 ## Abstract This double-blind, placebo-controlled crossover randomized trial enrolled 12 men (mean age 23.8 ± 1.9 years) to evaluate the physiological and performance effects of consuming 1,260 ml of hydrogen-rich water (HRW) during resistance exercise. Participants completed half squats, knee flexion/extension at 70% of one-repetition maximum, and lunges at 30% body mass. Compared with placebo, HRW was associated with faster lunge completion times (p < 0.001) and lower blood lactate concentrations both mid-exercise and immediately post-exercise (HRW: 5.3 ± 2.1 and 5.1 ± 2.2 vs. placebo: 6.5 ± 1.8 and 6.3 ± 2.2 mmol·L⁻¹; p ≤ 0.008). Visual analog scale ratings for muscle soreness at 24 hours of recovery were significantly reduced in the HRW condition (26 ± 11 vs. 41 ± 20 mm; p = 0.002). These findings indicate that acute intermittent HRW hydration can improve muscle function, attenuate lactate accumulation, and reduce delayed-onset muscle soreness after resistance exercise. ### Mechanism HRW is thought to selectively scavenge reactive oxygen species, thereby reducing oxidative stress in muscle tissue, attenuating lactate accumulation during high-intensity exercise, and limiting the cellular damage that underlies delayed-onset muscle soreness. ## Bibliographic - **Authors**: Botek M, Krejčí J, McKune A, Valenta M, Sládečková B - **Journal**: J Strength Cond Res - **Year**: 2022 (2022-10-01) - **PMID**: [33555824](https://pubmed.ncbi.nlm.nih.gov/33555824/) - **DOI**: [10.1519/JSC.0000000000003979](https://doi.org/10.1519/JSC.0000000000003979) - **Study type**: human randomized controlled trial - **Delivery route**: hydrogen-rich water - **Effect reported**: positive ## Delivery context Hydrogen-rich water is a low-risk delivery route, but the achievable systemic hydrogen dose is bounded. For clinical applications, inhalation is the most efficient route; inhalation, however, carries explosion risk, and concentration matters (empirical LFL of 10% applies to inhalation environments; high-concentration devices are documented in the Consumer Affairs Agency accident database and are not recommended). ## Safety notes Hydrogen-rich water is a low-risk delivery route, but the achievable systemic hydrogen dose is bounded. For clinical applications, inhalation is the most efficient route; inhalation, however, carries explosion risk, and concentration matters (empirical LFL of 10% applies to inhalation environments; high-concentration devices are documented in the Consumer Affairs Agency accident database and are not recommended). See also: - [Inhalation concentration and LFL / UFL](https://h2-papers.org/en/safety-notes/inhalation-concentration) - [Consumer Affairs Agency accident cases](https://h2-papers.org/en/safety-notes/accident-cases) - [Inhalation safety threshold lineage](https://h2-papers.org/en/safety-notes/lineage) --- > **Cite as**: H2 Papers — PMID 33555824. https://h2-papers.org/en/papers/33555824 > **Source**: PubMed PMID [33555824](https://pubmed.ncbi.nlm.nih.gov/33555824/)