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
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.
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.
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:
https://h2-papers.org/en/papers/33555824