Hydrogen Gas vs Vitamin C for Exercise Recovery in Rats
A Comparison of the Antioxidant Effects Between Hydrogen Gas Inhalation and Vitamin C Supplementation in Response to a 60-Min Treadmill Exercise in Rat Gastrocnemius Muscle
Research hubs: Exercise Recovery · Cardiovascular System
This research was done in animals. Results in animals often don't carry over to people.
- Evidence type
- Animal study (rat)
- Authors
- Li Chaoqun, Zhao Yuqi, Zhou Shi, Yu Zhenghui, Wen Li
- Journal
- Frontiers in Physiology
- Year
- 2021
- PMID
- 34721070
- Study Type
- Rat
- Participants
- 81
- Delivery
- Gas
- Dose
- 1-h hydrogen gas inhalation 30 min prior to 60-min treadmill exercise
- H₂ concentration
- 4%
- Outcome
- Positive
- Peer Reviewed
- Yes
- Cited by
- 9 (OpenAlex, as of November 2026)
- Country
- China
TL;DR
Inhaling hydrogen gas before exercise reduced oxidative stress without hindering the development of mitochondria in muscles, unlike vitamin C which reduced both.
Key Finding
Hydrogen gas inhalation reduced exercise-induced oxidative stress markers while preserving the muscle's natural adaptive signaling pathways, whereas vitamin C supplementation reduced oxidative stress but blunted these beneficial adaptive responses.
Summary
Researchers compared how hydrogen gas inhalation and vitamin C supplementation affected muscle damage and recovery in rats after intense treadmill exercise. Both treatments reduced markers of oxidative stress (cellular damage from exercise), but vitamin C appeared to interfere with the muscle's natural adaptation processes, while hydrogen gas did not. This suggests hydrogen gas might be a better choice for exercise recovery because it reduces harmful oxidative damage without blocking the beneficial changes that help muscles adapt to training.
Practical Takeaway
This rat study suggests hydrogen gas inhalation may be a more selective antioxidant for exercise recovery than vitamin C, potentially offering oxidative stress protection without interfering with muscle adaptation. However, this is early animal research; human studies are needed to determine whether these effects apply to people, and the optimal dose and type of exercise for hydrogen inhalation remain unclear.
Abstract (excerpt)
The reactive oxygen species (ROS) produced during exercise act as a double-edged sword because they may cause oxidative damage but also play a role in the signaling pathways. A supplementation of exogenous antioxidants can reduce the total amount of ROS during exercise while it may also affect…