Hydrogen-Rich Gas Enhanced Sprint-Interval Performance: Metabolomic Insights into Underlying Mechanisms.
Gengxin Dong, Haiyan Liu, Yunji Chen, Dapeng Bao, Wentao Xu, Junhong Zhou · Nutrients · 2024
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Independent study record
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H2HUBB TAKEAWAY
In 10 healthy participants, compared with the placebo, HRG inhalation significantly improved mean power, fatigue index, and time to peak for the fourth sprint and significantly reduced the attenuation values of peak power, mean power, and time to peak between the first and fourth. These findings add human evidence supporting molecular hydrogen's therapeutic potential to influence fatigue-related outcomes in healthy adults.
What the Findings Mean
H2HUBB reviewed how inhaled hydrogen gas affected the outcomes measured in 10 healthy participants. Compared with the placebo, HRG inhalation significantly improved mean power, fatigue index, and time to peak for the fourth sprint and significantly reduced the attenuation values of peak power, mean power, and time to peak between the first and fourth.
What the Researchers Studied
The researchers studied 10 healthy participants. The study used a placebo-controlled human clinical trial. The comparison condition was placebo.
What Effects Did Molecular Hydrogen Have?
Source-reported hydrogen concentration: 0.00005% source-reported H₂ gas concentration; Source-reported hydrogen exposure: 0.00005% source-reported H₂ gas concentration; via nasal cannula. Compared with the placebo, HRG inhalation significantly improved mean power, fatigue index, and time to peak for the fourth sprint and significantly reduced the attenuation values of peak power, mean power, and time to peak between the first and fourth. The authors concluded that metabolomic analysis suggests that HRG may enhance ATP recovery during interval stages by accelerating fat oxidation, providing increased energy replenishment for late-stage sprints. The diversity of blood biomarkers used to assess the metabolic mechanisms of hydrogen limits a comprehensive understanding of its effects on improving exercise performance. This study evaluated the impact of hydrogen-rich gas (HRG) on metabolites following sprint-interval exercise using metabolomics approaches, aiming to elucidate its underlying mechanisms of action.
Why These Findings Matter
These findings add human evidence supporting molecular hydrogen's therapeutic potential to influence fatigue-related outcomes in healthy adults and contribute to the growing body of molecular-hydrogen research.
How Strong Is This Evidence?
This is human clinical evidence from a placebo-controlled human clinical trial. H2HUBB interprets the findings in the context of the study design, sample, comparator, and measured outcomes rather than using one publication as a verdict on hydrogen therapy.
Technical Study Details
H2HUBB classifies this publication as human clinical study with human clinical evidence. The research population or model was 10 healthy participants. The reported sample size was 10. The study used a placebo-controlled human clinical trial. The hydrogen delivery method was inhaled hydrogen gas. The source-reported hydrogen concentration was 0.00005% source-reported H₂ gas concentration.
Limitations and Safety
Reported limitations: Although the researchers could not measure directly the concentrations of hydrogen and oxygen entering the body due to technical limitations, it was mathematically estimated that the average inspiratory flow rate of a healthy young male at quiet would be about 500 mL/s, which far exceeds the flow rate of the hydrogen gas generator, diluting the concentration of inhaled hydrogen, such that the maximum concentration of hydrogen in the inhaled body would be about 4.08%. The direct link between hydrogen’s impact on ROS and muscle metabolism was not definitively established in the data, representing a limitation of the study.
Original Study and H2HUBB Research Context
H2HUBB presents this source-grounded research record as one contribution to the broader molecular-hydrogen evidence base.