NCT05982665

Brief Summary

This study assesses the effect of molecular hydrogen inhalation in healthy males on muscle soreness, fatigue, oxidative stress, and inflammation following eccentric muscle contraction during downhill walking on the treadmill.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
14

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Aug 2023

Shorter than P25 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

July 30, 2023

Completed
9 days until next milestone

First Posted

Study publicly available on registry

August 8, 2023

Completed
6 days until next milestone

Study Start

First participant enrolled

August 14, 2023

Completed
4 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

November 29, 2023

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

November 29, 2023

Completed
Last Updated

December 1, 2023

Status Verified

November 1, 2023

Enrollment Period

4 months

First QC Date

July 30, 2023

Last Update Submit

November 29, 2023

Conditions

Outcome Measures

Primary Outcomes (2)

  • Creatine kinase

    The level of creatine kinase is measured from a venous blood sample taken by a healthcare specialist. Samples are collected in 2.7 ml citrate vacuum tubes. Samples are immediately centrifuged at 1000 g for 15 min and then divided into 0.5 ml cryotubes and frozen at -80 °C. Samples are taken pre-exercise (baseline), post-exercise, and 2 h, 24 h and 48 h post-exercise. Creatine kinase is determined by ELISA method according to the manufacturer's instructions.

    Change between values before and after 4 weeks of crossover.

  • Perceived muscle soreness

    A visual analogue scale is used to subjectively assess lower limb muscle soreness. The visual analogue scale is represented by a 100 mm line marked 0 - no pain and 100 - worst imaginable pain. The subject is instructed to mark a point on the line corresponding to their perceived muscle soreness. Muscle soreness is assessed pre-exercise (baseline), post-exercise, and 2 h, 24 h and 48 h post-exercise.

    Change between values before and after 4 weeks of crossover.

Secondary Outcomes (3)

  • Reactive strength index

    Change between values before and after 4 weeks of crossover.

  • Malondialdehydes

    Change between values before and after 4 weeks of crossover.

  • Interleukin-6

    Change between values before and after 4 weeks of crossover.

Other Outcomes (5)

  • Heart rate

    Change between values before and after 4 weeks of crossover.

  • Ventilation

    Change between values before and after 4 weeks of crossover.

  • Oxygen uptake

    Change between values before and after 4 weeks of crossover.

  • +2 more other outcomes

Study Arms (2)

Molecular hydrogen

EXPERIMENTAL

Molecular hydrogen inhalation for 60 min at 48 h, 24 h, and 60 min pre-exercise and for 30 min post-exercise and 24 h post exercise.

Other: Molecular hydrogen

Placebo

PLACEBO COMPARATOR

Placebo inhalation for 60 min at 48 h, 24 h, and 60 min pre-exercise and for 30 min post-exercise and 24 h post exercise.

Other: Placebo

Interventions

Hydrogen gas, purity \>99.9%, flow rate 300 ml/min.

Also known as: i300 Hydrogen Generator, H2 World Health & Beauty Company, Ostrava, Czech Republic
Molecular hydrogen
PlaceboOTHER

Ambient air, flow rate 300 ml/min.

Also known as: i300 Placebo Generator, H2 World Health & Beauty Company, Ostrava, Czech Republic
Placebo

Eligibility Criteria

Age20 Years - 35 Years
Sexmale
Healthy VolunteersYes
Age GroupsAdult (18-64)

You may qualify if:

  • Free of major diseases.
  • Completed questionnaire Sudden Cardiovascular Death in Sport: Lausanne Recommendations.
  • Signed informed consent.

You may not qualify if:

  • Acute conditions contraindicating laboratory testing of sports performance.
  • Hypertension.
  • Dyslipoproteinaemia.
  • Cardiorespiratory disease.
  • Pharmacotherapy affecting heart rate.
  • Musculoskeletal problems.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Palacky University, Faculty of Physical Culture

Olomouc, 77111, Czechia

Location

MeSH Terms

Conditions

MyalgiaInflammation

Interventions

Hydrogen

Condition Hierarchy (Ancestors)

Muscular DiseasesMusculoskeletal DiseasesNeuromuscular DiseasesNervous System DiseasesMusculoskeletal PainPainNeurologic ManifestationsSigns and SymptomsPathological Conditions, Signs and SymptomsPathologic Processes

Intervention Hierarchy (Ancestors)

ElementsInorganic ChemicalsGases

Study Officials

  • Adam Jarmar, Mgr

    Palacky University, Faculty of Physical Culture

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, INVESTIGATOR
Masking Details
Hydrogen and placebo generators indistinguishable to the human senses
Purpose
BASIC SCIENCE
Intervention Model
CROSSOVER
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Assistant professor

Study Record Dates

First Submitted

July 30, 2023

First Posted

August 8, 2023

Study Start

August 14, 2023

Primary Completion

November 29, 2023

Study Completion

November 29, 2023

Last Updated

December 1, 2023

Record last verified: 2023-11

Data Sharing

IPD Sharing
Will share

Anonymised raw data will be made available.

Time Frame
The data will be available once the results are published in a scientific journal.
Access Criteria
For everybody.

Locations