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The randomized double blind cross-over test of the effect of citric acid intake on physical fatigue after exercise

The randomized double blind cross-over test of the effect of citric acid intake on physical fatigue after exercise - The test of the effect of citric acid intake on physical fatigue after exercise

Status
Unknown
Phases
Unknown
Study type
Interventional
Source
JPRN
Registry ID
JPRN-UMIN000021285
Enrollment
20
Registered
2016-03-03
Start date
2016-03-03
Completion date
Unknown
Last updated
2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Healthy subjects

Interventions

Intake of Test sample A (containing high citric acid) before exercise &gt
&gt
wash out period (at least3 day) &gt
Intake of Test sample B (containing low citric acid) before exercise &gt
Intake of placebo before exercise &gt
Intake of Test sample A (containing high citric acid) after exercise &gt
Intake of Test sample B (containing low citric acid) after exercise &gt

Sponsors

Wakayama Medical University
Lead Sponsor

Eligibility

Sex/Gender
Male

Inclusion criteria

Inclusion criteria: 1. Healthy subjects 2. Person who provides informed consent by a document. 3. Students of Osaka Kawasaki Rehabilitation University

Exclusion criteria

Exclusion criteria: 1. Subjects who daily take Ume and carbonated drink 2. Subjects who have diastolic blood pressure over 90 mmHg 3. Subjects who have food allergy

Design outcomes

Primary

MeasureTime frame
Blood lactic acid, glucose, NK cell activity, IL-6 before or after exercise, Visual analog scale for fatigue—

Countries

Japan

Contacts

Public ContactHirotoshi Utsunomiya

Wakayama Medical University Department of Strategic Surveillance for Functional Food and Comprehensive Traditional Medicine

utsu@wakayama-med.ac.jp073-447-2300

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026