The effect of dietary supplement on physical condition in long distance runners.

The effect of dietary supplement on physical condition in long distance runners. - The effect of dietary supplement on physical condition in long distance runners.

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000033591

Enrollment

Registered

2019-04-01

Start date

2018-08-02

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 adults

Interventions

Daily intake of 150g of dietary supplement for 1 month. No intervention

Eligibility

Sex/Gender

Male

Inclusion criteria

Inclusion criteria: 1. Subjects giving written informed consent. 2. Subjects belong to the track and field club of Teikyo Heisei University.

Exclusion criteria

Exclusion criteria: 1.Subjects who is being serious or progressive diseases. 2.Subjects who currently participate in other clinical studies. 3.Subjects who are judged unsuitable for this study by the principal investigator or the research physician.

Design outcomes

Primary

Measure	Time frame
Chalder fatigue scale	—

Secondary

Measure	Time frame
ferritin, UIBC, TIBC, Fe, RBC, Ht, Hb, MCHC, MCH, MCV, WBC, Plt, prealbmin, CK, VAS questionnaire assessed fatigue , brief-type self-administered diet history questionnaire,body weight, body mass index, body fat percentage, body fat mass, muscle mass, extensional brachial circumference, elbow flexion position circumference, maximum forearm circumference, minimum forearm circumference, the femoral circumference of 10 cm proximal to the upper edge of patella, the femoral circumference of 15 cm proximal to the upper edge of patella, maximum limb circumference, minimum limb circumference,grip strength, tongue pressure,questionnaire assessed impression after ingesting test food, diary-test food data (number of days on which test food not ingested. etc.)	—

Measure

Time frame

ferritin, UIBC, TIBC, Fe, RBC, Ht, Hb, MCHC, MCH, MCV, WBC, Plt, prealbmin, CK, VAS questionnaire assessed fatigue , brief-type self-administered diet history questionnaire,body weight, body mass index, body fat percentage, body fat mass, muscle mass, extensional brachial circumference, elbow flexion position circumference, maximum forearm circumference, minimum forearm circumference, the femoral circumference of 10 cm proximal to the upper edge of patella, the femoral circumference of 15 cm proximal to the upper edge of patella, maximum limb circumference, minimum limb circumference,grip strength, tongue pressure,questionnaire assessed impression after ingesting test food, diary-test food data (number of days on which test food not ingested. etc.)

—

Countries

Japan

Contacts

Public ContactMotomi Shibasaki

Teikyo Heisei University Department of Health and Dietetics

m.shibasaki@thu.ac.jp03-5843-4822

Outcome results

None listed

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