UMIN-ICDS Clinical Trial

Unique ID issued by UMIN UMIN000062599
Receipt number R000071551
Scientific Title Effects of hop supplementation on muscle damage, inflammatory response, and recovery of muscle function following resistance evercise.
Date of disclosure of the study information 2026/08/18
Last modified on 2026/08/18 11:03:20

* This page includes information on clinical trials registered in UMIN clinical trial registed system.
* We don't aim to advertise certain products or treatments


Basic information

Public title

Effect of supplementation on recovery of muscle fatigue

Acronym

Effect of supplementation on recovery of muscle fatigue

Scientific Title

Effects of hop supplementation on muscle damage, inflammatory response, and recovery of muscle function following resistance evercise.

Scientific Title:Acronym

Effect of supplementation on recovery of muscle fatigue

Region

Japan


Condition

Condition

Healthy adult

Classification by specialty

Not applicable Adult

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

To evaluate the effects of hop supplementation on muscle damage, inflammatory responses, and the recovery of muscle function following resistance training

Basic objectives2

Efficacy

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

Blood Myoglobin, Urinary 3Methylhistidine

Key secondary outcomes

Growth Hormone, Free Testosterone, Cortisol, Blood Glucose, Muscle Thickness, Maximum Muscle Strength, Muscle Power, VAS (Fatigue, Muscle Swelling, Muscle Soreness, HR, BP)


Base

Study type

Interventional


Study design

Basic design

Cross-over

Randomization

Randomized

Randomization unit

Individual

Blinding

Double blind -all involved are blinded

Control

Placebo

Stratification


Dynamic allocation


Institution consideration


Blocking


Concealment



Intervention

No. of arms

2

Purpose of intervention

Prevention

Type of intervention

Food

Interventions/Control_1

Daily intake of hop supplementation for 2 weeks - Washout - Daily intake of placebo for 2 weeks

Interventions/Control_2

Daily intake of placebo for 2 weeks - Washout - Daily intake of hop supplementation for 2 weeks

Interventions/Control_3


Interventions/Control_4


Interventions/Control_5


Interventions/Control_6


Interventions/Control_7


Interventions/Control_8


Interventions/Control_9


Interventions/Control_10



Eligibility

Age-lower limit

18 years-old <=

Age-upper limit

27 years-old >=

Gender

Male and Female

Key inclusion criteria

1.Individuals aged 18 or higher and less than 27 years old.
2.Individuals who are ability to perform resistance training trial.
3.Individuals who have providec prior infomed consent.

Key exclusion criteria

1.Individuals diagnosed with medical conditions for which exercise is absolutely contraindicated.
2.Individuals with metabolic, respiratory, cardiovascular, or coagulation disorders, or those who have been advised by a physician to avoid high-intensity exercise.
3.Individuals with orthopedic conditions affecting the lower extremities that may interfere with resistance exercise.
4.Individuals currently taking medication or habitually consuming dietary supplements.
5.Individuals with allergies to the test food (including soybeans, hops, hop-derived products, or any other ingredients contained in the test food).
6.Individuals with irregular menstrual cycles or those using oral contraceptives.
7.Individuals who are pregnant, may be pregnant, are planning to become pregnant, or are breastfeeding.
8.Individuals for whom study measurements may be difficult to perform (including women with irregular menstrual cycles).

Target sample size

20


Research contact person

Name of lead principal investigator

1st name Kazushige
Middle name
Last name Goto

Organization

Ritsumeikan University

Division name

Faculty of Sport and Health Science

Zip code

525-8577

Address

1-1-1, Noji-higashi, Kusatsu, Shiga, Japan

TEL

077-599-4127

Email

kagoto@fc.ritsumei.ac.jp


Public contact

Name of contact person

1st name Kazushige
Middle name
Last name Goto

Organization

Ritsumeikan University

Division name

Faculty of Sport and Health Science

Zip code

525-8577

Address

1-1-1, Noji-higashi, Kusatus, Shiga, Japan

TEL

077-599-4127

Homepage URL


Email

kagoto@fc.ritsumei.ac.jp


Sponsor or person

Institute

Ritsumeikan University
Faculty of Sport and Health Science

Institute

Department

Personal name



Funding Source

Organization

DAICEL Corporation

Organization

Division

Category of Funding Organization

Profit organization

Nationality of Funding Organization



Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization

Ritsumeikan University

Address

1, Suzakucho, Nishinokyo, Nakagyo-ku, Kyoto, Japan

Tel

N/A

Email

N/A


Secondary IDs

Secondary IDs

NO

Study ID_1


Org. issuing International ID_1


Study ID_2


Org. issuing International ID_2


IND to MHLW



Institutions

Institutions

立命館大学スポーツ健康科学部(滋賀県)


Other administrative information

Date of disclosure of the study information

2026 Year 08 Month 18 Day


Related information

URL releasing protocol


Publication of results

Unpublished


Result

URL related to results and publications


Number of participants that the trial has enrolled


Results


Results date posted


Results Delayed


Results Delay Reason


Date of the first journal publication of results


Baseline Characteristics


Participant flow


Adverse events


Outcome measures


Plan to share IPD


IPD sharing Plan description



Progress

Recruitment status

Preinitiation

Date of protocol fixation

2026 Year 08 Month 04 Day

Date of IRB

2026 Year 08 Month 04 Day

Anticipated trial start date

2026 Year 08 Month 14 Day

Last follow-up date

2026 Year 12 Month 31 Day

Date of closure to data entry


Date trial data considered complete


Date analysis concluded



Other

Other related information



Management information

Registered date

2026 Year 08 Month 18 Day

Last modified on

2026 Year 08 Month 18 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000071551