A study to investigate the effects of supplementation of botanical extract on muscular hypertrophy with resistance training: a randomized, double-blind, placebo controlled, parallel-group comparative study.

A study to investigate the effects of supplementation of botanical extract on muscular hypertrophy with resistance training: a randomized, double-blind, placebo controlled, parallel-group comparative study. - A study to investigate the effects of supplementation of botanical extract on muscular hypertrophy with resistance training.

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000049142

Enrollment

Registered

2022-12-30

Start date

2022-10-17

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

Intake of test food containing lemon myrtle extract for 12 or 16 weeks. Resistance training for 8weeks. Intake of placebo food not containing lemon myrtle extract for 12 or 16 weeks. Resistance trai

Eligibility

Sex/Gender

Male

Inclusion criteria

Inclusion criteria: 1.Subjects who are over 18 years old, healthy males and students of Nippon sport science university. 2.Subjects who don't do dumbbell curl on daily baisis.

Exclusion criteria

Exclusion criteria: 1. Subjects who intake supplements or functional foods as sports nutrition on a daily basis. 2. Subjects with symptoms that interfere with training, such as arthralgia, bone disease. 3. Subjects who have illness or medical history such as high blood pressure, heart disease. 4. Subjects who is ineligible due to physician's judgment.

Design outcomes

Primary

Measure	Time frame
Skeletal muscle mass	—

Secondary

Measure	Time frame
Muscle strength	—

Countries

Japan

Contacts

Public ContactMikako Sunaga

Nippon Sport Science University Department of Childhood Sport Education

sunaga@nittai.ac.jp03-5706-1360

Outcome results

None listed

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