Watermelon juice in resistance exercise

The effect of watermelon juice on muscle size, sport performance and muscle soreness in men with resistance training

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

IRCT

Registry ID

IRCT20191105045340N1

Enrollment

Registered

2019-12-15

Start date

2019-12-22

Completion date

Unknown

Last updated

2019-12-17

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

Conditions

Resistance exercise.

Interventions

Intervention 1: Intervention group: Individuals will consume 710 ml (one exercise bottle) of natural watermelon juice one hour before each exercise (3 days a week for 8 weeks). Intervention 2: Control

Eligibility

Sex/Gender

Male

Age

18 Years to 35 Years

Inclusion criteria

Inclusion criteria: Age range 18-35 years old Willing to cooperate Body mass index is in the range of 20-25 Daily caffeine intake should be routinely lower than 250 mg

Exclusion criteria

Exclusion criteria: Taking supplements (hormones, proteins, creatine, etc.), nutrition (antioxidants, vitamins and minerals) and nourishing Use of psychotropic drugs, antidepressants or stimulants (ritalin) Affecting cardiovascular, respiratory, muscular, metabolic, chronic diseases and orthopedic problems affecting exercise performance A history of smoking, drugs and alcohol at 6 months prior to the study Experience in bodybuilding activities for 6 months prior to study (both professionally and non-professionally)

Design outcomes

Primary

Measure	Time frame
Muscle size. Timepoint: At the beginning of the study (before the intervention) and at the end of the study (at the end of the eighth week). Method of measurement: Muscle Thickness by Ultrasound.;Strength. Timepoint: At the beginning of the study (before the intervention) and at the end of the first week (before the development of muscle hypertrophy). Method of measurement: Measurement of 100% 1 repetition maximum in barbell bench press and leg press machine.;Endurance. Timepoint: At the beginning of the study (before the intervention) and at the end of the first week (before the development of muscle hypertrophy). Method of measurement: Counting the number of repetitions at 70% 1 repetition maximum in barbell bench press and leg press machine.;Muscle soreness. Timepoint: Immediately after each exercise and 24 hours after each exercise. Method of measurement: Visual Analogue Scale.	—

Measure

Time frame

Muscle size. Timepoint: At the beginning of the study (before the intervention) and at the end of the study (at the end of the eighth week). Method of measurement: Muscle Thickness by Ultrasound.;Strength. Timepoint: At the beginning of the study (before the intervention) and at the end of the first week (before the development of muscle hypertrophy). Method of measurement: Measurement of 100% 1 repetition maximum in barbell bench press and leg press machine.;Endurance. Timepoint: At the beginning of the study (before the intervention) and at the end of the first week (before the development of muscle hypertrophy). Method of measurement: Counting the number of repetitions at 70% 1 repetition maximum in barbell bench press and leg press machine.;Muscle soreness. Timepoint: Immediately after each exercise and 24 hours after each exercise. Method of measurement: Visual Analogue Scale.

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Countries

Iran (Islamic Republic of)

Contacts

Public ContactBehrooz Gholami

Iran University of Medical Sciences

bgholami616@yahoo.com+98 21 6689 2531

Outcome results

None listed

Source: IRCT (via WHO ICTRP) · Data processed: Feb 4, 2026