Acute Effects of Tribulus Terrestris on Anaerobic Power and Sprint Performance in Combat Sport Athletes
NCT ID: NCT07164547
Last Updated: 2025-09-10
Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
Get a concise snapshot of the trial, including recruitment status, study phase, enrollment targets, and key timeline milestones.
COMPLETED
NA
28 participants
INTERVENTIONAL
2025-03-21
2025-08-15
Brief Summary
Review the sponsor-provided synopsis that highlights what the study is about and why it is being conducted.
Participants will ingest either a single oral dose of 625 mg Tribulus terrestris (40% saponins) or a placebo 60 minutes before performing performance tests. The performance assessments will include a 30-second Wingate anaerobic cycling test and 20 m and 100 m sprint tests using photocell timing gates. After a wash-out period, participants will cross over to the alternate condition.
The primary outcomes are peak power and mean power from the Wingate test and sprint times over 20 m and 100 m.
Related Clinical Trials
Explore similar clinical trials based on study characteristics and research focus.
Effects of Astaxanthin Supplementation
NCT06511960
β-Alanine for Kickboxing Anaerobic Performance
NCT07319052
Effects of Caffeine and L-Theanine on Physical and Cognitive Performance in Trained Athletes
NCT07268573
The Effect of Postbiotics Supplementation on Exercise-induced Oxidative Stress.
NCT06417671
The Effects of Acute Chicory Coffee Consumption on Exercise Performance and Metabolism
NCT07094191
Detailed Description
Dive into the extended narrative that explains the scientific background, objectives, and procedures in greater depth.
Design and Methods
Participants: 28 trained male athletes (Kickboxing n=12, Muay Thai n=10, Taekwondo n=6), aged 18-30 years, with at least 2 years of competitive training experience.
Design: Randomized, double-blind, placebo-controlled, crossover.
Intervention: A single dose of 625 mg Tribulus terrestris (40% saponins) or matched placebo (cellulose). Supplements will be ingested 60 minutes before testing.
Procedures: After a standardized warm-up, participants will complete a 30-second Wingate test on a Monark cycle ergometer (resistance = 10% body mass) to measure peak power, mean power, and fatigue index. Following 10 minutes of recovery, participants will perform 20 m and 100 m sprint tests using double-beam photocells (Witty timing system). Each participant will perform both supplementation conditions with a ≥72 h wash-out.
Outcomes Primary outcomes: Wingate peak power (W, W/kg), mean power (W, W/kg). Secondary outcomes: 20 m and 100 m sprint times (s).
Ethics: Approved by the Ethics Committee of Atatürk University (Protocol No: E-70400699-000-2500104927). Written informed consent will be obtained from all participants.
Conditions
See the medical conditions and disease areas that this research is targeting or investigating.
Study Design
Understand how the trial is structured, including allocation methods, masking strategies, primary purpose, and other design elements.
RANDOMIZED
CROSSOVER
TREATMENT
QUADRUPLE
Study Groups
Review each arm or cohort in the study, along with the interventions and objectives associated with them.
Tribulus Terrestris
A single oral dose of 625 mg Tribulus terrestris extract (40% saponins) given 60 minutes before exercise testing.
Tribulus terrestris extract
625 mg oral capsule (40% saponins), single dose
Placebo
Visually identical cellulose capsule given 60 minutes before exercise testing.
Cellulose capsule (placebo)
Oral cellulose capsule, identical in appearance
Interventions
Learn about the drugs, procedures, or behavioral strategies being tested and how they are applied within this trial.
Tribulus terrestris extract
625 mg oral capsule (40% saponins), single dose
Cellulose capsule (placebo)
Oral cellulose capsule, identical in appearance
Eligibility Criteria
Check the participation requirements, including inclusion and exclusion rules, age limits, and whether healthy volunteers are accepted.
Inclusion Criteria
* Engaged in combat sports (kickboxing, Muay Thai, or taekwondo)
* Minimum 2 years of continuous training experience
* Training at least 4 sessions per week
* Free from injury or illness at the time of testing
* Provided written informed consent
Exclusion Criteria
* Consumption of caffeine, alcohol, or performance-enhancing substances within 24 hours before testing
* Current musculoskeletal injury or medical condition that may limit performance
* Any chronic disease or contraindication to high-intensity exercise
18 Years
30 Years
MALE
Yes
Sponsors
Meet the organizations funding or collaborating on the study and learn about their roles.
Salih ÇABUK
OTHER
Responsible Party
Identify the individual or organization who holds primary responsibility for the study information submitted to regulators.
Salih ÇABUK
Research Assistant
Locations
Explore where the study is taking place and check the recruitment status at each participating site.
Atatürk University, Sports Science Laboratory
Erzurum, Erzurum, Turkey (Türkiye)
Countries
Review the countries where the study has at least one active or historical site.
Other Identifiers
Review additional registry numbers or institutional identifiers associated with this trial.
E-70400699-050.02.04-250010269
Identifier Type: OTHER
Identifier Source: secondary_id
ETU-TRIBULUS-2025
Identifier Type: -
Identifier Source: org_study_id
More Related Trials
Additional clinical trials that may be relevant based on similarity analysis.