Athletic PerformanceNCT06995209
Study on How Pre-Workout Supplements Affect Shooting Accuracy in Trained Basketball Players
A study testing Pre-workout Supplement in people with Athletic Performance, run by International Hellenic University at 1 site in Greece.
Trial summary
Basketball is a popular team sport where athletes score points by successfully shooting the ball into the basket. Accuracy in shooting is crucial for players to score points effectively. Read more about this study
- Who is it for?
- Ages 18 years and older, men onlyHealthy volunteers can take part
- Conditions the study is for
- Athletic Performance
- What is being tested?
- Pre-workout Supplement
- Could I receive a placebo?
- Yes, some participants may receive a placebo
- How many people
- 12 participants
- Where
- 1 siteGreece
- Study dates
- 1 Oct 2024to 30 Jun 2025
- Phase
- Interventional
- Are there results?
- Not yet: the study is under way
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 years and older
- Men only
- Healthy volunteers accepted
- Adult, Older adult
Who may be able to join
- Male participants, 18+
- Absence of drugs, abuse or medications, which are known to affect the shooting accuracy
Who cannot join
- Restraining orthopedic/neuromuscular issues
- Caffeine hypersensitivity
- Consumption of more than three servings of coffee per day
- Use of any supplement or steroids prior to the study
- Use of creatine, β-alanine, citrulline malate or BCAA-protein supplementation at least six months before the initiation of the study
Trial locations and contacts
1 site in 1 country.
Greece1 site
Sports Nutrition Laboratory, International Hellenic University, Greece
Thessaloniki
About this study
Official title: The Effect of Acute Pre-Workout Supplementation on Shooting Accuracy in Well-Trained Basketball Players
Basketball is a popular team sport where athletes score points by successfully shooting the ball into the basket. Accuracy in shooting is crucial for players to score points effectively. Pre-workout supplements (PWS) have garnered interest from athletes and fitness enthusiasts due to the purported synergistic action of their ingredients which, when consumed before training, may help improve athletic performance. The acute effect of PWS or similar on the shooting accuracy of basketball athletes has not yet been investigated. Therefore, this study aimed to investigate the acute effect of a caffeine-based PWS (containing caffeine, creatine, β-alanine, citrulline malate, and BCAAs) on the stationary free throw, two-point, and three-point shooting accuracy in basketball players.
Read the detailed description
According to a randomized, double-blind, crossover, research design, 12 active and well-trained male basketball players will be recruited. The sample will participate in three treatments: 1) no supplement; 2) PWS and 3) Placebo (PL). Three field-based basketball shooting tests (stationary free throw, stationary two-point, and three-point shots) will be performed to assess shooting accuracy . During the first visit, participants who met the inclusion criteria will visit our laboratory for health assessment/ screening. At the same time, after receiving a detailed verbal explanation and written instructions from our team's registered nutritionist, participants will be advised to follow the exact same diet one day before the subsequent trials, one week apart. During the second visit, all participants will arrive at the basketball court to execute the shooting tests in the following order: 1) the stationary free throw shooting test (S1P), 2) the stationary two-point shooting test (S2P), and 3) the stationary three-point shooting test (S3P). One week later, during the third visit, all players will return to the same basketball court. They will receive a single dose either PWS or PL 30 minutes prior to the evaluations. Participants and researchers will all blinded as to the type of supplement consumed. Following that, they will complete the same measurements in the same order as in the second visit. A week later all procedures will be repeated, and participants will receive the alternative supplement depending on randomization.
- Conditions
- Athletic Performance
- Being tested
- Placebo, Pre-workout Supplement
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
PlaceboDietary supplement
20 g, ~74 Kcal, 97% flavored maltodextrin, similar in color, flavor, taste, and energy as PWS
Pre-workout SupplementDietary supplement
20 g, ~73 Kcal, 200 mg caffeine, 3.3 g creatine monohydrate, 3.2 g β-alanine, 6 g citrulline malate, and 5 g branched chained amino acid (BCAA)
| Study group | Role | What they receive |
|---|---|---|
| Placebo Phase | Experimental | Participants receive placebo supplement Receives: Dietary Supplement: Placebo |
| Supplement Phase | Experimental | Participants receive the pre-workout supplement Receives: Dietary Supplement: Pre-workout Supplement |
What is being measured
The primary outcome is the main question the study is designed to answer.
The stationary free-throw shooting test
Each player will complete three sets of ten free throws, with a three-minute rest between sets. Two other players will stood under the hoop and pass the ball to the shooter.
Measured: At baseline (no supplement), 30 minutes after placebo ingestion, and 30 minutes after PWS ingestion
The stationary two-point shooting test
Each athlete should execute two stationary two-point shots from five different positions, a total of ten shots. Two other players will collect the ball and return it to the shooter. This procedure will be repeated three times, with three minutes rest between each round, resulting in a total of 30 shots. The average successful scoring percentage from the three trials will used for analysis.
Measured: At baseline (no supplement), 30 minutes after placebo ingestion, and 30 minutes after PWS ingestion
The stationary three-point shooting test
Each athlete should execute two stationary three-point shots from five different positions placed 6.75 meters, a total of ten shots. Two other players will collect the ball and return it to the shooter. This procedure will be repeated three times, with three minutes rest between each round, resulting in a total of 30 shots. The average successful scoring percentage from the three trials will used for analysis.
Measured: At baseline (no supplement), 30 minutes after placebo ingestion, and 30 minutes after PWS ingestion
Secondary outcomes (3)
Height
Height to the nearest 0.1cm will be measured using a stadiometer (Leicester portable height measure, Tanita HR 001, Tokyo, Japan
Measured: Baseline (Pre-Intervention)
Body Mass and Composition
Body mass will be measured using a calibrated digital scale to the nearest 0.1 kg, while body fat percentage, body fat mass, and fat-free mass will be analyzed via bioelectrical impedance analysis.
Measured: Baseline (Pre-Intervention)
Blood Pressure
An upper-body blood pressure monitor will be used to measure resting blood pressure.
Measured: Baseline (Pre-Intervention)
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted29 May 2025
- Study start1 Oct 2024
- Primary completion30 May 2025 (estimated)
- Study completion30 Jun 2025 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Athletic PerformanceStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Crossover
- Masking
- Double blind
- Who is masked
- Participant, Outcomes assessor
- Enrolment
- 12 participants (actual)
Sponsor and investigators
- Lead sponsor
- International Hellenic University
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Athanasios Douligeris, International Hellenic University
- Investigators
- Sousana K. Papadopoulou, Study director, International Hellenic University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT06995209
- Sponsor's protocol ID
- 38/24-23.04.2024
- Status last verified
- May 2025
- First submitted
- 26 Apr 2025
- Last updated
- 29 May 2025
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
Study at a glance
From the registry record, last updated by the sponsor on 29 May 2025. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- The Effect of Acute Pre-Workout Supplementation on Shooting Accuracy in Well-Trained Basketball Players
- ClinicalTrials.gov ID
- NCT06995209
- Acronym / sponsor ID
- 38/24-23.04.2024
- Conditions
- Athletic Performance
- Study type
- Interventional
- Recruitment status
- Active, not recruiting
- Enrolment
- 12 participants (actual)
- Lead sponsor
- International Hellenic UniversityUniversity, hospital or other
- Study start
- 1 Oct 2024 (actual)
- Primary completion
- 30 May 2025 (estimated)
- Study completion
- 30 Jun 2025 (estimated)
- First posted
- 29 May 2025 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Basketball is a popular team sport where athletes score points by successfully shooting the ball into the basket. Accuracy in shooting is crucial for players to score points effectively. Pre-workout supplements (PWS) have garnered interest from athletes and fitness enthusiasts due to the purported synergistic action of their ingredients which, when consumed before training, may help improve athletic performance. The acute effect of PWS or similar on the shooting accuracy of basketball athletes has not yet been investigated. Therefore, this study aimed to investigate the acute effect of a caffeine-based PWS (containing caffeine, creatine, β-alanine, citrulline malate, and BCAAs) on the stationary free throw, two-point, and three-point shooting accuracy in basketball players.
Detailed description
According to a randomized, double-blind, crossover, research design, 12 active and well-trained male basketball players will be recruited. The sample will participate in three treatments: 1) no supplement; 2) PWS and 3) Placebo (PL). Three field-based basketball shooting tests (stationary free throw, stationary two-point, and three-point shots) will be performed to assess shooting accuracy . During the first visit, participants who met the inclusion criteria will visit our laboratory for health assessment/ screening. At the same time, after receiving a detailed verbal explanation and written instructions from our team's registered nutritionist, participants will be advised to follow the exact same diet one day before the subsequent trials, one week apart. During the second visit, all participants will arrive at the basketball court to execute the shooting tests in the following order: 1) the stationary free throw shooting test (S1P), 2) the stationary two-point shooting test (S2P), and 3) the stationary three-point shooting test (S3P). One week later, during the third visit, all players will return to the same basketball court. They will receive a single dose either PWS or PL 30 minutes prior to the evaluations. Participants and researchers will all blinded as to the type of supplement consumed. Following that, they will complete the same measurements in the same order as in the second visit. A week later all procedures will be repeated, and participants will receive the alternative supplement depending on randomization.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Crossover
- Masking
- Double blind (participant, outcomes assessor)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Placebo Phase | Experimental | Dietary Supplement: PlaceboParticipants receive placebo supplement |
| Supplement Phase | Experimental | Dietary Supplement: Pre-workout SupplementParticipants receive the pre-workout supplement |
Who may qualify
- Ages
- 18 years and older
- Sex
- Male only
- Healthy volunteers
- Accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (2 listed)
- Male participants, 18+
- Absence of drugs, abuse or medications, which are known to affect the shooting accuracy
Key exclusion criteria (5 listed)
- Restraining orthopedic/neuromuscular issues
- Caffeine hypersensitivity
- Consumption of more than three servings of coffee per day
- Use of any supplement or steroids prior to the study
- Use of creatine, β-alanine, citrulline malate or BCAA-protein supplementation at least six months before the initiation of the study
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Placebo20 g, ~74 Kcal, 97% flavored maltodextrin, similar in color, flavor, taste, and energy as PWS | Dietary supplement | Placebo Phase |
| Pre-workout Supplement20 g, ~73 Kcal, 200 mg caffeine, 3.3 g creatine monohydrate, 3.2 g β-alanine, 6 g citrulline malate, and 5 g branched chained amino acid (BCAA) | Dietary supplement | Supplement Phase |
Primary outcome
The stationary free-throw shooting test
Time frame: At baseline (no supplement), 30 minutes after placebo ingestion, and 30 minutes after PWS ingestion
Each player will complete three sets of ten free throws, with a three-minute rest between sets. Two other players will stood under the hoop and pass the ball to the shooter.
The stationary two-point shooting test
Time frame: At baseline (no supplement), 30 minutes after placebo ingestion, and 30 minutes after PWS ingestion
Each athlete should execute two stationary two-point shots from five different positions, a total of ten shots. Two other players will collect the ball and return it to the shooter. This procedure will be repeated three times, with three minutes rest between each round, resulting in a total of 30 shots. The average successful scoring percentage from the three trials will used for analysis.
The stationary three-point shooting test
Time frame: At baseline (no supplement), 30 minutes after placebo ingestion, and 30 minutes after PWS ingestion
Each athlete should execute two stationary three-point shots from five different positions placed 6.75 meters, a total of ten shots. Two other players will collect the ball and return it to the shooter. This procedure will be repeated three times, with three minutes rest between each round, resulting in a total of 30 shots. The average successful scoring percentage from the three trials will used for analysis.
3 secondary outcomes
Height
Time frame: Baseline (Pre-Intervention)
Body Mass and Composition
Time frame: Baseline (Pre-Intervention)
Blood Pressure
Time frame: Baseline (Pre-Intervention)
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 29 May 2025.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Sousana K. Papadopoulou study director
International Hellenic University
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Pre-workout Supplement in people with Athletic Performance, run by International Hellenic University at 1 site in Greece.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 2 inclusion and 5 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: under way, not looking for participants, as of the sponsor's last update on 29 May 2025. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Greece. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
The stationary free-throw shooting test (time frame: At baseline (no supplement), 30 minutes after placebo ingestion, and 30 minutes after PWS ingestion). The study lists 3 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 29 May 2025.