CaffeinecafhocNCT05170139
The Effects of Caffeine on Physical Performance of Ice Hockey Players
A study testing Caffeine in people with Caffeine and Athletic Performance, run by Universidad de Zaragoza at 1 site in Spain.
Trial summary
To date, only one study has evaluated the effect of caffeine supplementation on athletic performance in ice hockey players finding a lack of ergogenic effect. This lack of effect is surprising as caffeine has been suggested to be an effective and safe nutritional supplement to improve physical performance in both… Read more about this study
- Who is it for?
- Ages 18 to 35 years, men onlyHealthy volunteers can take part
- Conditions the study is for
- Caffeine, Athletic Performance
- What is being tested?
- Caffeine
- Could I receive a placebo?
- Yes, some participants may receive a placebo
- How many people
- 13 participants
- Where
- 1 siteSpain
- Study dates
- 1 Mar 2021to 30 May 2021
- Phase
- Interventional
- Are there results?
- None posted in the registry
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 to 35 years
- Men only
- Healthy volunteers accepted
- Adult
Who may be able to join
- Over 18 years,
- Male
- Play in the Spanish ice hockey first division.
Who cannot join
- Participants taking drugs containing ephedrine or antibiotics.
- Having suffered a musculoskeletal injury in the 3 months prior to the tests.
Trial locations and contacts
1 site in 1 country.
About this study
Official title: The Effects of Caffeine on Physical Performance of Ice Hockey Players: A Cross-over Randomized Controlled Trial
To date, only one study has evaluated the effect of caffeine supplementation on athletic performance in ice hockey players finding a lack of ergogenic effect. This lack of effect is surprising as caffeine has been suggested to be an effective and safe nutritional supplement to improve physical performance in both trained and untrained individuals. Therefore, the aim of the present study is to evaluate the effect of acute caffeine ingestion (3mg/kg body mass). Thirteen elite adult ice-hockey male players will perform specific ice hockey performance tests in two separate days. On both occasions players will ingest 330 ml of water with lemon powertabs isostar® (86 kcal / 19g of carbohydrates) tablets, which will include in one of these days 3 mg/kg body mass of anhydrous caffeine. Players will perform a 35-m sprint, an agility test (Weave agility - slalom with puck), and a reaction test.
- Conditions
- Caffeine, Athletic Performance
- Being tested
- Caffeine, Placebo drink
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
CaffeineDietary supplement
Participants will ingest a drink with 3mg/kg of body weight mixed with carbohydrates
Placebo drinkDietary supplement
Participants will ingest the exact same drink without caffeine
| Study group | Role | What they receive |
|---|---|---|
| Caffeine | Experimental | Dietary Supplement: Caffeine supplementation Participants will ingest caffeine in liquid form (3mg/kg) with carbohydrates. Receives: Dietary Supplement: Caffeine |
| Control condition | Placebo comparator | Participants will ingest a drink of carbohydrates without caffeine Receives: Dietary Supplement: Placebo drink |
What is being measured
The primary outcome is the main question the study is designed to answer.
35m sprint time (Seconds)
Time that participants take to skate 35 meters. Data will be collected with photoelectric cells
Measured: One day (one hour post caffeine consumption)
Agility test time (Seconds)
Time that participants take to perform an agility circuit. Data will be collected with photoelectric cells
Measured: One day (one hour post caffeine consumption)
Reaction test time (seconds)
Time that participants take to complete a reaction test circuit. Data will be collected with photoelectric cells.
Measured: One day (one hour post caffeine consumption)
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted27 Dec 2021
- Study start1 Mar 2021
- Primary completion30 Apr 2021
- Study completion30 May 2021
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for CaffeineStudies 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
- Model description
- Participants will be given a bottle with either caffeine and carbohydrates or just carbohydrates. All participants will complete ice-hockey specific athletic tests in both conditions.
- Masking
- Double blind
- Who is masked
- Participant, Investigator
- Enrolment
- 13 participants (actual)
Sponsor and investigators
- Lead sponsor
- Universidad de Zaragoza
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Alejandro Gómez Bruton, Universidad de Zaragoza
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT05170139
- Sponsor's protocol ID
- Caffeinehockey
- Acronym
- cafhoc
- Status last verified
- May 2023
- First submitted
- 9 Dec 2021
- Last updated
- 24 May 2023
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- Undecided
Study at a glance
From the registry record, last updated by the sponsor on 24 May 2023. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- The Effects of Caffeine on Physical Performance of Ice Hockey Players: A Cross-over Randomized Controlled Trial
- ClinicalTrials.gov ID
- NCT05170139
- Acronym / sponsor ID
- cafhoc / Caffeinehockey
- Conditions
- Caffeine, Athletic Performance
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 13 participants (actual)
- Lead sponsor
- Universidad de ZaragozaUniversity, hospital or other
- Study start
- 1 Mar 2021 (actual)
- Primary completion
- 30 Apr 2021 (actual)
- Study completion
- 30 May 2021 (actual)
- First posted
- 27 Dec 2021 (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.
To date, only one study has evaluated the effect of caffeine supplementation on athletic performance in ice hockey players finding a lack of ergogenic effect. This lack of effect is surprising as caffeine has been suggested to be an effective and safe nutritional supplement to improve physical performance in both trained and untrained individuals. Therefore, the aim of the present study is to evaluate the effect of acute caffeine ingestion (3mg/kg body mass). Thirteen elite adult ice-hockey male players will perform specific ice hockey performance tests in two separate days. On both occasions players will ingest 330 ml of water with lemon powertabs isostar® (86 kcal / 19g of carbohydrates) tablets, which will include in one of these days 3 mg/kg body mass of anhydrous caffeine. Players will perform a 35-m sprint, an agility test (Weave agility - slalom with puck), and a reaction test.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Crossover
- Masking
- Double blind (participant, investigator)
- Number of arms
- 2
- Model description
- Participants will be given a bottle with either caffeine and carbohydrates or just carbohydrates. All participants will complete ice-hockey specific athletic tests in both conditions.
| Arm | Type | Receives |
|---|---|---|
| Caffeine | Experimental | Dietary Supplement: CaffeineDietary Supplement: Caffeine supplementation Participants will ingest caffeine in liquid form (3mg/kg) with carbohydrates. |
| Control condition | Placebo comparator | Dietary Supplement: Placebo drinkParticipants will ingest a drink of carbohydrates without caffeine |
Who may qualify
- Ages
- 18 to 35 years
- Sex
- Male only
- Healthy volunteers
- Accepted
- Age groups
- Adult
Key inclusion criteria (3 listed)
- Over 18 years,
- Male
- Play in the Spanish ice hockey first division.
Key exclusion criteria (2 listed)
- Participants taking drugs containing ephedrine or antibiotics.
- Having suffered a musculoskeletal injury in the 3 months prior to the tests.
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 |
|---|---|---|
| CaffeineParticipants will ingest a drink with 3mg/kg of body weight mixed with carbohydrates | Dietary supplement | Caffeine |
| Placebo drinkParticipants will ingest the exact same drink without caffeine | Dietary supplement | Control condition |
Primary outcome
35m sprint time (Seconds)
Time frame: One day (one hour post caffeine consumption)
Time that participants take to skate 35 meters. Data will be collected with photoelectric cells
Agility test time (Seconds)
Time frame: One day (one hour post caffeine consumption)
Time that participants take to perform an agility circuit. Data will be collected with photoelectric cells
Reaction test time (seconds)
Time frame: One day (one hour post caffeine consumption)
Time that participants take to complete a reaction test circuit. Data will be collected with photoelectric cells.
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 24 May 2023.
- Individual participant dataSharing planned: Undecided
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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.
The record lists no contact. Use the official record to reach the sponsor.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Caffeine in people with Caffeine and Athletic Performance, run by Universidad de Zaragoza at 1 site in Spain.
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 3 inclusion and 2 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: finished, as of the sponsor's last update on 24 May 2023. 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 Spain. 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. Some participants in this study may receive a placebo. 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?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
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?
35m sprint time (Seconds) (time frame: One day (one hour post caffeine consumption)). 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 24 May 2023.