RecoveryNCT06440343
Effects of Acute Carbohydrate Intake Intra-training in Crosstraining
A study testing Carbohydrates in people with Recovery, run by Universidad de Granada at 1 site in Spain.
Trial summary
This study aims to investigate the effect of acute carbohydrate intake during a crosstraining session on exercise-induced muscle damage and the recovery of crosstraining athletes. 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
- Recovery
- What is being tested?
- Carbohydrates
- Could I receive a placebo?
- Yes, some participants may receive a placebo
- How many people
- 25 participants
- Where
- 1 siteSpain
- Study dates
- 1 May 2024to 1 Sep 2024
- 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
- Age: 18-35 years.
- Body mass index: 18.5-30 kg/m2.
- Ability to understand the instructions, objectives, and study protocol.
- Minimum of 3 years of experience in crosstraining, with at least 6 hours of weekly training over the past 3 months.
- Resident on the island of Tenerife.
Who cannot join
- History of a significant adverse cardiovascular event, renal insufficiency, cirrhosis, eating disorder, weight control surgical intervention, or type 2 diabetes mellitus.
- Any chronic condition in which the intake of nutritional supplements is not advisable.
- Any condition that, in the investigator's judgment, would impair the ability to participate in the study or represent a personal risk to the participant.
- Use of medications that may affect the study results.
- Unstable body weight for 3 months prior to the start of the study (> 4 kg loss or gain in - weight).
- Active tobacco abuse or illicit drug use, or history of treatment for alcohol abuse.
- On a special diet or prescribed for other reasons (e.g., celiac disease).
Trial locations and contacts
1 site in 1 country.
About this study
Official title: Effects of Acute Carbohydrate Intake Intra-training in Crosstraining Athletes: a Randomized, Placebo-controlled Crossover Study
This study aims to investigate the effect of acute carbohydrate intake during a crosstraining session on exercise-induced muscle damage and the recovery of crosstraining athletes.
Read the detailed description
Carbohydrate intake during exercise could decrease the subjective perceived exertion and promote recovery during high-intensity and intermittent exercises such as crosstraining. Nevertheless, despite extensive research on carbohydrate ingestion during exercise across different sports disciplines, its effects have not been investigated in crosstraining sessions.
23 male trained crosstraining athletes will ingest carbohydrates (60g of maltodextrin + fructose, 2:1 ratio) or placebo during a one-and-a-half-hour crosstraining session. The session will consist of a warm-up, a weightlifting part, a strength part, a WOD, and an AMRAP. The rating of perceived exertion (RPE) will be assessed using the validated Borg scale at the beginning of the session, after each part of the training, and at the end of the session. DOMS will be assessed using a visual analog scale at 24 and 48 hours after the crosstraining session.
- Conditions
- Recovery
- Being tested
- Carbohydrates, Placebo
- Keywords
- Sports drink, performance, concurrent exercise, nutrition, recovery
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
CarbohydratesDietary supplement
60g of maltodextrin + fructose, 2:1 ratio
PlaceboDietary supplement
Placebo
| Study group | Role | What they receive |
|---|---|---|
| Carbohydrates | Experimental | 60g of maltodextrin + fructose, 2:1 ratio Receives: Dietary Supplement: Carbohydrates |
| Placebo | Placebo comparator | Preparation of colorants, sweeteners, aromas and acidulants Receives: Dietary Supplement: Placebo |
What is being measured
The primary outcome is the main question the study is designed to answer.
Exercise-induced muscle damage and recovery measured through the countermovement jump
Countermovement jump height
Measured: 1 hour 30 minutes
Exercise-induced muscle damage and recovery through the DOMS scale
Delayed-onset muscle soreness (DOMS) scale (0-10 arbitrary units)
Measured: 1 hour 30 minutes
Secondary outcomes (7)
Capillar lactate levels
Capillar lactate levels
Measured: 1 hour 30 minutes
Capilar glucose levels
Capilar glucose levels
Measured: 1 hour 30 minutes
Subjective fatigue throughe the RPE scale
Rate of perceived exertion scale
Measured: 1 hour 30 minutes
Feeling sensations
Feeling scale
Measured: 1 hour 30 minutes
Performance: Weight used in the crosstraining session
Weight used in the crosstraining session
Measured: 1 hour 30 minutes
Performance: Repetitions performed in the crosstraining session
Repetitions performed in the crosstraining session
Measured: 1 hour 30 minutes
Performance: Rounds performed in the crosstraining session
Rounds performed in the crosstraining session
Measured: 1 hour 30 minutes
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted3 Jun 2024
- Study start1 May 2024
- Primary completion1 Jun 2024
- Study completion1 Sep 2024
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (1)Papers the sponsor has linked to this study.
- Other trials for RecoveryStudies 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
- Other
- Allocation
- Randomised
- Intervention model
- Crossover
- Masking
- Quadruple blind
- Who is masked
- Participant, Care provider, Investigator, Outcomes assessor
- Enrolment
- 25 participants (actual)
Sponsor and investigators
- Lead sponsor
- Universidad de Granada
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Lucas Jurado-Fasoli, Universidad de Granada
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT06440343
- Sponsor's protocol ID
- CROSSCARB
- Status last verified
- Oct 2024
- First submitted
- 21 May 2024
- Last updated
- 3 Oct 2024
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- Undecided
Publications
Trivino AR, Diaz-Romero C, Martin-Olmedo JJ, Jimenez-Martinez P, Alix-Fages C, Cwiklinska M, Perez D, Jurado-Fasoli L. Acute effects of intra-training carbohydrate ingestion in CrossFit(R) trained adults: a randomized, triple-blind, placebo-controlled crossover trial. Eur J Appl Physiol. 2025 May;125(5):1337-1347. doi: 10.1007/s00421-024-05689-8. Epub 2024 Dec 13.
PubMed 39671024
Study at a glance
From the registry record, last updated by the sponsor on 3 Oct 2024. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Effects of Acute Carbohydrate Intake Intra-training in Crosstraining Athletes: a Randomized, Placebo-controlled Crossover Study
- ClinicalTrials.gov ID
- NCT06440343
- Acronym / sponsor ID
- CROSSCARB
- Conditions
- Recovery
- Keywords
- Sports drink, performance, concurrent exercise, nutrition, recovery
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 25 participants (actual)
- Lead sponsor
- Universidad de GranadaUniversity, hospital or other
- Study start
- 1 May 2024 (actual)
- Primary completion
- 1 Jun 2024 (actual)
- Study completion
- 1 Sep 2024 (actual)
- First posted
- 3 Jun 2024 (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.
This study aims to investigate the effect of acute carbohydrate intake during a crosstraining session on exercise-induced muscle damage and the recovery of crosstraining athletes.
Detailed description
Carbohydrate intake during exercise could decrease the subjective perceived exertion and promote recovery during high-intensity and intermittent exercises such as crosstraining. Nevertheless, despite extensive research on carbohydrate ingestion during exercise across different sports disciplines, its effects have not been investigated in crosstraining sessions.
23 male trained crosstraining athletes will ingest carbohydrates (60g of maltodextrin + fructose, 2:1 ratio) or placebo during a one-and-a-half-hour crosstraining session. The session will consist of a warm-up, a weightlifting part, a strength part, a WOD, and an AMRAP. The rating of perceived exertion (RPE) will be assessed using the validated Borg scale at the beginning of the session, after each part of the training, and at the end of the session. DOMS will be assessed using a visual analog scale at 24 and 48 hours after the crosstraining session.
Study design
- Primary purpose
- Other
- Allocation
- Randomised
- Intervention model
- Crossover
- Masking
- Quadruple blind (participant, care provider, investigator, outcomes assessor)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Carbohydrates | Experimental | Dietary Supplement: Carbohydrates60g of maltodextrin + fructose, 2:1 ratio |
| Placebo | Placebo comparator | Dietary Supplement: PlaceboPreparation of colorants, sweeteners, aromas and acidulants |
Who may qualify
- Ages
- 18 to 35 years
- Sex
- Male only
- Healthy volunteers
- Accepted
- Age groups
- Adult
Key inclusion criteria (5 listed)
- Age: 18-35 years.
- Body mass index: 18.5-30 kg/m2.
- Ability to understand the instructions, objectives, and study protocol.
- Minimum of 3 years of experience in crosstraining, with at least 6 hours of weekly training over the past 3 months.
- Resident on the island of Tenerife.
Key exclusion criteria (7 listed)
- History of a significant adverse cardiovascular event, renal insufficiency, cirrhosis, eating disorder, weight control surgical intervention, or type 2 diabetes mellitus.
- Any chronic condition in which the intake of nutritional supplements is not advisable.
- Any condition that, in the investigator's judgment, would impair the ability to participate in the study or represent a personal risk to the participant.
- Use of medications that may affect the study results.
- Unstable body weight for 3 months prior to the start of the study (> 4 kg loss or gain in - weight).
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 |
|---|---|---|
| Carbohydrates60g of maltodextrin + fructose, 2:1 ratio | Dietary supplement | Carbohydrates |
| PlaceboPlacebo | Dietary supplement | Placebo |
Primary outcome
Exercise-induced muscle damage and recovery measured through the countermovement jump
Time frame: 1 hour 30 minutes
Countermovement jump height
Exercise-induced muscle damage and recovery through the DOMS scale
Time frame: 1 hour 30 minutes
Delayed-onset muscle soreness (DOMS) scale (0-10 arbitrary units)
7 secondary outcomes
Capillar lactate levels
Time frame: 1 hour 30 minutes
Capilar glucose levels
Time frame: 1 hour 30 minutes
Subjective fatigue throughe the RPE scale
Time frame: 1 hour 30 minutes
Feeling sensations
Time frame: 1 hour 30 minutes
Performance: Weight used in the crosstraining session
Time frame: 1 hour 30 minutes
Performance: Repetitions performed in the crosstraining session
Time frame: 1 hour 30 minutes
Performance: Rounds performed in the crosstraining session
Time frame: 1 hour 30 minutes
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 3 Oct 2024.
- Derived from this study: PubMed 39671024Trivino AR, Diaz-Romero C, Martin-Olmedo JJ, Jimenez-Martinez P, Alix-Fages C, Cwiklinska M, Perez D, Jurado-Fasoli L. Acute effects of intra-training carbohydrate ingestion in CrossFit(R) trained adults: a randomized, triple-blind, placebo-controlled crossover trial. Eur J Appl Physiol. 2025 May;125(5):1337-1347. doi: 10.1007/s00421-024-05689-8. Epub 2024 Dec 13.
- 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 Carbohydrates in people with Recovery, run by Universidad de Granada 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 5 inclusion and 7 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 3 Oct 2024. 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?
Exercise-induced muscle damage and recovery measured through the countermovement jump (time frame: 1 hour 30 minutes). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT06440343, which also lists 1 linked publication.
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 3 Oct 2024.