Clinical trial NCT06440343: Effects of Acute Carbohydrate Intake Intra-training in Crosstraining
Official title: Effects of Acute Carbohydrate Intake Intra-training in Crosstraining Athletes: a Randomized, Placebo-controlled Crossover Study
Study type: INTERVENTIONAL
Overall status: COMPLETED
Phase: NA
Conditions: Recovery
Keywords: Sports drink
performance
concurrent exercise
nutrition
recovery
Lead sponsor: Universidad de Granada
Sponsor class: OTHER
First posted: 2024-06-03
Enrollment: 25
Sex: MALE
Minimum age (years): 18
Maximum age (years): 35
Standard ages: ADULT
Accepts healthy volunteers: yes
Allocation: RANDOMIZED
Intervention model: CROSSOVER
Primary purpose: OTHER

Brief 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.

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.

Eligibility criteria: Inclusion Criteria:

* 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.

Exclusion Criteria:

* 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).

Primary outcomes:
measure: Exercise-induced muscle damage and recovery measured through the countermovement jump
timeFrame: 1 hour 30 minutes
measure: Exercise-induced muscle damage and recovery through the DOMS scale
timeFrame: 1 hour 30 minutes
Secondary outcomes:
measure: Capillar lactate levels
timeFrame: 1 hour 30 minutes
measure: Capilar glucose levels
timeFrame: 1 hour 30 minutes
measure: Subjective fatigue throughe the RPE scale
timeFrame: 1 hour 30 minutes
measure: Feeling sensations
timeFrame: 1 hour 30 minutes
measure: Performance: Weight used in the crosstraining session
timeFrame: 1 hour 30 minutes
measure: Performance: Repetitions performed in the crosstraining session
timeFrame: 1 hour 30 minutes
measure: Performance: Rounds performed in the crosstraining session
timeFrame: 1 hour 30 minutes
Other outcomes:
Locations:
city: Granada
country: Spain
facility: University of Granada
Study officials:
References: