Effects of Acute Carbohydrate Intake Intra-training in Crosstraining

NCT ID: NCT06440343

Last Updated: 2024-10-03

Basic Information

• Recruitment Status: COMPLETED
• Clinical Phase: NA
• Total Enrollment: 25 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2024-05-01
• Study Completion Date: 2024-09-01

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.

Conditions

Recovery

Study Design

• Allocation Method: RANDOMIZED
• Intervention Model: CROSSOVER
• Primary Study Purpose: OTHER
• Blinding Strategy: QUADRUPLE

Study Groups

Carbohydrates

60g of maltodextrin + fructose, 2:1 ratio

Group Type: EXPERIMENTAL

Carbohydrates

Intervention Type: DIETARY_SUPPLEMENT

60g of maltodextrin + fructose, 2:1 ratio

Placebo

Preparation of colorants, sweeteners, aromas and acidulants

Group Type: PLACEBO_COMPARATOR

Placebo

Intervention Type: DIETARY_SUPPLEMENT

Placebo

Interventions

Carbohydrates

60g of maltodextrin + fructose, 2:1 ratio

Intervention Type: DIETARY_SUPPLEMENT

Placebo

Placebo

Intervention Type: DIETARY_SUPPLEMENT

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).

• Minimum Eligible Age: 18 Years
• Maximum Eligible Age: 35 Years
• Eligible Sex: MALE
• Accepts Healthy Volunteers: Yes

Sponsors

Universidad de Granada

OTHER

Sponsor Role: lead

Responsible Party

Lucas Jurado-Fasoli

Principal Investigator

Responsibility Role: PRINCIPAL_INVESTIGATOR

Locations

University of Granada

Granada, , Spain

Countries

Spain

References

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.

Reference Type: DERIVED

PMID: 39671024 (View on PubMed)

Other Identifiers

CROSSCARB

Identifier Type: -

Identifier Source: org_study_id