NCT06606639

Reproducibility of Acute Caffeine Effect

Reproducibility of the Acute Effect of Caffeine on Energy Metabolism and Muscular Strength, Power and Endurance Performance

• Status: Completed
• Phase: N/A
• Study type: Interventional
• Enrollment: 48 (actual)
• Sponsor: University of Alcala · Academic / Other
• Sex: All
• Age: 18 Years – 35 Years
• Healthy volunteers: Accepted

Summary

Introduction: Various studies have evaluated and verified the ergogenic effect of acute caffeine intake on sports performance, specifically on strength and power performance. However, all experimental investigations designed so far have been based on the comparison of the \"caffeine\" and \"placebo\" conditions in a single trial, not considering the reproducibility and variability of caffeine in multiple trials. Objectives: The present study aims to evaluate the reproducibility and replicability of the acute effect of caffeine intake on energy metabolism and the muscular production of force, power and endurance, according to sex (men vs women) and type of exercise ( bench press vs squat).

Conditions

• Caffeine and Resistance Exercise

Interventions

Type	Name	Description
DIETARY_SUPPLEMENT	Caffeine	acute caffeine intake (3 mg/kg)
DIETARY_SUPPLEMENT	Placebo	Acute placebo intake (3 mg/kg of maltodextrin)

Timeline

• Start date: 2024-01-08
• Primary completion: 2024-05-22
• Completion: 2024-05-22
• First posted: 2024-09-23
• Last updated: 2025-05-25

Locations

1 site across 1 country: Spain