NCT05230303

Caffeine Supplementation, Resistance Training and Blood Antioxidant Status

Acute Effects of Caffeine Supplementation on Resistance Training Volume and Blood Antioxidant Status in Resitance Trained Men

• Status: Completed
• Phase: N/A
• Study type: Interventional
• Enrollment: 15 (actual)
• Sponsor: The Jerzy Kukuczka Academy of Physical Education in Katowice · Academic / Other
• Sex: Male
• Age: 18 Years – 45 Years
• Healthy volunteers: Accepted

Summary

The purpose of this study is to verify the effect of acute caffeine intake on resistance training volume and blood antioxidant status, in a randomised, double-blind, placebo-controlled crossover trial.

Detailed description

Caffeine is one of the most commonly consumed psychoactive substances in the world. Several previous studies confirmed that caffeine improves several aspects of exercise performance, including resistance training outcomes. Interestingly, caffeine and its catabolic products, theobromine and xanthine, exhibit antioxidant and prooxidant properties. Additionally, resistance training promotes the generation of reactive oxygen species, which are important for the cellular adaptation process. Hovewer, to the best of our knowledge, there is no information as to how caffeine combined with resistance training affects blood antioxidant status. Therefore, the aim of this study was to examine acute effects of caffeine supplementation on resistance training volume and blood antioxidant status in resistance trained men.

Conditions

• Caffeine

Interventions

Type	Name	Description
DIETARY_SUPPLEMENT	Caffeine supplementation	Two identical experimental sessions with a one-week interval between sessions (to allow complete recovery and ensure substance wash-out) will be taken. During the experimental sessions, participants will ingest caffeine in dose of 3 mg/kg of body mass. Caffeine will be provided in capsules containing the individual amount of caffeine and will be administered orally 60 min before the onset of the exercise protocol.
DIETARY_SUPPLEMENT	Placebo treatment	The experimental procedure for each particpant will include placebo supplementation. The manufacturer of the caffeine capsules will also prepare identical placebo capsules filled out with a microcrystalline cellulose. Placebo will be administered orally 60 min before the onset of the exercise protocol.

Timeline

• Start date: 2022-01-12
• Primary completion: 2023-01-31
• Completion: 2023-01-31
• First posted: 2022-02-08
• Last updated: 2023-03-10

Locations

1 site across 1 country: Poland