Caffeine Supplementation, Resistance Training and Blood Antioxidant Status

The Jerzy Kukuczka Academy of Physical Education in Katowice

Status: Completed

Conditions: Caffeine

Treatments: Dietary Supplement: Placebo treatment; Dietary Supplement: Caffeine supplementation

Study type: Interventional

Funder types: Other

Identifiers

NCT05230303

01_2021

Details and patient eligibility

About

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.

Full 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.

Enrollment: 15 patients

Sex: Male

Ages: 18 to 45 years old

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

• written consent to participate,
• medical permission by physician
• "resistance-trained," defined as having a minimum of two years of resistance training experience
• minimum of 2 workout sessions per week in the last 6 months

Exclusion criteria

• neuromuscular or musculoskeletal disorders
• current injury
• using any medications, dietary supplements or ergogenic aids which could potentially affect the study outcomes
• a positive smoking status
• potential allergy to caffeine

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Crossover Assignment

Masking: Triple Blind

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15 participants in 2 patient groups, including a placebo group

Caffeine supplementation

Experimental group

Description:

Group taking 3 mg/kg of caffeine

Treatment:

Dietary Supplement: Caffeine supplementation

Placebo treatment

Placebo Comparator group

Description:

Group taking placebo

Treatment:

Dietary Supplement: Placebo treatment