None listed
Conditions
Brief summary
The aim of the study will be to investigate the effects of caffeine (3 mg/kg 60 min pre-exercise) on vertical jump performance, movement velocity in resistance exercise, muscular endurance, and power output. Additionally, the aim is to explore if the inter-individual variation in responses to caffeine ingestion influenced by variations in genotype. The study hypothesis is that individuals classified as AA genotype will experience greater improvements in exercise performance following caffeine ingestion than those with AC and CC genotypes.
Interventions
Caffeine supplementation.
Dose: 3 mg per kg of body weight
The duration of administration: only on one occasion.
Mode of administration: oral tablet.
Wash out period between the caffeine and placebo conditions is from 4 to 7 days.
The CYP1A2 genotype will be assessed using a buccal swab sample collected before the caffeine and placebo conditions.
Sponsors
Victoria University
Study design
Allocation
Randomised controlled trial
Intervention model
Crossover
Primary purpose
Treatment
Masking
Blinded (masking used) (Subject, Caregiver, Outcomes Assessor)
Eligibility
Sex/Gender
Male
Age
18 Years to 40 Years
Healthy volunteers
Yes
Inclusion criteria
The sample size will consist of resistance-trained men. Resistance-trained men will be defined as having a minimum of 6 months of resistance training experience with a minimum weekly training frequency of two times on most weeks.
Exclusion criteria
The exclusion criteria will be: (1) current smoker; (2) prior or current use of anabolic steroids; and (3) existence of health limitations.
Outcome results
None listed