Study of the use of caffeine in performance in cyclists.

Not Applicable

• Conditions: Muscle Fatigue; G11.427.550

• Registration Number: RBR-5745nv
• Lead Sponsor: niversidade Federal do Rio de Janeiro (UFRJ-Campus Macaé)

Brief Summary

Not available

Detailed Description

Not available

Study Timeline

• Results First Posted: 1900-01-01
• Study Start: 2019-04-12
• Last Update Posted: 29 May 2023

Recruitment & Eligibility

• Status: Recruitment completed
• Sex: Male
• Target Recruitment: Not specified

Inclusion Criteria

Minimum experience of two years in the modality and to have been classified among the 10 first places in the categories of the tests realized in the state of Rio de Janeiro. Training frequency of at least 3 x per week including sessions of technical and physical training. Do not be users of anabolic steroids. Athletes consuming caffeine amounts ?300 mg.day (Fit et al., 2013).

Exclusion Criteria

Hypertensive athletes and those who present nausea, gastritis and osteomioarticular lesions will be excluded during the experiment.

Study & Design

• Study Type: Intervention
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
Mean heart rate difference (analyzed by heart rate, ventilatory parameters) and output power (cycle on the cycle ergometer, athletes using caffeine or placebo).

Secondary Outcome Measures

Name	Time	Method
Increase (10%) in blood lactate concentration, as measured by laboratory analysis after caffeine intervention and placebo.