Fatigue
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: Healthy; normal-weight men; mountain-bike riders; stable body weight over the past three months; regular caffeine users;age between 20 and 40 years old; non-smokers; keep alcohol consumption below seven units / week; experienced cyclists or triathletes (at least 1 year of training) with regular training, maintaining a total of at least 150 km of cycling training per week, with at least 50 km on track.
Exclusion criteria
Exclusion criteria: Individuals who have consumed more than 500 mg of caffeine per day in the last month (~ 5 cups of coffee or tea, cola drinks or caffeine pills); medical condition; food intolerances or allergies;food supplement (except protein, carbohydrate and caffeine); drug treatment that interferes with the test results;those who do not agree with the informed consent
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Time to exhaustion (minutes) with an increase of 5 % | — |
Secondary
| Measure | Time frame |
|---|---|
| A reduction or maintenance of the subjective perception of effort is expected, measured by the Borg graduated scale (6 - 20) | — |
Countries
Brazil
Contacts
Universidade de Brasília