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Caffeine Increases Maximal Fat Oxidation During Exercise in Endurance-trained Men: is There a Diurnal Variation

NCT04320446 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 15

Last updated 2020-03-25

No results posted yet for this study

Summary

Maximal fat oxidation during exercise (MFO) and the intensity of exercise that elicits MFO (Fatmax) has been recognized as potential determinants of endurance performance.

The purpose of this study was to determine the possible interaction between the effects of diurnal variation (morning vs. afternoon) and caffeine ingestion on MFO, Fatmax and VO2 max in endurance-trained men. Specifically, the investigators sought to elucidate whether the stimulant actions of caffeine could reverse the decrements of MFO and Fatmax observed in the morning.

Conditions

  • Energy Metabolism
  • Athletic Performance

Interventions

BEHAVIORAL

Test in the morning

The exercise test was performed between 8 a.m and 11 a.m

BEHAVIORAL

Test in the afternoon

The exercise test was performed between 5 p.m. and 8 p.m.a

Sponsors & Collaborators

  • Universidad de Granada

    lead OTHER

Principal Investigators

  • Jonatan Ruiz Ruiz, Dr. · Universidad de Granada

Study Design

Allocation
RANDOMIZED
Purpose
OTHER
Masking
TRIPLE
Model
CROSSOVER

Eligibility

Min Age
18 Years
Max Age
40 Years
Sex
MALE
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2019-06-01
Primary Completion
2019-11-30
Completion
2019-11-30

Countries

  • Spain

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT04320446 on ClinicalTrials.gov