The research, carried out by researchers at the University of Granada (UGR), calculated fat oxidation in tests aerobics which included fifteen men, with a median age of 32 years.
Before each exercise, explains Galileu, practiced four times at intervals of seven days, the volunteers consumed 3mg / kg of caffeine or a placebo, at two different times, namely: at 8 am and at 5 pm. However, factors such as, for example, the time elapsed since the last meal and activity physics, were accurately standardized across the group.
The tests included pedaling at a speed of 50W for three minutes, maintaining a pace between 60-100 rpm – corresponding to a “warm-up protocol”, so named by the researchers.
Subsequent increases of 25W, every three minutes, were administered on the effort load of the volunteers. Then they could rest for five minutes and drink Water, before starting one more time activity progressive effort.
According to the magazine Galileu, the collected data reiterates the power of caffeine as one of the substânces most effective ways to improve sports performance.
Regardless of the time of day, intake of substância notably increased the maximum fat oxidation rate (MFO) during the exercise. Compared to the morning shift, performance proved to be even greater during the afternoon: 10.7% versus 29%, respectively.
Additionally, the chemical compound caused an increase in the rates of Fatmax, this is the intensity of exercise that causes maximum fat oxidation and VO2max, the maximum volume of oxygen collected by the body in the atmosphere and transported to the muscles.
“The combination of acute caffeine intake and moderate intensity exercise in the afternoon seems to be the best scenario for individuals looking to increase the amount of fat burned during the activity aerobics continuous “, wrote the authors of the study.
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