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Coffee may be able to motivate a lot of people who will go to the gym. One of several new studies show caffeine can allow a person to perform and enjoy the sport better.
Cup of coffee before exercise can improve performance, especially in endurance sports such as distance running and cycling.
Caffeine has been proven to increase the amount of fatty acids circulating in the bloodstream. Thus allowing one to improve its performance because the muscles can absorb and burn fat for fuel and storing carbs until the exercise is completed.
Caffeine is also considered legal under the rules of the International Olympic Committee.
In a study has been carried out checks on the urine levels of more than two-thirds of the approximately 20.680 Olympic athletes. The results showed the highest use of caffeine is among triathletes, cyclists and rowers.
But whether caffeine can affect the performance of other sports, such as weight lifting or football, or basketball, is less clear.
Researchers from Coventry University in the UK has asked 13 healthy young men to repeat the standard weight training exercise on several occasions. One hour before a set of exercises, participants consuming sugar-free energy drinks that contain caffeine. One hour before the other set, they drink the same, but without the caffeine.
Then the participants lifting, pressing and squatting each exercise until they were exhausted. As a result, fatigue got longer for participants who consumed caffeine.
"Basically we found that caffeinated beverages, the person feels better able to do business. When consuming caffeinated beverages, the study participants are psychologically better prepared to immediately perform the exercise again," said Dr. Michael Duncan, a senior lecturer in sports science at the University of Exeter in England.
"However, how caffeine affects the physiology and psychology of weight lifter is not fully understood. In contrast to endurance sports, increased blood fats will not provide much benefit in this type of weight training," said Dr. Duncan as reported from TheNewYorkTimes.
Caffeine antagonizes adenosine thinks is, which is a substance formed in the muscle during exercise and blunts the force of contraction. The more adenosine in the muscles, the power generated will be reduced. Caffeine reduces adenosine levels, which then enables a stronger muscle contractions and delays fatigue.
In addition to affecting the muscles, caffeine seems to also have a striking effect on the central nervous system and in the parts of the brain involved in mood, alertness and fine motor coordination during exercise.
In one study, a soccer player dribbling, heading and kicking the ball more accurately if they were consuming caffeine compared with those not taking caffeine. The results of these studies have been published in The British Journal of Sports Medicine.
"However, we do not know the best dose of caffeine to provide performance benefits without the side effects are undesirable, such as high blood pressure or anxiety," said Magni Mohr, an exercise physiologist affiliated with the University of Exeter and the University of Copenhagen, Denmark.
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