Coffee Can Make People More Resistant Tired At Sports

Jakarta, coffee may be able to motivate many 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.

A cup of coffee before exercise can improve performance, especially in endurance sports like distance running and cycling.

Caffeine has been shown to increase the amount of fatty acids that circulate in the bloodstream. Thus allows one to improve its performance because the muscles can absorb and burn fat for fuel and store carbohydrates until the exercise is completed.

Caffeine was considered legal under the rules of the International Olympic Committee.

In an examination of research has been conducted on urine levels of more than two-thirds of the approximately 20,680 Olympic athletes. The results showed the highest use of caffeine is between Triathletes, athletes bike and rower.

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 England has asked 13 healthy young men to repeat the standard weight training exercise on several occasions. One hour before a set of exercises, participants consume sugar-free energy drinks that contain caffeine. One hour before the other set, they drink the same drink, but without caffeine.

Then the participants lifting, pressing and squatting every workout until they are exhausted. The result, fatigue got longer for participants who consume caffeine.

"Basically we found that with a caffeinated beverage, the person feels more able to conduct business. When consuming a caffeinated beverage, the study participants are better prepared psychologically to do the exercise again soon," said Dr. Michael Duncan, a senior lecturer in sports science at the University of Exeter in England.

"But, how caffeine affects the physiology and psychology of weight lifters are not fully understood. In contrast to endurance exercise, increased fat in the blood will not provide much benefit in this type of weight training," continued Dr. Duncan as reported from TheNewYorkTimes, Friday (16/12/2011).

Caffeine antagonizes adenosine thinks is, that is a substance formed in the muscles during exercise and blunt the force of contraction. More and more adenosine in the muscle, the power generated will be reduced. Caffeine reduces the levels of adenosine, which then allows a more powerful muscle contractions and delay fatigue.

In addition to affecting muscle, caffeine seems to also have a striking effect on the central nervous system and on 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 the previous caffeine compared with those not consume 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 unwanted side effects, such as high blood pressure or anxiety," says Magni Mohr, an exercise physiologist who is affiliated with the University of Exeter and the University of Copenhagen, Denmark.