Glutamine supplementation did not revert exercise immunossupression
Abstract
This brief review describes some studies demonstrating that upper respiratory tract infection (U.T.R.I.) is more common in athletes, particularly in periods of intense training and overtraining. The high incidence of the U.R.T.I. among these athletes also presents a association between the chronic exercise training and a reduction in the immune function. Some immune parameters, as the number and activity of thelymphocytes and the natural killer cells), are alterated after endurance exercise. Reduced plasma glutamine levels also have been described in overtraining athletes of different sports. However, although there is clinical evidence supporting the need for exogenous glutamine in the immune system function in critically ill patients, the effectiveness of the glutamine supplementation in endurance athletes is still controversial. This is due to the insufficient evidence that the recuperation of the glutamine plasma levels after exercise is able to reduce infections. Future studies will clarify the role ofthe glutamine or other ergogenic aids in the maintenance and recovery of the athlete’s immune function.
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