Introduction: Beta-aniline supplementation may enhance the performance characteristics of the dipeptide carnosine muscle tissue which is called. The intramuscular hydrogen ion acts as a buffer. The other hand one of the two amino acid beta-aniline carnosine in muscle protein build. So the aim of this study was to investigate the effect of four-week beta-aniline supplementation on muscle strength and endurance, aerobic capacity, anaerobic and blood lactate levels were sprinters.
Methodology: A quasi-experimental method with two groups and placebo supplements. The study population consisted of Guilan sprinters who competed in national and provincial officials were earned. 20 of the sprinters, as samples were selected and were randomly divided into two groups. The test sequence based on the recommendations of the American College of Sports Medicine was done.So after written informed consent, height and weight were measured. At the first day without lactic anaerobic power, the second day of muscular endurance, muscular strength on the third day, On the fourth day, along with measurement of blood lactate and lactic anaerobic power and aerobic capacity was measured on the fifth day. After this step, the separation of beta-alanine and placebo groups (dextrose) per day in three time and each time was consumed 2 grams and 6 grams daily total, after four weeks of supplementation, such as pre-test and post-test in accordance with the sequence test. Then to extract and compare the results of both groups, t-test was used.
Results: The results showed that four weeks of beta-alanine significantly increased aerobic capacity and anaerobic power is lactic sprinters. But the lactic anaerobic power, muscle strength, muscle endurance, and blood lactate levels sprinters had no significant effect.
Discussion: The results can be inferred that taking this supplement raises muscle buffering capacity, the sprinters; however that lower blood lactate levels after supplementation did not register. But to be aerobic and anaerobic were high, so the recommended runners from beta-alanine with training to improve their athletic performance.