تأثیر مکملیاری ال-سیترولین بر نیتریک اکساید و الکتات خون زنان جوان پس از فعالیت ورزشی بیشینه.

Introduction: The consumption of sport supplements and their effects on the performance of athletes needs to be evaluated. The purpose of this study was to determine the effects of L-citrulline supplementation on nitric oxide (NO) and blood lactate in young women after a maximal exercise session. Materials and Methods: The research method was quasi-experimental with double blind design. After filling out the health questionnaire, 24 voluntary inactive young women with body mass index less than 25 kg/m2 were randomly divided into two groups of supplement (n=12) and placebo (n=12). Subjects referred to the laboratory twice; in the first session, the first blood sample was taken immediately after the exercise protocol. After 5 minutes of warm-up, they performed the Bruce treadmill test protocol up to the time to exhaustion. Then the supplement group consumed 6 gr daily Lcitrulline powder. The second session was performed one week later in the same conditions as the first session. Immediately after the test, time to exhaustion was recorded, blood samples collected and lactate and NO plasma levels were measured. Data were analyzed by variance with repeated measures (2×2) with significant level of P<0.05. Results: The results showed that there was no significant difference between time to exhaustion, plasma levels of lactate and NO between the two groups (placebo and supplement) in two sessions. Conclusion: It seems that acute supplementation of L-citrulline has no effect on nitric NO and blood lactate in young women after a maximal exercise session. [ABSTRACT FROM AUTHOR]