This study tried to determine the effect of 13 weeks of incremental endurance training on anemia. 15 professional female athletes (average exercise record of 3-5 years, age 17.1± 3.2 years, height 163±5.4 cm, weight 50±3.3 kg and BMI 20.2±1 .2) performed a protocol of endurance training four sessions a week, each session 90 minutes with an intensity of 65-90% maximal heart rate for 13 weeks. Variables included hemoglobin, mean corpuscular volume, hematocrit and total iron binding capacity. The participants' blood samples were gathered at rest 48 hours before the first training session and 48 hours after the last training session. The data were analyzed by dependent t-test and the results showed that endurance running training had no significant effect on athletic anemia and no significant difference was observed between pre and post laboratory tests in blood index (P>0.05).
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