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The Effect of a Single Intensive Resistance Exercise Protocol on the Hemolysis in Active Girls

The aim of this study was to describe the hematological variations and hemolysis after intensive resistance exercise in active girls. II healthy girls subjects volunteered to participate in this study. They drank 15 mil kg body wt at before night and in the morning of the experimental days .They completed three sets of 5 - 7 repetitions of six exercises at an intensity corresponding to 70-80% one repetition maximum (IRM). Venous blood samples were obtained before exercise, immediately after exercise and 24h of recovery and analyzed for MCV, RBC, HCT, HB and bilirubin. Plasma volume analyzed by using a hematocrit and hemogubin standard techniques. Statistical analyses were done using SPSS/Il.5 and Excel. The effect of exercise protocol was tested using ANOVA with repeated measures and LSD signed tests for comparisons before, immediately and 24 h after exercise protocol. Statistical significance was set at p<0.05. Results: RBC, HCT, HB and bilirubin increase significantly following resistance exercise (PSO/05), but MCV had not significant changes (p2:0/05). RBC, HCT, HB decrease and bilirubin increase 24h after resistance exercise but only HCT and bilirubin changes were significant. DISCUSSION & CONCLUSIONS: Intensive resistance exercise induces decrease in RBC, HCT, HB after 24h and increase in bilirubin immediately and 24h after exercise. These results show that hemolysis may happen after intensive resistance exercise in active girls.