Scientific Journal of

  Abstract

 Background and Objectives

 Hematological parameters are influenced by physical activities. The purpose of this study was to survey the response of hematological factors to a circuit resistance training program with different intensities in athlete male students. 

 Materials and Methods

 In this experimental study, 24 athlete male students (age, 24.46 ± 0.46 years weight, 75.58 ± 1 . 29 kg height, 177 . 25 ± 1.32 cm) took part in this study voluntarily. Subjects were randomly divided into three groups including three low, moderate and high intensities. Each group contained 8 people. Circuit resistance training program included ten stations, which took place in three sets with twenty seconds for each station. Subjects were asked to fast for 12 hours. Then, 10 ml blood samples pre and post exercise were taken from arm vena. All data were analyzed by using descriptive and inferential statistics (paired-samples t and ANOVA) through SPSS 16 software.

 Results

 Post exercise results showed a significant increase in the values of Hct and RBC in low intensity group, in Hct, RBC, Hb, and MCV in moderate intensity group, and in MCV, Hb, Hct, RBC, and WBC in high intensity group (p< 0.05) . Also, significant decrease was seen in the values of MCHC and PV in moderate intensity group and PV, MCHC, and MCH in high intensity group (p< 0.05).

 Conclusions

 Results showed circuit resistance training with progressively low, moderate and high intensities could specifically influence hematologic factors. Hence, it is recommended to coaches to consider intensity in designing circuit resistance training programs for athletes.