Purpose: Complex circuit exercises are valuable tools for enhancing the water polo players' skills; the aim of this study was to determine the effect of Complex circuit exercises on cd34+/cd45 stem cells, certain physical variables and composite Skillful Performances among water polo players.
Methods:Twenty water polo players were divided into two groups, The experimental group comprised of (10) water polo player in the age groups of 18-21 years from El Zohor club. The subjects in this group underwent a Complex circuit exercises program comprising of various weight and Plyometric exercises in addition to water exercises for a period of (2) months. The control group comprised of (10) water polo players as the same age for the experimental group. Parameters assessed the height, weight, power, strength, training age and Blood Sample were collected from an antecubital vein into vacuum tubes to measure the Cd34+/Cd45 Stem Cells. All subjects were free of any disorders known to affect performance, such as bone fractures, osteoporosis, diabetes and cardiovascular disease. The participants did not report use of any anti-seizure drugs, alcohol and cortoon consumption, neither smoking cigarette. And all participants were fully informed about the aims of the study, and gave their voluntary consent before participation. The measurement procedures were in agreement with the ethical human experimentation. All statistical analyses were calculated by the SPSS statistical package. The results are reported as means and standard deviations (SD). Differences between two groups were reported as mean difference ±95% confidence intervals (mean diff ± 95%). T test for samples was used to determine the differences in the parameters between the two groups. And Pearson correlations between all variables was used, the p < 0.05 was considered as statistically significant