The impact of crossfit on some of physiological variables the amongst participants in the fitness canters in hebron govemorate

The purpose of this study was to identify the impact of the cross Fit training on some of the physiological variables, anaerobic power, anaerobic capacity, andmaximal oxygen consumption (VO2max) among the participants at Hebron’s fitness centers . A total of (38) male subjects wererandomly divided into two groups, experimental group (n=19) and control group (n=19).The researcher used the experimental method in the design of experimental and control groups, with the training program applied to the experimental group only. The statistical analysis showed that there were a Significant differences (0.05≤ α) between the pre and post measurement for the experimental group in favor of the post measurement. Anaerobic power has reached (35.5%) and the anaerobic capacity has reached (23.6%) while the (VO2 Max) has reached an average variation of (19.9%).While the results showed no statistically significant differences between the two measurements pre and post to the experimental group on variables (body mass index, basal metabolic rate, fat mass), BMI has reached (1.7%) and basic metabolic has reached (3.6%), and finally fat mass of grease has reached 1.6%. The results of the study showed significant differences (0.05≤ α) when performing the post measurement between the experimental and the control group which was in favor of the experimental group on (anaerobic power, anaerobic capacity and the (VO2 Max). The researcher has recommended applying cross fit training at all fitness centers. Key Word:Crossfit Training, Anaerobic Power, Anaerobic Cabacity, VO2 Max.