Abstract:
Speed- endurance, muscular strength andspeed are components of physical fitness which plays
great role in a middle distance running. The primary purpose of this study was to evaluate the
effects of selected types of circuit training exercise on enhancing speed-endurance, muscular
strength and speed of Middle Distance Runners on Oromia Forest Wild Life Enterprise. The
study was conducted to improve speed –endurance,muscular strength and speed performances on
8 male athletes of Middle Distance Runners on OromiaForest Wild Life Enterprise. These eight
male athletes were assigned as one experimental group and their age ranges 18-21 years. All
subjects participated in selected circuit training for 8 weeks i.e., three days per week and 60
minutes duration per day. Pre-test and post training test were conducted on physical fitness
variables such as flying 30 meter test, standing broad jump and 400meter control tests. The data
collected from subjects were analyzed by paired simple t-test to determine the differences
between pre-test and post-test mean value results of the participants of the study. According to
the findings of the study, 400meter control tests 1.94625 mean differences. In standing broad
jump test.02500 meters increments and in flying 30 meter test .04500 mean differencesdata were
observed. Therefore, the results obtained from the study indicate that there were significant
improvements within, standing broad jump and 400meter control tests, while not in flying 30
meter test.