Solomon TekaTesfahun Hailu2026-10-132026-10-132017-08-01https://etd.aau.edu.et/handle/123456789/9119The study was conducted to investigate the effect of teaching aerobic exercise on performance related physical fitness components of students: the case of Uraga preparatory school in Guji zone, Oromia region. The research design was quasi-experimental with pre-post test none equivalent design. 63 students from Uraga preparatory school were selected as study subjects and their age range were16-19 years. 30 students were under experimental group and the remaining 33 students were under control group. Students in the experimental group were participated in low, moderate and high intensity aerobic exercise for 12 consecutive weeks, i.e.3 days per week 40 minute duration per day. Pre and post training tests were conducted on the selected four components of skill related physical fitness variables. The data collected from the study subject was analyzed using SPSS version 20.0 software. The data pertaining to agility, balance, power and speed as a component of performance related component were analyzed by paired sample ‘t’ test to determine the difference between initial and final mean for participant. And also to compare the difference between experimental and control group the independent t-test was computed. The significance value was checked at p-value < 0.05. The mean difference between the post and pre test results of the four performance related fitness components was significant in experimental groups but this difference is not significant in control groups. This shows that the effect of aerobic exercises on the improvement of performance related fitness components. There is a significant mean difference between post and pre test results of agility, balance, power and speed in experimental groups but there is no significant mean difference in control groups. This shows that the positive effect of aerobic exercises in each selected skill related fitness components. Based on this finding, it can be conclude that teaching aerobic exercises for more than 12 weeks has a significance effect on the improvement of skill related fitness components. According to the research finding aerobic exercises have a positive effect on agility, balance, power and speed. So Students, athletes and other sport men's, who want to improve skill related fitness components focused more on aerobic exercises than other activities.enAerobic exerciseskill related fitness componentsphysical fitnessfitnessAgilityPowerThesis