Aerobic capacity is the capacity of large skeletal muscle groups to adapt to work by using energy obtained as a result of aerobic metabolism. VO2max is a good indicator of aerobic capacity and is considered to be an indicator of the physiological integration of pulmonary, cardiovascular and neuromuscular functions. Anaerobic capacity is the ability of the muscles to adapt to workouts in the form of very short duration, maximal and supramaximal physical activities. The aim of this study is to investigate the effects of aerobic and anaerobic training methods on aerobic and anaerobic capacity. 8 women (age; 18.12 ± 0.35 years, BMI; 17.62 ± 2.60kg / m2, PBF; 16.01 ± 6.15%) and 8 men (age; 18.50 ± 1.19 years, BMI; 20.16 ± 1.43kg / m2; PBF; 12.20 ± 3.96%) participated in this study. The volunteers were randomly divided into aerobic (4 female, 4 male) and anaerobic (4 female, 4 male) groups. Volunteers participated in a total of 24 training seasons, 3 days per week over 8 weeks. The training programs. Involved running on a treadmill in the range of 60-70% maxHR for 1 hour on each training day for the aerobic group. The anaerobic training program included maxHR 80-90% on the treadmill (2*100, 2*200, 2*300, 1*400, 2*300, 2*200, 2*100 sprints) for 1 hour per season. In order to determine the aerobic performance of the volunteers, a bicycle ergometer (Monark LC6 novo, Varberg, Sweden) was used with a portable gas analyzer (Cosmed K5, Italy). In order to determine the anaerobic performance, a bicycle ergometer (Monark 874 E, Varberg, Sweden), which was connected to a computer modified for the Wingate Anerobic Power Test (WAnT) and compatible with an appropriate piece of software, was used. The study was planned in accordance with a pre-test and post-test model. For statistical evaluation of the data obtained, descriptive statistical methods such as frequency (f), arithmetic mean (X), and standard deviation (SD) were used. A paired-samples t-test was used for the evaluation of the data obtained from pre-test and post-test measurements. Independent samples t-test was used for the determination of differences between the sexes. The results were evaluated at the 0.05 significance level. Based on the findings, anaerobic training was observed to cause an increase in all components of anaerobic capacity. Significant differences were found in the anaerobic capacity components. It was found that anaerobic training caused a high level of difference in terms of aerobic capacity values, and thus increased aerobic capacity. It was observed that aerobic training had a positive effect on anaerobic capacity, anaerobic power and the fatigue index. Although aerobic training results in an increase in aerobic capacity of approximately 4%, this increase was not significant.Keywords: aerobic capacity, anaerobic capacity, energy systems, physical fitness.