## 4 Discussion
Differences among the groups can be explained by varying exercise intensity and focus--while the mix and kickboxing aerobics programs included high-intensity segments, step aerobics relied more on moderate intensity and movement coordination. Body composition analysis showed significant changes in reducing body fat percentage and increasing muscle mass in all groups. The greatest reduction in body fat percentage was recorded in the mix aerobics group (\(-11.58\%\)), followed by the kickboxing aerobics group (\(-9.60\%\)), and the smallest in the step aerobics group (\(-7.47\%\)). Furthermore, in these same groups, significant improvements were observed in the body mass index (BMI), where BMI decreased by \(-6.47\%\) in the mix group, \(-5.92\%\) in the kickboxing group, and \(-5.74\%\) in the step group, while muscle mass percentage after the experimental program showed the highest values in the mix aerobics group (\(+18.27\%\)), followed by the kickboxing aerobics group (\(+16.85\%\)), and the smallest in the step aerobics group (\(+11.57\%\)). All of this indicates the positive effects of these programs in reducing BMI and improving overall body composition. Similar findings were confirmed in the study by [PERSON] et al. [30], which showed that such forms of aerobic training can have a positive effect on body composition in young women. [PERSON] et al. [52] also showed that high-intensity aerobic training can result in greater reductions in body fat percentage compared to moderate-intensity training. Exercise, particularly aerobic training, effectively reduces visceral fat and improves body composition in individuals with excess body weight or obesity, which can significantly improve their cardiometabolic health [53]. [PERSON] et al. [54] determined that all forms of exercise are more effective than inactivity, with aerobic training contributing the most to improving fitness and reducing body weight, while low-load training has the greatest effect on reducing body fat in obese women. Our results further confirm these findings, highlighting the superior effects of high-intensity aerobic training (mix and kickboxing aerobics) over step aerobics, which proved more effective in improving coordination and endurance than in reducing body fat percentage. Regarding lipid profile, the results show significant positive changes in reducing triglycerides, total cholesterol, and LDL cholesterol, while simultaneously increasing HDL cholesterol. The greatest reduction in triglycerides was recorded in the mix aerobics group (\(-26.27\%\)), followed by the kickboxing aerobics group (\(-21.29\%\)), while the smallest reduction was observed in the step aerobics group (\(-15.48\%\)). The reduction in total cholesterol was most pronounced in the mix aerobics group (\(-18.12\%\)), step aerobics group (\(-15.32\%\)), and least in the kickboxing aerobics group (\(-14.33\%\)). A reduction in LDL was also noted in the mix aerobics group (\(-17.86\%\)), step aerobics group (\(-15.99\%\)), and least in the kickboxing aerobics group (\(-14.97\%\)). The positive impact of these programs was also reflected in HDL, where the mix aerobics group increased by (\(+25.11\%\)), the kickboxing aerobics group by (\(+21.79\%\)), and the step aerobics group by (\(+16.84\%\)). These results are consistent with studies by [PERSON] et al. [55], [PERSON] et al. [52], and [PERSON] et al. [56], which confirmed the positive impact of aerobic exercises on lipid profile, particularly through increasing HDL and reducing LDL cholesterol. Our results align with findings from [PERSON] et al. [20] and [PERSON] et al. [21], who confirmed that exercise affects the regulation of triglyceride in healthy individuals. Increased physical activity contributes to the improvement of health indicators, such as reduced blood pressure, decreased insulin resistance, and normalization of lipid profile [21; 57], as confirmed by our results regarding lipid profile. Furthermore, [PERSON] et al.