Effects of a 16-Week Aerobic Training Program on Obesity-Related Morphological Parameters Among University Students in Algeria

Obesity is a chronic and escalating global health concern, including in Algeria, where prevalence rates are rising, particularly among youth. Physical inactivity and poor dietary habits are among the primary contributing factors. This study aimed to evaluate the effectiveness of a structured 16-week aerobic training program on reducing obesity-related morphological parameters in male university students at the University of Biskra, Algeria. A sample of 45 obese male students (BMI ≥30 kg/m²) participated in a 16-week intervention comprising four weekly aerobic sessions (fast walking, jogging, swimming, and cycling), lasting 50–70 minutes each. Anthropometric and morphological variables—including body weight, body mass index (BMI), fat mass, body fat percentage (BFP), waist circumference, and conicity index—were measured pre- and post-intervention. Nutritional guidance was also provided to all participants. Statistically significant reductions were observed across all measured variables. Body weight decreased from 95.9 ± 1.66 kg to 73.8 ± 1.02 kg (p < 0.001), BMI from 31.75 ± 1.05 to 24.53 ± 0.56 kg/m² (p < 0.001), fat mass from 29.02 ± 1.22 kg to 12.01 ± 1.02 kg (p < 0.001), and BFP from 30.26% to 16.25%. Waist circumference dropped by 19 cm (from 105 to 86 cm), and conicity index decreased from 1.31 to 1.07. The 16-week aerobic training program significantly improved body composition and reduced obesity indicators among the participants. These findings affirm the critical role of sustained, structured aerobic exercise—combined with dietary modifications—in obesity management among young adults. Future studies are recommended to replicate these findings in broader populations and explore long-term adherence and outcomes. Keywords: Obesity, Aerobic Training, Body Mass Index, Fat Mass, Body Fat Percentage, University Students, Algeria.