Sedentary lifestyles and academic pressures contribute to elevated rates of anxiety, depression, and stress among university students. This cross-sectional study evaluated the relationship between physical activity levels and mental health outcomes in 800 students from three universities. Data were collected using validated instruments, including the International Physical Activity Questionnaire (IPAQ) and the Depression Anxiety Stress Scales (DASS-21), alongside wearable activity trackers to objectively assess activity levels. Analysis revealed that students who engaged in at least 150 minutes of moderate-intensity exercise per week reported significantly lower anxiety scores (mean difference = 5.2, p<0.01) and depressive symptoms (mean difference = 3.8, p<0.05) compared to sedentary peers. Additional findings indicated that structured group exercises and recreational sports had a more pronounced effect on mental well-being than solitary physical activities. The results emphasize the potential of incorporating campus-wide physical activity initiatives, mental health awareness campaigns, and recreational programs to mitigate psychological distress and enhance academic performance among students.

Keywords:
Physical Activity, Mental Health, University Students, Stress Management, Public Health