The role of a warm-up in injury prevention is vital as it prepares the body for physical activity. A proper warm-up increases core temperature, enhances blood flow to muscles, and improves joint mobility, reducing the risk of strains and other injuries. By gradually increasing intensity, it helps the body adapt to upcoming exertion. Additionally, mental focus is sharpened during this time, preparing individuals for their workouts. A well-structured warm-up routine ultimately contributes to safer and more effective performance in physical activities.