Establishing a warm-up routine is significant because it prepares the body for physical activity by gradually increasing heart rate and circulation, thereby enhancing blood flow to muscles. A proper warm-up helps reduce the risk of injury by loosening joints and muscles, making them more pliable. It also improves mental focus and readiness for exercise, allowing athletes to perform at their best. Engaging in dynamic stretching or light aerobic activity during the warm-up can further boost performance by activating the neuromuscular system. Skipping warm-ups, on the other hand, can lead to a higher likelihood of strains and decreased overall effectiveness of the workout session.