It is not the intention of this short review to discuss the intricacies of the new concept of core stability and strength (core training)or to recommend significant core training. Instead, it aims to confirm the rationale, necessity, and effectiveness of core training, which is commonly used in athletic training. From the academic point of view, Bouisset (1991)initially indicated that stabilization of the pelvis and trunk facilitated safe and efficient movements of the extremities. Hodges and Richardson (1997 a, b)identified that abdominal muscle activity (of the rectus abdominis, oblique, and transverse abdominal muscles) occurs 30~100ms before lower limb activity, and hence, provides a stable base for lower limb movement that works to efficiently distribute forces and ensure optimal neuromuscular control. Since then, many researchers have reported that various core training and neuromuscular training exercises increase core stability, strength, endurance, and neuromuscular control, which is the best safeguard against lower limb injuries during exercise or athletic events. Core training might be particularly useful for preventing lower limb injuries in female athletes because they have lower baseline levels of core strength and power than male athletes, but participate in the same sports. No firm consensus has yet been reached regarding whether core training and neuromuscular training directly improve performance in athletic events. This is because there are no standardized methods for evaluating the effectiveness of core training techniques. However, many researchers have recognized the need to focus on core training.