Abstract: In recent years, the researches on core strength and core stability are prevalent in the field of domestic competitive sports. These concepts are literally translated into Chinese. By researching a large number of literatures both at home and abroad, this paper, by interviewing the relevant experts, finds that the Chinese equivalences of the terms of "core", "core strength" and "core stability" are not accurate. Therefore, the paper suggests a new understanding and re-definition of the terms of "core", "core strength" and "core stability", hoping to provide a valuable theory to guide strength training for athletes.

Key words: core, center, strength