Core is the English translation of red field. Taekwondo core exercise is to strengthen red field. The core is the torso of the body, excluding arms and legs, and the spine and large muscles are concentrated.
TaekwonBlockMedia Director Chang-Seop Shin (left) and Woo-Jin Chung (right), who signed a business agreement with the Taekwondo Times headquartersTaekwondo Times (Chairman Jung Woo-jin) and Taekwondo Block Media (CEO Han...