Research about “Kire” about Karate movement using wearable devices

Abstract

In this research, we aim to elucidate “Kire (Sharrpness)” in Karate movements using wearable devices. If we could understand important points in karate movement, it is considered for us useful for guidance and evalutation about Karare practice and competition.

In this paper, we verified the “Seiken-duki” (Fore fist punch), which is the basic movement of Karatedo. We uses three devices which can measure acceleration and angular velocity. In the experiment of this paper, we verified the motion of hand’s wrists and waist movement for a experienced player and a first time player.