Load condition identification of a gymnastics horizontal bar apparatus using the tension balance of four cables

Abstract

Gymnastics are diversifying skills and advanced with the development of the competition. Therefore, the guidance and scoring of gymnastics are also difficult. In recent years, various sports aimed at improving the performance of players from scientific perspectives are increasing. Even in the gymnastics competition, a player's skeleton is estimated from a number of points with three-dimensional coordinate data in measurement using Light Detection and Ranging(LiDAR), and the operation analysis of the player is conducted. They identify gymnastics skills as a scoring support system and serve to accuracy and fairness of scoring. However, they have not been evaluated how players deal with the apparatus. The grasping the size and direction of the force from the amount of deformation of the apparatus leads to the improvement of the skills. In addition, players are changing the gymnastic apparatus to their own preferences by adjusting the load of cables. From this, the load of cables is an important factor in load condition identification of the apparatus. In this research, we will use the load cell to measure the load of cables and consider whether the load of cables when the quasi-static load is applied is useful for load condition identification of the gymnastics horizontal bar apparatus.