태권도 돌려차기 수행 시 겨루기 숙련자와 비숙련자의 상지 근활성도(EMG) 비교 분석

Abstract

In this study analyzed the difference in upper limb muscular activity by dividing kick performance into three phases for 7 skilled and 7 unskilled Taekwondo competitors and drew the following conclusions. First, a comparative analysis of upper limb muscular activity in the first phase showed that the skilled group outperformed the unskilled group in the biceps brachii(left), deltoid muscle(left), triceps brachii(left), biceps brachii(right), and triceps brachii(right). Second, a comparative analysis of upper limb muscular activity in the second phase showed that the skilled group outperformed the unskilled group in the biceps brachii(left), deltoid muscle(left), triceps brachii(left), biceps brachii(right), deltoid muscle(right), and triceps brachii(right). Third, a comparative analysis of upper limb muscular activity in the third phase showed that the skilled group outperformed the unskilled group in the biceps brachii(left), triceps brachii(left), biceps brachii(right), deltoid muscle(right), and triceps brachii(right). For the perfection of the dollye-chagi, the hip and knee joints are expected to increase the strike power using maximal rotational and centrifugal force, when the upper biceps, triceps, and triangular muscles are tilted back in action that increases muscle activity. This shows clear differences between unskilled and skilled people, which seems to be a guideline for leaders to consider during training.