Analysis for Training Factor on Chinese Women's Walker Break the 20km Race Walking World Record

Abstract

This research analyzed the technical and tactical characteristics of two elite race walkers from China, Yang Jiayu and Liu Hong, using methods of competition testing and experts interviewing. In this way, we summarized the reasons why they set the world record. Race walking is a "compound type of mobile pendulum movement" which synchronizes "near fixed positive pendulum motion" and "far fixed inverted pendulum motion" with single support and periodic motion. For these two athletes, speed in the first 10km was faster than the second 10km. Both increased the minimum speed and lowered the maximum speed to reduce the fluctuation of the game speed, thereby improving the stability of their competition state. Both increased their stride length, and the left stride length was longer than the right. When walking at low speed, the differences between left and right were larger. The average stride frequency of Yang Jiayu and Liu Hong was lower than that of world record. Yang Jiayu's highest and lowest stride frequency were both lower than the world record and kept relatively stable. Liu Hong's highest stride frequency was equivalent to the world record but the lowest stride frequency was lower. Both Yang Jiayu and Liu Hong's flight time were at the lower limit of the penalty standard range. Both had a certain possibility of improvement in body movement posture. In the arrangement of training load from 2016 to 2021, it showed the variation characteristics of "limiting higher intensity, controlling lower intensity, and increasing effective intensity".