Comparison Of Speed Change Characteristics Of Elite Junior Speed Skaters At Different Stages Of 1000 Meters

Based on the background of 2022 Beijing Olympics to the sustainable development of the speed skating sports in our country,for the purpose of excellent young speed skating athlete at home and abroad,1000 meters,comparing the different stages of speed variation characteristics detection and diagnosis of the advantages and defects of speed skating athletes physical ability in our country,construction of speed skating athletes at different stages the best mode of speed change,for China's youth1000 m speed skating athletes to provide targeted training strategy.To youth in the speed skating World Cup 1000 m speed skating before the game 6 of the 12 athletes athletes(not including China)and six Chinese young athletes to participate in the game for the test object.Proposed by the methods of literature material,expert interview method,velocity measuring method,content analysis,comparative analysis,mathematical statistics,logic analysis and other research is analyzed,the outstanding young athletes of 1000 m speed skating athletes speed variation characteristics of different stages.Research suggests that:(1)based on the physiological basis of knot,speed skating project 1000 m speed skating metabolic characteristics of the project,thinks the 1000 m speed skating there are two main phases of the project,one is 1000 m,divided into the first 200 m,400 m middle and later period of the three phases of400 m;Secondly,the 1000 m is divided into the front after 500 m and 500 m in two stages;(2),the outstanding young athletes in 200-400-400 phase characteristics can be summarized as the speed of change,the former athletes in 200 m phase velocity change is big,the middle stage of 400 m speed changes smoothly,after 400 m phase speed changes as small as possible,but Chinese youth players not only show the future to accelerate the insufficiency,and it also showed after the process speed down the severity of the;(3)Chinese youth players in the top 500 m phase of the change rule of speed,throttle stage,bend over to accelerate stage,until slowly accelerating stage,speed changes in acute intermittent acceleration characteristics;After changes in the rate of 500 m is a true rule,that phase velocity is falling fast in bend and straight phase velocity leveled off,after the process speed down a step down characteristic;(4)foreign young athletes in the first 500 m phase of the change rule of speed,start up nasty acceleration continue accelerating stage,curve,straight-slow acceleration phase of the bend,the persistent and stable speed change speed characteristic;After the process change law of 500 m speed,stage a curve using the technology control thespeed down,straight stage using decline in physical control,after the process speed down has reverse control features.