Research On The Speed, Stroke Frequency And Stroke Characteristics Of The Excellent Men's 1500m Freestyle In My Country

This study studies the speed,frequency and scale characteristics of the first three men's 1500 meter freestyle final in 2013-2019 National Swimming Championship(including two national games)by using the methods of literature,video shooting,image analysis and mathematical statistics,and explores to improve the competition speed and the on-the-way swimming order of the excellent athletes in the men's 1500 meter freestyle program in China The effective way of the stroke in the section provides data support for preparing for major international competitions.After analysis and research,the following conclusions and suggestions are drawn:1.the results show that the overall performance of men's 1500 meter freestyle shows a downward trend.We believe that the result is mainly due to the decline of travel performance along the way with the age of the 2013 National Games of Sun Yang,the record holder of Asia.2.through the relevant analysis,the indicators of middle swimming stage,turning stage and final sprint stage of men's 1500 meter freestyle project final have a decisive influence on the overall performance,while the starting stage 15 meters stage and the last 5 meter sprint stage index have no influence on the final performance of the competition.3.the scores of the three men's 1500 meter freestyle athletes were statistically analyzed.The results showed that the stroke amplitude,speed index and the total score were significantly negative correlation,while the stroke frequency was negatively correlated with the stroke amplitude,but the frequency of stroke was not significantly related to the performance of the assembly.It can be seen that if the stroke frequency of athletes is constant in 1500 freestyle events,the greater the stroke amplitude,the better the final score.We think if athletes should find the technical characteristics suitable for themselves,use reasonable frequency and stroke combination to obtain a higher speed index,in order to achieve the goal of creating excellent sports performance.4.the 435 m turning speed index and its total score of the top three men's 1500 meter freestyle final were analyzed statistically.The conclusion is that the correlation between the total score and the single turn segment index is strong and the double turn segment index is strong.We think it is related to the skill level of turning and the whole body coordination and exertion.We can master the correct turning technique to improve the turning speed and shorten the turning time,thus creating excellent sports results.5.the final sprint 100 meter segment index and other 100 meter segment indicators showed a significant positive correlation.Therefore,every athlete with a fast 100 m segment speed can also achieve a fast speed in the last 100 meter sprint time.In the competition,the High-level Men's 1500 meter freestyle athletes can not achieve ideal results at a certain 100 m segment.Only by keeping the high speed of each 100 m segment can they achieve the ideal results.