The Study Of Power And Speed And Relevant Factors For Cross-country Skiers

After entering for the 21st century, the modern society and athletics are developing veryfast, especially the athletic sports. It is one of the markings for a nation and the overallnational strength. In our country, the item is developing better in summer, but the item inwinter falls behind, especially the cross-country skiing item which has a big gap with theinternational level. By consulting large amount of materials, watching the previous thecross-country ski-racing , the author has found that there is a commonness in our country'sathletes. In the first half competition, our skiers are as good as other foreign skiers. But in thelast half part, there is a big gap between them. What is the reason that makes our skiers fallbehind? So in this article, the author's focus is mainly on this question. The purpose is toprovide beneficial reference and the theories of sciences for the cross-country skiing of ourcountry. In this article, the author uses some methods to do the meticulous research, such as thecultural heritage data method, the experiment method, expert interview method, thequestionnaire method, the observation method, the mathematics statistics method etc. Becausethe cross-country skiing is a periodic sport item, in addition to have good power, speed,intelligent coordination and pliant and flexibility characters, the skiers must also have theability that have the oxygen to bear the dint and have no the ability that oxygen bear the dint.In other words, it is the strengthen of the ability that have the oxygen to bear the dint and haveno the ability that oxygen bear the dint that decide the result of the cross-country ski-racing.What is the component? In order to find the answer, the author chooses two teams to do theresearch. One team is the national cross-country skiing concentration , the other is Jinlin City,Changchun cross-country skiing team. By comparing the two team, we can see that there is agood relation between the score of endurance and the blood lactic acid density which canabsorb the highest amount of oxygen before it has the certain regularly variety. We cananalyze the statistic of the blood lactic acid to choose the training speed. The experiment also measures the most bottom speed of oxygen training, the mostbottom speed of no oxygen training and the instant heart rate. Thus we can draw a sketchamong oxygen training, non-oxygen training and the heart rate. Therefore, we can providescientific evidence for the oxygen training and non-oxygen training, and to provide theworthy reference for training our country's coach member.