| Research Purpose:For further improving the competitive level of Chinese paralympic snowboarding and consolidating our competitive advantage in 2022 Beijing Winter Paralympic Games,this thesis takes function indexes of Chinese paralympic snowboarding athletes in national team as research objects,and collects their function indexes for theoretical studies and mathematical analysis.After that,the weights and standard of their function indexes are established,and a relevant function evaluation system for these people is constructed.Research MethodologyBy providing services to the scientific research team of paralympic snowboarding athletes,the author collects function indexes of 12 excellent paralympic snowboarding athletes as research objects.Meanwhile,this thesis summarizes the theoretical basis of function evaluation system through literature retrieval.Then the questionnaire survey method is used to screen function index.In addition,through the test method,this thesis collects the original function data of paralympic snowboarding athletes.Finally,the mathematical statistical analysis is used to transform the original data measured at different times into a form of evaluation scores.Combining different indexes,this thesis quantifies and scientifically evaluates the function indexes according to their different contribution rates to the function level.It can be used to establish an evaluation model that is suitable for the function test of Chinese paralympic snowboarding athletes,finally constructing a comprehensive function evaluation system for excellent paralympic snowboarding athletes.Research Results:After the literature retrieval and expert questionnaire distribution,this thesis selects 6 first-grade indexes,including indexes of oxygen circling system function,endocrine function,immune function,neurosensory function,substance energy metbolism function and skeletal muscle function.Moreover,there are 14second-grade indexes,including heart rate,vital capacity,hemoglobin,serumtestosterone,cortisol,white blood cell,flicker fusion frequency,ratings of perceived exertion,reaction time,blood urea nitrogen and creatine kinase.In the successfully constructed function evaluation system for Chinese excellent snowboarding athletes,the weights of the first-grade function indexes have little difference,in which the neurosensory function index has the least impact on the function level.Therefore,during the function test,it should pay attention to the impacts of different indexes on excellent snowboarding athletes.According to the construction of function evaluation standard for Chinese excellent paralympic snowboarding athletes,this thesis obtains the relevant comprehensive scores and grades.The 12 excellent athletes in this research have not much difference in their scores of function indexes,and their grades are excellent or good,which basically reflects the function level of Chinese excellent paralympic snowboarding athletes.Research Conclusion:1.The function of paralympic snowboarding athletes is composed of various function systems,and each subsystem comprises several factors related to function.Moreover,the function evaluation system is composed of evaluation indexes,index weights and evaluation standard.The construction process includes the following steps: determining the evaluation object and target — determining the index system— determining the weight of each index — designing evaluation standard —completing the construction of the entire system.2.In this thesis,the progressive scoring method is used to establish the function scoring standard for these athletes,and their function status can be judged and scored by this standard.Meanwhile,a percentile estimator is used to establish function grade standard on the basis of function scoring standard.In addition,this thesis comprehensively evaluates the function level of Chinese excellent paralympic snowboarding athletes according to function evaluation standard,and constructs a function evaluation system. |
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