The Construction Of The Soundscape Prediction Model For Competition State Anxiety Of Chinese Outstanding Snowboard U-shaped Course Skiers

Athletic achievement is the comprehensive embodiment of various abilities of an athlete.The training method that combines strong physical ability,excellent professional skills,tactics of knowing oneself and one's enemy,good psychology and high level intelligence is helpful for the athletes to achieve excellent competition results.However,when the technical and tactical level of the athletes reaches the personal limit level,the room for improvement is often not large.At this time,the factor that affects the performance of the competition is often the psychological factor.All the internal and external factors before and during the competition affect the level of competition anxiety of the athletes,and then affect the performance of the competition.It is particularly important to obtain athletes' anxiety and then carry out psychological regulation on athletes.The competition status anxiety of current athletes is still obtained by CSAI-2 scale.Before the competition,athletes are under a lot of pressure and undertake heavy training tasks.Sometimes,it is difficult for them to fill in the questionnaire,or they are resistant to filling in the questionnaire,resulting in inaccurate results.All of these will affect the acquisition of athletes' competition state anxiety,making it impossible for the staff to accurately regulate the mental state of athletes,thus affecting the performance of athletes themselves.This study will sound landscape research is introduced into the field of sport psychology,combined with basic information,subjective feeling,competition environment,as well as the state of physiological function and so on,USES the questionnaire survey method,measurement method,experimental method,aims to explore veneer u-shaped skiing athletes competition state anxiety,influence factors and influence degree by artificial neural network to the result of the influence factor and competition state anxiety in-depth study and analysis,and uses BP platform,logistic regression was used to construct the veneeru-shaped skiing athletes in the competition venue sound environment prediction model of state anxiety,In order to use the known factors in the future without affecting the athletes to obtain their anxiety situation.Research results:(1)21 indicators are selected as the input variables of the prediction model of athletes' competition state anxiety,and the output result is the level of individual competition state anxiety and the anxiety level of each dimension.(2)The 17 variables were significantly correlated with the cognitive state anxiety of snowboarders in u-shaped snowboard skiing field,and the sound pressure level,reverberation time,sound comfort evaluation and subjective loudness were not correlated with the cognitive state anxiety.Twenty variables were significantly or very significantly correlated with the athletes' somatic state anxiety and state confidence,while the reverberation time was not correlated with the athletes' somatic state anxiety and state confidence.(3)The number of hidden nodes,the number of iterations and the training function of ANN model are determined(4)According to the parameters of the ANN model,the influence factors were taken as input factors,and the anxiety degree of competition state was taken as output factors.Three ANN models of different categories of competition state anxiety were constructed,and the corresponding grouping model was further made.