| Swimming is one of the basic events in the modern Olympic Games.All countries attach great importance to its development,and our country is no exception.As a fitness class project,the swimmer must improve their flexibility,this is an important means to improve the competitive level of athletes,many coaches have realized for swimming for flexibility in importance,therefore,in the training process,the flexible training has been widely promoted,so as to improve the overall quality of swimming athletes.The Amateur Swimming Athletes different from the professional team of athletes,with younger age,training time and short cycle,also taking into account the athletes in the degree of fatigue after training,it is difficult to do systematic stretching in every training session,especially before the training and training of preparatory activities and relaxation after the end of the activities are athletes in simple tension,and no scientific warm-up and relaxation activities.In the period following the Shijiazhuang amateur swimming training schools through observation to understand that in the training class training content mainly basic to the speed,endurance,strength training,flexibility and very little for the related training and training time ratio,this is not enough and the coach on the flexibility associated with sport achievement of the lack of relevant knowledge even if there are relevant,and choose the static tensile and dynamic tensile tensile more traditional.The topics identified before by consulting books that the PNF stretching method is a new method of practice and flexibility,in tension pain,a deeper understanding,found in the research of other scholars in the PNF stretching method is widely used in athletics,aerobics and other projects,PNF is rarely used to swim stretching method exercise.Although the PNF stretching method has been applied in sports training for a long time,but I understand that the team during the Shijiazhuang swimming amateur sports school coaches have not heard of the PNF stretching method,practical application of the theory and reality in the visible or there is a gap.This article is based on this situation,through the use of PNF method to study the influence on tensile flexibility of Shijiazhuang city swimming amateur sports schools,selected 42 human subjects in Shijiazhuang city swimming amateur training time of 9-13 years old,2 years of athletes,were randomly divided into experimental group and control group.Before the experiment,the athletes were tested for flexibility and specific performance,and there were no significant differences in the indexes.After that,the shoulder,hip and ankle joints of the experimental group were stretched by the PNF stretching method in the training course,while the control group was treated by static stretching.According to the sports school training time arrangement experiment,each week carries on the training,the training time arranges in each training class,each class time is 120 minutes,the experimental time is 16 weeks.At the end of the experiment,the two groups of related data were compared and analyzed,and the following conclusions were drawn:1.The experiment with PNF stretching Fala for 16 weeks has been proved to be statistically significant.It shows that the PNF stretching method can continue to be applied in Shijiazhuang amateur sports school and popularized in swimming training.2 ? the stretch of shoulder joint,hip joint and ankle joint was improved by PNF stretching method,and the effect was better than routine stretching.3,the use of PNF stretching method to improve the swimming ability of swimmers is better than the routine drawing group. |
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