Research On The Influence Of Different Amount Of Weak Sidehand Training On The Impact Of 9-10 Year Old Children's Tennis Bottom Line Forehand Hitting Point

Objective:In this paper,the influence of non-dominant hand training on the baseline forehand stroke of 9-10 year olds is studied.With the depth and precision of the drop point as the index,the influence of different quantities' training on baseline forehand stroke was compared so as to explore the best amount of non-dominant side training,and provide some reference for tennis scientific training.Methods:The study mainly adopts the methods of literature,experiment and mathematical statistics.60 children,aged 9-10,who had certain tennis learning foundation(all male)were randomly divided into 6 groups(5 experimental group and 1 control group).A 12 week group experiment was conducted(each group intervened 3 times a week for 90 minutes).In the experimental group,1-5 non-dominant hands training accounted for 10%,20%,30%,40%and 50%of the total training respectively,while the control group did not perform non-dominant hand training.According to the ITN International Tennis grading test standard,the depth and accuracy of forehand stroke were tested before and after 12 weeks.The data of each group were analyzed by one-way ANOVA before and after the experiment using SPSS 19.0 software.Paired samples t test was conducted before and after the experiment.Results:1.After 12 weeks' experiment,the depth and accuracy of baseline forehand stroke increased significantly compared with that before the experiment(P<0.01).2.After 12 weeks of experiment,the experimental group 2-5 which non-dominant hand training accounted for more than 20%of the total amount of training,was compared with the control group(no non-dominant hand training group)respectively,It shows that the results of depth test were different and so does the accuracy test(P<0.05);there was no difference between the experimental group 1 and the control group(P>0.05).3.After 12 weeks of experiment,when the amount of non-dominant hand training was over 30%,the depth test and accuracy test results were gradually decreased(experimental group score 3>4>5).The two test scores were significantly different between the experimental group 5 and the experimental group 3(P<0.05).4.After 12 weeks of experiment,When the amount of non-dominant hand training accounted for 30%in the total amounts of training,the results of depth test and accuracy test were the best(experiment group 3).The two test scores had almost no differences among the experimental group 3,the experimental group 2 and the experimental group 4(P>0.05).Conclusion:1.In the 9-10 year olds' tennis baseline forehand training,combined with a certain amount of non-dominant hand training can improve the baseline forehand stroke more effectively.2.The amount of non-dominant hand training is not directly proportional to the score of bottom line forehand stroke and the amount of non-dominant hand training should be controlled within a reasonable range(20%-50%).3.In the tennis baseline forehand stroke training,the amount of non-dominant hand training should be arranged at about 30%.