| Research purpose: In this paper,two high-speed cameras were used to shoot the walking movements of 10 tennis fans wearing Nike tennis shoes(A),Adidas tennis shoes(B),Wilson tennis shoes(C)and Asics tennis shoes(D).Using footscan plantar pressure test system,combined with impact test and comfort questionnaire,this paper discusses the stability,comfort,cushioning and shock absorption of four tennis shoes,and compares the biomechanical differences of the four tennis shoes.It can provide theoretical basis for players and tennis fans to choose tennis shoes and reduce the occurrence of sports injury.Research methods: 1)literature method: through searching and reading the relevant literature,clarify the research ideas and methods,and integrate the relevant parts of this paper.2)Experimental methods: including three-dimensional video analysis,plantar pressure test,impact test.Three dimensional video analysis method: use two JVC highspeed cameras to take three-dimensional pictures of 10 tennis fans walking in four tennis shoes,and use 3DSignal Tec analysis system to analyze the data of the videos taken;plantar pressure test: use footscan plantar pressure scanning system to collect the plantar pressure and other parameters of subjects walking in four tennis shoes;impact Test: put the shoes in the center of Kistler three-dimensional force measuring platform,and then use 1kg shot to drop freely from 10 cm,15cm,20 cm and 25 cm to the heel of four kinds of tennis shoes,and collect the peak impact force of four kinds of tennis shoes.3)Questionnaire survey method: using the internationally certified subjective comfort questionnaire,this paper conducts a questionnaire survey on the factors affecting the comfort of training shoes,such as heel,forefoot,arch,etc.4)Mathematical statistics: use SPSS 22.0 software to analyze all the data.Research results: 1)the results of kinematic comparison: there was no significant difference in hip,knee and ankle joint angles when walking with four kinds of tennis shoes(P > 0.05).2)The results of dynamic comparison: it is found that the relationship between the stability of wearing four tennis shoes is A >B> C > D;the relationship between the peak pressure of wearing four tennis shoes is C > D > A> B;the four tennis shoes have differences in hardness,overall comfort degree and comfort feeling in sports,and the sports feeling is more comfortable with the decrease of the hardness value of the shoes.Therefore,the relationship between comfort of wearing four tennis shoes is B > A> D> C.3)The difference of the peak pressure of the four tennis shoes is mainly in the forefoot and the middle of the foot.4)Impact test results: the greater the hardness of shoes,the worse the cushioning and shock absorption,that is,B > A > D> C.Research conclusion: 1)kinematic comparison conclusion: walking with four kinds of tennis shoes will not affect the kinematic parameters of lower limbs.Therefore,for low-intensity sports or walking,four kinds of tennis shoes can be selected.2)Conclusion: for professional tennis players,Nike tennis shoes(A)with good stability and moderate hardness should be selected.Its stability is good,it can effectively control the rapid sliding of foot in the shoe during running,and reduce the sports damage caused by excessive sliding.In addition,the peak pressure of the forefoot and the middle of the foot at different times is smaller,which can effectively reduce the occurrence of sports injury for high-intensity,heavy load and long-term tennis.3)For athletes or tennis enthusiasts who have sports injuries to their legs,you can choose Adidas tennis shoes(B).Its hardness value is small,and the movement feeling of forefoot and middle part of foot is the most comfortable.4)Tennis shoes with better cushioning and shock absorption can alleviate the foot fatigue in tennis,and it is not easy to cause sports damage to the legs.Therefore,you can choose Adidas(B)and Nike tennis shoes(A). |
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