Effect of the Construction of Carbon Fiber Plate Insert to Midsole on Running Performance

Materials

卷:14

Fengqin Fu¹  Jiayu Wang¹  Yaodong Gu¹  Gusztáv Fekete²  Ievgen Levadnyi³  Yuhui Cai³  Zhihao Xie³ 

[1] Faculty of Sports Science, Ningbo University, Ningbo 315000, China;

[2] Savaria Institute of Technology, Eötvös Loránd University, 9700 Szombathely, Hungary;

[3] Xtep Sports Science & Engineering Laboratory, Xtep Co. Ltd., Xiamen 361000, China;

关键词: longitudinal midsole bending stiffness;    3D kinematics;    ground reaction force (GRF);    footwear;    carbon running shoes;    performance;   

DOI  :  10.3390/ma14185156

来源: DOAJ

【 摘 要 】

In this paper, to investigate the independent effect of the construction of the forefoot carbon-fiber plate inserted to the midsole on running biomechanics and finite element simulation, fifteen male marathon runners were arranged to run across a runway with embedded force plates at two specific running speeds (fast-speed: 4.81 ± 0.32 m/s, slow-speed: 3.97 ± 0.19 m/s) with two different experimental shoes (a segmented forefoot plate construction (SFC), and a full forefoot plate construction (FFC)), simulating the different pressure distributions, energy return, and stiffness during bending in the forefoot region between the SFC and FFC inserted to midsole. Kinetics and joint mechanics were analyzed. The results showed that the footwear with SFC significantly increased the peak metatarsophalangeal joint (MTPJ) plantarflexion velocity and positive work at the knee joint compared to the footwear with FFC. The results about finite element simulation showed a reduced maximum pressure on the midsole; meanwhile, not significantly affected was the longitudinal bending stiffness and energy return with the SFC compared to the FFC. The results can be used for the design of marathon running shoes, because changing the full carbon fiber plate to segment carbon fiber plate induced some biomechanical transformation but did not significantly affect the running performance, what is more, reducing the peak pressure of the carbon plate to the midsole by cutting the forefoot area of the carbon fiber plate could be beneficial from a long-distance running perspective for manufacturers.

【 授权许可】

Unknown