Department of Mechano-Informatics, Graduate School of Information Science and Technology, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan.
Sensors (Basel). 2017 Oct 24;17(10):2431. doi: 10.3390/s17102431.
We measured the three-axis ground reaction force (GRF) distribution during straight walking. Small three-axis force sensors composed of rubber and sensor chips were fabricated and calibrated. After sensor calibration, 16 force sensors were attached to the left shoe. The three-axis force distribution during straight walking was measured, and the local features of the three-axis force under the sole of the shoe were analyzed. The heel area played a role in receiving the braking force, the base area of the fourth and fifth toes applied little vertical or shear force, the base area of the second and third toes generated a portion of the propulsive force and received a large vertical force, and the base area of the big toe helped move the body's center of mass to the other foot. The results demonstrate that measuring the three-axis GRF distribution is useful for a detailed analysis of bipedal locomotion.
我们测量了直走时的三轴地面反作用力（GRF）分布。制作并校准了由橡胶和传感器芯片组成的小型三轴力传感器。传感器校准后，将 16 个力传感器安装到左鞋上。测量直走时的三轴力分布，并分析鞋底三轴力的局部特征。脚跟区域起到了承受制动力的作用，第四和第五脚趾的基部区域施加的垂直力或剪切力很小，第二和第三脚趾的基部区域产生部分推进力并承受较大的垂直力，大脚趾的基部区域有助于将身体的重心移到另一只脚。结果表明，测量三轴 GRF 分布有助于对双足运动进行详细分析。
