Lacking in walking balance decision it is not possible, the procedure which determines the direction which becomes standard is proposed. After this reference direction deciding, to be understood expressing three dimensional accelerating data easily, visual you propose ideal method and the device which grasp gait quantitatively. The axial direction component data is decided from most likely front and back or the most likely left and right direction which is decided by three dimensional accelerating data of front and back standard operation or left and right standard operation of the walking animal which installs three dimensional accelerating sensor, the accelerating vector data is drawn in the aforementioned spatial figure or the groundplan, walking animal gait balance is quantized with various gait analysis know-how.
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