A body characteristic measurement method causing a computer to execute a process, the process includes: determining a gait of a quadruped based on accelerations, acquired from a multi-axis acceleration sensor attached to the chest of the quadruped, in multiple axial directions； and determining, if the determined gait is gallop or canter, an injury risk of the quadruped based on a waveform of a positive half-wave region of acceleration in a movement direction of the quadruped in the case where an increase in the acceleration in the movement direction of the quadruped is defined as positive.
