On-running landing position evaluation method, on-running landing position evaluation apparatus, detection method, detection apparatus, running motion evaluation method, and running motion evaluation apparatus

An on-running landing position evaluation method comprising:

• with an acceleration sensor, evaluating a running motion of a user who is running by determining deceleration periods in on-ground durations of the running motion of the user based on acceleration values from the acceleration sensor;
• calculating travel distances in the determined deceleration periods corresponding to distances between landing positions of the user and centers of gravity of the user when the user lands in the running motion;
• and
• displaying a histogram during the running motion, wherein a first axis of the histogram indicates a plurality of different travel distances and a second axis of the histogram indicates frequencies that each of the plurality of different travel distances were calculated as travel distances, and wherein the histogram includes an indication of which of the plurality of different travel distances corresponds to a most recently calculated travel distance.