Walking motion visualization apparatus and walking motion visualization method, and aligned state determination apparatus and aligned state determination method

A walking motion visualization method comprising:

• an acceleration data acquisition step of acquiring, from an acceleration sensor disposed on a median line that is a center line between left and right sides of a body of a subject,
• stationary state acceleration data for determining a direction of gravity in a state where the subject is stationary and
• determination acceleration data that is acceleration data when the subject is walking in order to determine whether the acceleration sensor is in a directly opposing state with respect to the median line or not;
• a determination step of determining whether the acceleration sensor is in a directly opposing state with respect to the median line or not, based on the acquired stationary state acceleration data and determination acceleration data;
• a walking acceleration data acquisition step of acquiring walking acceleration data from the acceleration sensor while the subject is walking when it is determined in the determination step that the acceleration sensor is in a directly opposing state with respect to the median line;
• a walking motion analysis step of analyzing a walking motion of the subject, based on the acquired walking acceleration data;
• and
• a display control step of displaying a walking motion model image of the subject, based on an analysis result in the walking motion analysis step.

A directly opposing state determination apparatus comprising:

• an acceleration data acquirer to acquire, from an acceleration sensor disposed on a median line that is a center line between left and right sides of a body of a subject,
• stationary state acceleration data for determining a direction of gravity in a state where the subject is stationary and determination acceleration data that is acceleration data when the subject is walking in order to determine whether the acceleration sensor is in a directly opposing state with respect to the median line;
• and
• a determiner to determine whether the acceleration sensor is in a directly opposing state with respect to the median line or not, based on the acquired stationary state acceleration data and determination acceleration data.

A directly opposing state determination method comprising:

• an acceleration data acquisition step of acquiring, from an acceleration sensor disposed on a median line that is a center line between left and right sides of a body of a subject,
• stationary state acceleration data for determining a direction of gravity in a state where the subject is stationary and
• determination acceleration data that is acceleration data when the subject is walking in order to determine whether the acceleration sensor is in a directly opposing state with respect to the median line or not;
• and
• a determination step of determining whether the acceleration sensor is in a directly opposing state with respect to the median line or not, based on the acquired stationary state acceleration data and determination acceleration data.