Movement analysis method, movement analysis apparatus, and movement analysis program

Abstract

A designation unit designates a checkpoint of sporting equipment on which a swing motion is performed. A first calculation unit calculates a movement path of the sporting equipment, which is being swung, using an output of an inertial sensor. A second calculation unit calculates a posture of an interest part of the sporting equipment at the checkpoint using the output of the inertial sensor up to the checkpoint on the movement path of the sporting equipment. The display unit displays the posture of the interest part of the sporting equipment at the checkpoint.

What is claimed is: 
     
         1 . A movement analysis method comprising:
 acquiring information about a swing movement path of sporting equipment and information about a posture of an interest part of the sporting equipment; and   outputting a state of the posture of the interest part of the sporting equipment at a designated checkpoint in the swing movement path of the sporting equipment.   
     
     
         2 . The movement analysis method according to  claim 1 ,
 wherein the designated checkpoint is designated using at least one of positional information and time information of the sporting equipment which is being swung.   
     
     
         3 . The movement analysis method according to  claim 1 , further comprising:
 acquiring information about a rotation angle of the sporting equipment, the rotation angle varying around a long axis of a shaft section of the sporting equipment during a swing; and   associating the interest part of the sporting equipment in the swing movement path with the information about the rotation angle.   
     
     
         4 . The movement analysis method according to  claim 1 ,
 wherein the interest part of the sporting equipment is an impact surface.   
     
     
         5 . The movement analysis method according to  claim 1 , further comprising:
 displaying an object image which shows the interest part in association with the swing movement path of the sporting equipment.   
     
     
         6 . The movement analysis method according to  claim 5 , further comprising:
 displaying a mark which changes an orientation according to change in the state of the posture of the interest part of the sporting equipment.   
     
     
         7 . The movement analysis method according to  claim 1 , further comprising:
 displaying the state of the posture of the interest part in a viewing position, the viewing position being a position at which an examinee looks at the interest part of the sporting equipment during a swing.   
     
     
         8 . The movement analysis method according to  claim 1 ,
 wherein the swing movement path is calculated based on output of an inertial sensor which is mounted on at least one of the sporting equipment and an examinee.   
     
     
         9 . The movement analysis method according to  claim 3 ,
 wherein the rotation angle is calculated based on an output of an inertial sensor which is mounted on the shaft section of the sporting equipment.   
     
     
         10 . A movement analysis apparatus comprising:
 a designating section that designates a checkpoint of sporting equipment which is being swung;   a path calculating section that calculates a movement path of the sporting equipment using an output of an inertial sensor;   a posture calculating section that calculates a state of a posture of an interest part of the sporting equipment at the checkpoint in the movement path of the sporting equipment; and   an output section that outputs the posture of the interest part of the sporting equipment at the checkpoint.   
     
     
         11 . A non-transitory computer-readable medium storing a movement analysis program, the program causing a computer to execute the steps of:
 acquiring information about movement path of sporting equipment, which is being swung, and information about a posture of an interest part of the sporting equipment using an output of an inertial sensor;   designating a designated checkpoint in the movement path of the sporting equipment; and   outputting a state of the posture of the interest part of the sporting equipment at the designated checkpoint.   
     
     
         12 . The movement analysis method according to  claim 1 , the method further comprising:
 acquiring information about a predetermined condition regarding at least one of information of an examinee and a dimension of the sporting equipment which is being swung.   
     
     
         13 . The movement analysis method according to  claim 12 ,
 wherein the designated checkpoint is designated based on the predetermined condition.   
     
     
         14 . A movement analysis apparatus comprising:
 a storage section that stores a predetermined condition regarding at least one of information of an examinee and a dimension of sporting equipment which is being swung;   a designating section that designates a checkpoint of sporting equipment during a swing based on the predetermined condition;   a path calculating section that calculates a movement path of the sporting equipment using an output of an inertial sensor;   a posture calculating section that calculates a state of a posture of an interest part of the sporting equipment at the checkpoint in the movement path of the sporting equipment; and   an output section that outputs the posture of the interest part of the sporting equipment at the checkpoint.   
     
     
         15 . The movement analysis apparatus according to  claim 14 ,
 wherein the predetermined condition is information about a height of the examinee.   
     
     
         16 . The movement analysis apparatus according to  claim 14 ,
 wherein the predetermined condition is a length of the interest part from the inertial sensor.   
     
     
         17 . The movement analysis apparatus according to  claim 14 ,
 wherein the output section outputs the movement path of the sporting equipment,   the movement analysis apparatus further comprising:   a display device configured to display the posture of the interest part of the sporting equipment at the checkpoint in association with the movement path.