Exercise analysis apparatus, exercise analysis method, exercise analysis program, and exercise analysis system

Abstract

An exercise analysis apparatus includes a feature point detection unit that detects a feature point in a user's running by using a detection result from an inertial sensor, and an exercise information generation unit that analyzes the user's running with a timing at which the feature point detection unit detects the feature point as a reference by using the detection result from the inertial sensor, so as to generate exercise information of the user.

What is claimed is: 
     
         1 . An exercise analysis apparatus comprising:
 a calculation unit that generates exercise information of a user by using a detection result from an inertial sensor; and   a swing leg information generation unit that generates information regarding a swing leg while the user's foot contacts a ground, by using the exercise information.   
     
     
         2 . The exercise analysis apparatus according to  claim 1 ,
 wherein the swing leg information generation unit generates information regarding the swing leg at the time when a predetermined state occurs while the user's foot contacts the ground, and   wherein the time when the predetermined state occurs is the time when the user's foot lands, the time of mid-stance, the time of stepping, or the time of taking-off.   
     
     
         3 . The exercise analysis apparatus according to  claim 1 ,
 wherein the exercise information includes information regarding an attitude angle of the user's body, and   wherein the swing leg information generation unit generates the information regarding the swing leg by using the information regarding the attitude angle.   
     
     
         4 . The exercise analysis apparatus according to  claim 2 ,
 wherein the information regarding the swing leg includes information regarding an angle of the swing leg at the time when the predetermined state occurs while the user's foot contacts the ground.   
     
     
         5 . The exercise analysis apparatus according to  claim 1 ,
 wherein the swing leg information generation unit computes a value of an index correlated with an angle of the swing leg, and estimates the angle of the swing leg by using the value of the index.   
     
     
         6 . The exercise analysis apparatus according to  claim 5 , further comprising:
 a feature point detection unit that detects a feature point in an exercise of the user corresponding to the predetermined state,   wherein the swing leg information generation unit computes the value of the index by using a detection result of the feature point.   
     
     
         7 . The exercise analysis apparatus according to  claim 5 ,
 wherein the index is a difference between a time point at which an attitude angle of the user's body satisfies a predetermined condition and a time point at which the predetermined state occurs while the user's foot contacts the ground.   
     
     
         8 . The exercise analysis apparatus according to  claim 5 ,
 wherein the index is a difference between a value of an attitude angle at the time when the attitude angle of the user's body satisfies a predetermined condition and a value of the attitude angle at the time when the predetermined state occurs while the user's foot contacts the ground.   
     
     
         9 . The exercise analysis apparatus according to  claim 7 ,
 wherein the attitude angle is a yaw angle, and   wherein the time when the attitude angle satisfies the predetermined condition is the time when the yaw angle is the maximum or the minimum between landing and taking-off of the user's foot.   
     
     
         10 . The exercise analysis apparatus according to  claim 5 ,
 wherein the index is an attitude angle of the user's body at the time when the predetermined state occurs while the user's foot contacts the ground.   
     
     
         11 . The exercise analysis apparatus according to  claim 10 ,
 wherein the attitude angle is a pitch angle.   
     
     
         12 . The exercise analysis apparatus according to  claim 1 ,
 wherein the inertial sensor is mounted on the user's body.   
     
     
         13 . An exercise analysis system comprising:
 the exercise analysis apparatus according to according to  claim 1 ; and   a notification apparatus that acquires the information regarding the swing leg from the exercise analysis apparatus and notifies the user of information regarding an exercise state during the user's exercise.   
     
     
         14 . An exercise analysis system comprising:
 the exercise analysis apparatus according to according to  claim 1 ; and   an information analysis apparatus that acquires the information regarding the swing leg generated by the exercise analysis apparatus and generates analysis information of exercise performance of the user.   
     
     
         15 . An exercise analysis method comprising:
 generating exercise information of a user by using a detection result from an inertial sensor; and   generating information regarding a swing leg while the user's foot contacts a ground, by using the exercise information.   
     
     
         16 . An exercise analysis program causing a computer to execute:
 generating exercise information of a user by using a detection result from an inertial sensor; and   generating information regarding a swing leg while the user's foot contacts a ground, by using the exercise information.