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Acquisition and analysis of angles between the hip and knee during the sit-up process through the kinect sensor

Abstract:

This paper describes the development of a system to buy kinect sensor through the angles formed by the hip and knee during rising and sitting, thus analyzing the angular behavior of these two joints of the human body, trying to obtain a set of chords angles of real mobility of a person to perform this exercise before, the data analysis will be divided into two parts, the first part of the analysis will sit on the exercise of the other to get up, taking designed to obtain initial and final angles inversely related to each exercise, along with an analysis of the angular variation range for each exercise, thus demonstrating the proper functioning of the software produced, the range of angular values obtained both for the exercise of sitting as to the rising need to be very similar, as variation as to make the theoretical maximum is 90 degrees process therefore also discloses the error between the given angles and obtained by the software, this error as obviously should not exceed 10 degrees, this value is supported by management software which works based on probability to find the coordinates of various joints of the body. It is important that the treatment is purely mathematical coordinates, this to find the angular values set forth herein. © 2013 IEEE.