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Locogram software: tool for analysing walking exercises

A technique of gait, counting steps, applied in the direction of application, medical science, measuring distance, etc., able to solve problems that are not used to eliminate reference methods, etc.

Inactive Publication Date: 2019-12-06
PARIS DESCARTES UNIVERSITY SORBONNE PARIS CITE +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

parameters are subject to this variability, and there is no reference method for eliminating it

Method used

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  • Locogram software: tool for analysing walking exercises
  • Locogram software: tool for analysing walking exercises
  • Locogram software: tool for analysing walking exercises

Examples

Experimental program
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Embodiment Construction

[0054] The invention relates to a device 1 for analyzing N steps of an individual without parameter calculations, based on an overall consideration of N gait or running cycles by comparing each cycle with every other cycle The regularity and symmetry over time of the sequence of states or running cycles.

[0055] The term "gait or run cycle" corresponds to defined phases between heel strikes of the same foot on the ground that occur at certain times between heel strikes during an individual's walking or running. Thus, it represents the behavior of one's feet during one step.

[0056] As is known from the prior art, the different stages can be defined as percentages, 0% corresponding to the first heel strike and 100% corresponding to the second heel strike.

[0057] The cycle can be divided into two phases: the stance phase (0 to 60%), where the foot is in contact with the ground, and the swing phase, where the heel is in the air (60% to 100%).

[0058] This term defines all ...

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Abstract

The present invention relates to a device 1 for analysing the regularity and symmetry of a sequence of N walking or running cycles of an individual, comprising sensors 2 for measuring raw time signalsof a physical displacement variable of an anatomical segment, a processing unit connected to the measurement sensors 2 and having calculation and processing means arranged for separating the raw timesignals into distinct time signals Ci, wherein the series Ci is associated with a given walking or running cycle i of the individual, calculating at least one coefficient of similarity between the signal Ci associated with the walking or running cycle i and another signal Cj associated with a walking or running cycle j of the same individual, display means 4 connected to the processing unit and displaying the matrix M(i,j) in which each value of the coefficient of similarity is represented by a colour located in a graduated colour scale to allow the naked eye to see the similarity between thewalking or running cycles i and j.

Description

technical field [0001] The invention relates to a device for analyzing the regularity and symmetry of a sequence of gait or running cycles of an individual. Background technique [0002] More recently, advances in electronics and informatics have led to the development of new sensors that make it possible to measure gait in routine clinical consultations (eg using inertial sensors). These sensors have access to signals that need to be aggregated in order to draw conclusions about an individual's gait. [0003] Gait parameters such as velocity or tempo are the most generalized form of a gait signal because they reduce the signal to numbers. Manufacturers of tools for measuring gait therefore provide exhaustive reports in the form of lists of parameters expressing various aspects of an individual's gait, such as symmetry, regularity or initial agility. [0004] There may be more than one hundred parameters. They are presented in a suitable manner in the form of tables, bar ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/11
CPCA61B5/6829A61B5/7246A61B5/112A61B5/4082G01C22/006A61B2562/0219A61B5/1123A61B5/743A61B2562/0247
Inventor 皮埃尔·维达尔雷米·巴鲁瓦-米勒达米安·里卡多劳伦特·欧德
Owner PARIS DESCARTES UNIVERSITY SORBONNE PARIS CITE
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