Eight-section impedance model based body composition analysis method

A body composition and impedance model technology, used in medical science, sensors, diagnostic recording/measurement, etc., can solve problems such as poor adaptability and large errors in analyzing body composition, and achieve high adaptability, small errors, and accurate body composition.

Active Publication Date: 2014-03-19
DALIAN UNIV
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Problems solved by technology

[0003] In response to the above problems, the present invention proposes a body composition analysis method based on an ei

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  • Eight-section impedance model based body composition analysis method
  • Eight-section impedance model based body composition analysis method
  • Eight-section impedance model based body composition analysis method

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Embodiment Construction

[0025] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention are clearly and completely described below in conjunction with the drawings in the embodiments of the present invention:

[0026] First, the eight-segment human body impedance model and the method to solve the related impedance are given, such as figure 1 Shown: Set the impedance value of the right upper limb of the human body as R 1 , the left upper limb is set to R 3 , right lower limb R 7 , left lower limb R 8 , Longitudinal R of the right body 4 , Longitudinal R of the left body 5 , upper body R 2 , lower body R 6 ; The left hand, right hand, left foot and right foot of the human body are used as access points, which are respectively named a, b, c and d, and a current electrode and a voltage electrode are arranged at each access point. By adding current excitation to the tw...

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Abstract

The invention discloses an eight-section impedance model based body composition analysis method. The body composition analysis method comprises the following steps: according to input currents and measured voltages, acquiring six valid body impedance expressions through the eight-section body impedance model; acquiring the difference value between the resistance values of left and right upper limbs as well as the difference value between the resistance values of left and right lower limbs through a five-section body impedance model; calculating to obtain the body impedance expression of each section; according to at least two groups of different input currents and the body impedance expression of each section, obtaining at least two groups of body impedance values; selecting the optimal group of eight-section impedance values, and determining a fitting model according to the selected optimal group of eight-section impedance values; conducting training on a plurality of known samples in the fitting model to obtain unknown coefficients of the fitting model as well as a body composition predicting formula; according to the body composition predicting formula, analyzing the unknown samples to obtain body composition parameters. Through the adoption of the body composition analysis method, the obtained the body composition is accurate.

Description

technical field [0001] The invention relates to the field of body composition analysis, in particular to a method for body composition analysis based on an eight-segment impedance model. Background technique [0002] At present, most of the existing body composition analysis methods use the whole body impedance model or the five-segment impedance model, and almost no eight-segment impedance model is used. In order to break through the limitations of the whole body and five-segment impedance measurement models, the current market needs to use eight A method for body composition analysis of impedance measurement models. Although the eight-segment impedance model has been proposed in the industry, there is no mature solution method, so it is very meaningful to study the solution of the eight-segment impedance. At present, there are many methods for measuring body composition at home and abroad, such as bioelectrical impedance method, body index method, underwater weighing meth...

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Application Information

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IPC IPC(8): A61B5/053
Inventor 陈波毕美晨高秀娥杜秀丽
Owner DALIAN UNIV
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