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Decomposition method and device for standing and shaking signals of human body

A signal decomposition and human body technology, applied in the field of medical testing, can solve problems such as difficult quantification, objective evaluation, no way to give relevant information about the main source of the subject's balance problem, and limited value for clinical diagnosis guidance

Active Publication Date: 2019-02-15
ZHEJIANG UNIV
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Problems solved by technology

These methods are highly subjective, and the evaluation results of different doctors may vary greatly. It is difficult to quantitatively and objectively evaluate, and there is no way to give relevant information about the main source of the subject's balance problem. Therefore, its application has relatively large limitations. At the same time, its guiding value for clinical diagnosis is also very limited

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  • Decomposition method and device for standing and shaking signals of human body
  • Decomposition method and device for standing and shaking signals of human body
  • Decomposition method and device for standing and shaking signals of human body

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Embodiment Construction

[0049] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0050] A kind of signal decomposition method of human body standing shaking that the present invention proposes, comprises the following steps:

[0051] 1) Use test equipment to record the center of foot pressure trajectory COP(x,y) and time stamp sequence T (guaranteed duration of more than 10s, sampling rate higher than 50Hz), where x is the coordinates in the left and right directions, y is the coordinates in the front and rear directions, and the unit is mm (mm), time unit second (s);

[0052] 2) According to the known underfoot pressure center trajectory COP(x,y), the acceleration vector sequence Acc(xacc,yacc) of the trajectory movement and the corresponding time stamp sequence T are obtained, where xacc and yacc are the left and right and front and rear directions respectively the acceleration component;

[0053] 3) According...

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Abstract

The invention discloses a decomposition method and device for standing and shaking signals of the human body. According to the decomposition method and device, based on the actual condition that an under-foot pressure distribution center trajectory comprises two kinds of motion mechanisms including passive movement and active adjustment, through corresponding mathematical methods such as interpolation and heron's formulas, the trajectory is decomposed, signals representing two kinds of motion mechanisms are obtained, passive movement and active adjustment in the balance control process of thehuman body can be effectively separated, a reliable tool is provided for comprehensive research and evaluation of the balance ability of the human body, and the motion process of gesture control whenthe human body stands is more clearly displayed. The sense organ adjustment ability such as vision and vestibule balance ability is mostly related to the active adjustment ability of the human body, and the function of the ability is mostly reflected on the active adjustment signal of the human body; the aging degree and whole muscle stability of the human body are mostly related to the whole balance ability of the human body and mostly reflected on the passive movement signal of the human body.

Description

technical field [0001] The invention belongs to the technical field of medical detection, and relates to a method and a device for decomposing human standing shaking signals. Background technique [0002] The support structure of the human body for standing on two feet and the weight distribution of the upper and lower body determine the instability of the human body when standing, which improves the balance ability of the human body and makes its adjustment process very complicated. In various daily activities, the musculoskeletal system, the nervous system, and the body's proprioceptive and visual functions all play different roles in the adjustment of balance. At the same time, in the process of human aging, with the decline of various functions, the balance ability, a comprehensive human body function, will also show signs of degeneration relatively early. Therefore, evaluating the balance ability of the human body can be used as a routine inspection index for elderly ca...

Claims

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Application Information

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IPC IPC(8): A61B5/11A61B5/103A61B5/00
CPCA61B5/1038A61B5/11A61B5/4023
Inventor 宁钢民张晟宇
Owner ZHEJIANG UNIV
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