Gait analysis method capable of carrying out auxiliary screening on knee osteoarthritis

A technique for knee osteoarthritis and analysis methods, applied in the field of gait analysis for assisting in the screening of knee osteoarthritis, can solve problems such as lack of research

Inactive Publication Date: 2016-04-06
LONGYAN UNIV
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Problems solved by technology

However, there is a lack of research on how to model the dynamics of the nonlinear gait system and distinguish between the two groups of people based

Method used

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  • Gait analysis method capable of carrying out auxiliary screening on knee osteoarthritis
  • Gait analysis method capable of carrying out auxiliary screening on knee osteoarthritis
  • Gait analysis method capable of carrying out auxiliary screening on knee osteoarthritis

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Embodiment Construction

[0056] Such as figure 1 Shown, a kind of gait analysis method of auxiliary screening knee osteoarthritis of the present invention comprises the following steps:

[0057] Step 1. Collect the gait characteristic data of the internal and external rotation angle, flexion and extension angle of the knee femur relative to the tibia, and the up and down displacement of the knee femur relative to the tibia in each knee osteoarthritis patient and healthy normal person through an optical sensor, forming a Group gait characteristic variables, the collected gait characteristic data of several patients with knee osteoarthritis and healthy normal people, the internal and external rotation angle, flexion and extension angle of the knee joint femur relative to the tibia, and the gait characteristic data of the knee joint femur relative to the tibia up and down displacement form a training set , where the internal and external rotation angle, flexion and extension angle of the knee femur relat...

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Abstract

The invention discloses a gait analysis method capable of carrying out auxiliary screening on knee osteoarthritis. The gait analysis method comprises the following steps: on the basis of the gait characteristic data of an extracted knee joint angle and displacement, dynamically carrying out neural network modeling and identification on the gait system of healthy normal people and the gait system of knee osteoarthritis patients; establishing a constant value neural network; and utilizing the constant value neural network to construct a dynamic estimator, distinguishing abnormal gaits caused by the knee osteoarthritis and the normal gaits of general healthy crowd according to a minimum error principle on the basis of differences between the gait modes of the healthy normal people and the knee osteoarthritis patients on an aspect of gait system dynamics to realize the auxiliary screening detection of the knee osteoarthritis. An optical sensor obtains the gait characteristic data, and the abnormal gaits caused by the knee osteoarthritis and the normal gaits of the general healthy crowd can be conveniently and simply distinguished in a non-intrusive way. Compared with screening means including magnetic resonance imaging, arthroscopic surgeries and the like, the gait analysis method can realize the noninvasive screening of the knee osteoarthritis and saves time and cost.

Description

technical field [0001] The invention relates to a gait analysis method for auxiliary screening of knee osteoarthritis. Background technique [0002] Knee osteoarthritis (KOA) is a chronic clinical syndrome characterized by degeneration of articular cartilage as the main pathological feature, which greatly affects the quality of life of patients, and severe cases become disabled and disabled. It is called "undead cancer". . Knee osteoarthritis is a common lesion of articular cartilage, subchondral bone and surrounding soft tissue caused by mechanical and biological factors, and the main clinical manifestations are pain and walking dysfunction. [0003] The anatomical structure of the knee joint is complex. The meniscus increases the contact between the inner and outer cartilages of the tibia and femur. The ligaments mainly play a role in guiding joint activities, while the surrounding muscles stabilize the static and dynamic postures of the joint. This double bone structure ...

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Application Information

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IPC IPC(8): G06F19/00G06N3/08
CPCG06F19/34G06N3/088
Inventor 曾玮张余王清辉马立敏王颖刘风琳
Owner LONGYAN UNIV
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