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Gait double-side symmetric evaluation method based on regression curve

A regression curve and evaluation method technology, applied in the field of pattern recognition, can solve the problems of low data utilization rate and large random error, and achieve the effects of small random fluctuation, numerical stability and high convergence

Active Publication Date: 2017-07-11
HANGZHOU DIANZI UNIV
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Problems solved by technology

[0004] Aiming at the problems of low data utilization rate and large random error in the current gait symmetry analysis of human walking, the present invention proposes a method for evaluating bilateral symmetry of gait based on the regression principle

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  • Gait double-side symmetric evaluation method based on regression curve
  • Gait double-side symmetric evaluation method based on regression curve
  • Gait double-side symmetric evaluation method based on regression curve

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Embodiment Construction

[0031] The specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings: this embodiment is implemented on the premise of the technical solution of the present invention, and provides detailed implementation methods and specific operating procedures. But the scope of protection of the present invention is not limited to the following examples.

[0032] Such as figure 1 , the implementation of the inventive method mainly comprises the following steps:

[0033] Step 1, bilateral foot acceleration signal acquisition. During the gait movement, a three-axis accelerometer from Delsys is used, and its sampling frequency is 150Hz.

[0034] In this embodiment, the selected experimental subjects are 24±1.75 healthy males, and different tempo are used as the basis for the comparison and evaluation of bilateral symmetry of gait, with 1.0m / s, 1.2m / s, 1.4m / s and 1.6m / s speed for walking on flat ground. The collected accele...

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Abstract

The invention discloses a gait double-side symmetric evaluation method based on a regression curve. The gait double-side symmetric evaluation method comprises the following steps of utilizing an acceleration sensor to obtain foot three-axis acceleration information in the gait movement, and denoising and pretreating the obtained acceleration information; extracting a denoised acceleration signal, respectively calculating double-side symmetric indexes in a continuous gait cycle, and quantitatively analyzing the symmetry of the gait. The gait double-side symmetric evaluation method has the characteristics that the simplicity and accuracy are realized; the broad application prospect is realized in the field of gait balance ability analysis and the like.

Description

technical field [0001] The invention belongs to the technical field of pattern recognition, relates to an acceleration signal recognition method, in particular to a regression curve-based bilateral gait symmetry evaluation method. Background technique [0002] The gait of the lower limbs is the posture and state of the legs during the walking process of the human body, which has the characteristics of periodicity, continuity and repetition. During human walking, the time from when one heel strikes the ground to when the heel strikes the ground again is a complete gait cycle. In gait movement, the human nerve center exhibits high-efficiency and stable gait through complex and difficult-to-reproduce controls. Among them, the main executor of gait movement is the lower limbs, and the foot, as the contact organ between the human body and the ground, plays an important role in the movement process. The symmetry analysis results of its movement are widely used in athlete training...

Claims

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Application Information

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IPC IPC(8): A61B5/11G06F17/18
CPCA61B5/112A61B5/6829A61B5/72A61B5/7203G06F17/18
Inventor 高发荣许敏华李影甘海涛
Owner HANGZHOU DIANZI UNIV
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