Human intra-abdominal pressure testing method based on musculoskeletal biodynamics

Abstract

The invention relates to a human intra-abdominal pressure testing method based on musculoskeletal biodynamics. The human intra-abdominal pressure testing method comprises the steps of acquiring a human whole body musculoskeletal model customized according to a human body; establishing musculus trasversus abdominis to surround a contact rigid body, representing a musculus trasversus abdominis group and a diaphragm muscle group through a muscle-tendon model, and further creating a muscle group model of musculus trasversus abdominis and diaphragm muscle of the human body; enabling intra-abdominal pressure to be equivalent to equivalent intra-abdominal pressure in the horizontal direction and the vertical direction so as to create a human intra-abdominal pressure equivalent force model; and capturing each posture joint angle of a certain standing posture of a tester, and inputting each posture joint angle into a human musculoskeletal biodynamics model formed by combination of the established models; and calculating the intra-abdominal pressure value under the posture. The method can be used for solving the problems that under different postures or actions, the intra-abdominal pressure is unknown, and is difficult to directly measure, the measuring cost is high, and the like.

Description

technical field [0001] The invention relates to the technical fields of medical measurement and biomedical engineering modeling, in particular to a method for testing human intra-abdominal pressure based on musculoskeletal biodynamics. Background technique [0002] Abdominal muscle contraction generates intra-abdominal pressure, which in turn produces a moment that makes the human body stretch back, which plays an important role in reducing the load on the waist and increasing the stiffness of the trunk. The impact of this effect on the analysis of the human musculoskeletal system wearing exoskeleton equipment cannot be ignored, and it will directly affect the effectiveness of the trunk exoskeleton design, which is an urgent problem to be solved. [0003] At present, the measurement methods of intra-abdominal pressure can be divided into two methods: direct pressure measurement and indirect pressure measurement. The former is directly placed in the abdominal cavity, and then...

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Problems solved by technology

[0005] In view of the above-mentioned analysis, the present invention aims to provide a human body intra-abdominal pressure test method based on musculoskeletal biodynamics to solve the problem of the unknown and influence of the existing intra-abdominal pressure of the human lumbar musculoskeletal system under different postures or actions. Difficult to ignore, difficult and expensive to measure directly

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