Electrophysiological signal conjoint analysis-based human exercise ability determination method

Abstract

The invention discloses an electrophysiological signal conjoint analysis-based human exercise ability determination method, which comprises the following steps of synchronously acquiring EMG (electromyography) and ECG (electrocardiograph) signals; performing R wave peak value identification on the ECG signal to obtain an HRV (Heart Rate Variability) signal, and performing time-domain analysis, frequency-domain analysis and nonlinear analysis on each signal; performing conjoint analysis on EMG parameters and HRV parameters, looking for a relevant parameter pair with significance by adopting correlation analysis, and making a research on the association effect of exercise ability and a heart load condition; extracting an EMG characteristic and an HRV characteristic, and calculating correlation coefficients of an integral EMG value and a root mean square of the EMG signal with the HRV parameters respectively; removing redundant information to obtain a characteristic vector by utilizing PCA (Principle Component Analysis); determining the exercise ability by taking the characteristic vector of mode identification input. According to the method, the accuracy and the convenience of a human exercise ability determination model can be effectively improved, and a basis can be provided for the selection of an astronaut.

Description

technical field [0001] The invention relates to the field of human body exercise ability discrimination, in particular to a human body exercise ability discrimination method based on joint analysis of nerve electrophysiological signals. Background technique [0002] Humans evolve and live in the earth's 1G gravity environment, so the shape, structure and function of each physiological system of the human body have undergone changes to adapt to the 1G condition. When astronauts enter space and live in a weightless environment for a long time (accurately speaking, in a microgravity state), the hydrostatic pressure disappears, and the head-to-head distribution of body fluids will cause a series of adaptive changes in various physiological systems of the body, causing Obvious changes in the physiological system of the human body, such as: water and electrolyte metabolism disorders, cardiovascular dysfunction, spaceflight anemia, etc., especially the impact on motor functions, su...

AI Technical Summary

Problems solved by technology

Because astronauts are in the working environment of weightlessness for a long time, the long-term disuse of muscles will not only cause muscle atrophy, but also directly affect the working ability and endurance of muscles, and the reduction of muscle pumping effect can also lead to the decline of cardiovascular function.

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