Assessment And Research Of Body Static Equilibrium Ability Based On Vision And Proprioception Blocking

Body balance ability plays an vital role in the daily behavioral activities.Once the human body balance ability is damaged,it will lead to fall,movement control barriers and other physiological diseases.Therefore,the research of human body balance ability assessment is particularly important case analysis and rehabilitation of patients with dysfunction.The maintenance of human body balance is the process of the central nervous system integrating various sensory information to make decisions,and implementing the decisions through the limbs of the joints,muscles,etc.,if there is any problem in the process it will have a certain impact on the human body balance.In this paper,the experimental conditions are based on the combination of the rigid plate and the attitude module of the human body static balance testing system,The paper has done deep research on the method of extracting the related parameters of human body static balance and the method of Balance ability assessment,and has designed the proprioception blocking experiments based on sponge pad,and has explored the human body static balance adjustment of physiological responses-the change of attitude and mechanical information,and the relationship between different characteristics information and balance ability.Now the main research achievements and innovations of the paper are summarized as follows:(1)Compared with traditional analysis based on the relevant indicators of the foot pressure center,the paper designed the data collection methods including three major parts of the information,which are the human head motion parameters,hip motion parameters,foot pressure center and the center of gravity of the trajectories,almost covering the associated with human body balance ability of the important parts of the body of information collection,which makes the balance information collection more comprehensive,and make evaluation results more accurate,reliable and more convincing.(2)In this paper,sponge pad is placed on the rigid pedal of static balancer to block the proprioception,when the sponge pad reaches a certain thickness it can be considered that the proprioception information input of the foot and ankle joint is eliminated,and this method is simple,effective and practical.The rigid plate and sponge pad can be quantitative research the changes of posture stability underproprioception blocking and vision blocking different sensory information.(3)This paper comprehensived the related indicators of foot pressure center coordinate and the output signal of attitude module,and the mechanical parameters were statistically analyzed,using the method of principal component analysis to evaluate human body balance ability under different test mode,then gived a comprehensive evaluation index,and this paper also analyzed and studied the related parameters of human body balance under proprioception blocking and vision blocking,obtained conclusion of the relationship between relevant indicators and human body static balance ability,and the conclution that the proprioception effect on static balance stability is larger than the vision,etc.,which have guidance and reference value.(4)Because traditional multivariate multiscale entropy in dealing with a large number of input variables,may relate to the large amount of calculation and is easy to memory overflow problems,the paper makes an improvement on the algorithm of traditional multivariate multi-scale entropy,then uses the traditional multivariate sample entropy and the improved multivariate sample entropy to extract the characteristics of human body motion and mechanical parameters,contrast analysis found that the improved multivariate sample entropy not only accelerate the calculation speed and has little possibility of memory overflow,but also the characteristic extraction is better.(5)Human balance system is a complex biological system,related to the human body balance data information(such as a foot pressure center coordinates)with the characteristics of multi-time-scale and multi-spatial-scale.The wavelet packet transform has multiscale and multi-resolution characteristics and multivariate multiscale entropy has multi-spatial scale characteristics,so the paper combines the wavelet entropy characteristics with multivariate multiscale entropy characteristics,and the wavelet entropy is the characteristics of the original input signal for each channel,and the multi-scale entropy is the characteristics of the whole original input signal,and then use clustering analysis to achieve the purpose of the assessment of the human body balance ability,the results show that the classification method has certain feasibility to evaluate the human body balance ability.