Abstract

Info

Title:: Analytic hierarchy process-based model for evaluating the activity and balance of vegetative nervous system

Author(s):: LI Zhangyong; MA Chengqun; LIU Zhaoyu; SI Miaomiao; AN Yaoming; Center for Biomedical Engineering, Chongqing University of Posts and Telecommunications, Chongqing 400065, China

Keywords:: ; Keywords: analytic hierarchy process; vegetative nervous system; activity; balance

Abstract:: Abstract: Objective The abnormal parameters reflecting the functional status of autonomic nerve can be regarded as a marker of poor prognosis of cardiovascular diseases. Based on the analytic hierarchy process, a quantitative evaluation method is proposed for assessing the activity and balance of vegetable nervous system. Methods By means of hierarchy analysis, heart rate variability parameters were divided into time domain parameters, frequency domain parameters and nonlinear parameters. The judgment matrix was constructed according to the relative importance of each index, and then the weight of each index was calculated. The consistency test verified the reliability of the judgment matrix. Finally, the data obtained from self-control experiment were used to verify the proposed model. Results With the increase of stress level, sympathetic nervous activity increased; parasympathetic nervous activity decreased; and the balance of sympathetic nervous activity and parasympathetic nervous activity increased. Conclusion The designed model which can reflect the change of vegetable nervous system has certain theoretical research value.